- AKBAR AND JEFFS GUIDE TO WRIGHTS THEORY
OF TRUTH
-
- Crispin Wright has done more to motivate
and develop contemporary discussions of anti-realism than perhaps
any living philosopher. One way to wrap our heads around current
debates is to engage in rational reconstruction of
the main themes in his masterful Truth and Objectivity.
In doing this, I will sometimes put things in ways different
from Wright and sometimes giving reasons that Wright doesnt
give. This will help us tease out the deep points at the center
of Wrights deep reformulation of this old debate.
-
- 1. Cartoon of Landscape
Prior to Wright
- 1.1.Moral Realism
- 1.2.Three Arguments
Against Moral Realism
- 1.3. Traditional
Varieties of Anti-Realism About Ethics
- 1.3.1. Non-Cognitivism
- 1.3.2 Error Theory
- 1.3.3 Relativism
- 1.4. The Deflationists
Challenge to the Whole Debate
- 2. Wrights
Response
- 2.1. Against Deflationism
- 2.2. A Minimalist
Theory of Truth
- 2.3. Three Ways
to Enrich Minimalism
- 2.3.1 Superassertibility
and the Euthyphronic Dimension
- 2.3.2 Enriching
the Correspondence Platitude
- 2.3.2.1 Cognitive
Command
- 2.3.2.2 Wide Cosmological
Role
-
- 1.
Cartoon of Landscape Prior to Wright
- We cant understand Wrights
hope to inaugurate a new realism/anti-realism debate unless we
understand previous ones. Heres a cartoon version of bits
of this debates as applied to moral discourse.
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- 1.1.
Moral Realism
- Part of what it is to be human is to engage
in conversation about what ought to be the case. When not
debating about what ought to be done by others and ourselves,
we often engage in both praise and recrimination. Also, many
institutions constitutively provide rewards and punishment in
an attempt to regulate the behavior of others (most notably the
state, schools, and the family). Well, whats going
on?
- One way to figure out what's going on is
to examine the language used in typical ethical debates.
We can start by look at some pieces of vocabulary characteristic
of ethical debates. Consider the following kinds of sentences.
Where x stands for the description of an act, people often
say things like.
-
- You ought to
do x.
People should always do x.
People should never do x.
X is morally obligatory.
X is morally permissible.
X is morally impermissible.
X is morally right.
X is morally wrong.
X is morally good.
X is morally bad.
X is neither right nor wrong.
-
- Some of the broadest kinds of questions
we can ask about these sentences are: Are these sentences genuine
assertions capable of being true or false? Are these sentences
ever really true? Are any of these kinds of sentences true
for everyone at all times? If you answer yes to all of
these questions then you are a moral realist. We can actually
give this as a definition.
-
- Moral realism is the position that:
- (a) Ethical sentences
are genuine assertions capable of being true or false,
- (b) Many ethical
sentences are true, and
- (c) The truth
of ethical sentences are in some sense independent of people.
-
- For the moral realist, explanatory life
is easy in certain ways. Namely, if ethical sentences have
the above properties, then we are not largely deluded when we
argue with one another about what ought to be the case.
A conversation about what ought to be the case could then, presumably,
be explained just like any other kind of conversation concerning
what is true. If moral realism is false, though, it seems
that we are somewhat deluded when we try to discover how we and
others ought to live our lives.
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- 1.2.
Three Arguments Against Moral Realism
- The following three arguments provide evidence
for the claim that moral realism is incorrect. After presenting
the two arguments we will consider various ways which one could
deny moral realism.
-
- The argument from disagreement and undecidability.
- (1) There is widespread
disagreement among people about ethical issues.
- (2) In the sciences
there are clear procedures followed such that if two people disagree
about a scientific claim, the disagreement can be rationally
adjudicated.
- (3) However, there
does not seem to be any such procedures for ethical claims.
- (4) A good explanation
for this disagreement and apparent undecidability of ethical
claims is that moral realism is false.
-
- The argument from queerness.
- (1) When sentences
are true, they are true because of what they mean and the way
the world is.
- (2) Therefore,
if an ethical claim such as X is morally obligatory
were true, then something in world would have to make it true
(given what the claim means).
- (3) But, given
the meaning of obligatory, X is morally
obligatory entails that X ought to be done
in normal situations.
- (4) But then something
in the world is making, X ought to be done in normal
situations true.
- (5) Our best theory
of what exists in the world comes from the natural sciences.
- (6) But nothing
in the world described by the natural sciences makes sentences
that tell us what we ought to do true.
- (7) Therefore,
whatever in the world could make X is morally obligatory
true would have to be very weird, a fact totally at odds with
what we study in the sciences.
- (8) This is evidence
for the claim that such facts dont actually exist.
-
- 2.3 The argument from ideology (from
Nietzsche and Marx)
- (1) If one studies history then one sees
that very often ethical beliefs are used to regulate the behavior
of others in a way inimical to their own interests.
- (2) For example, exploited workers are
taught that it is immoral to rebel against their oppressors.
- (3) Positing that all ethical beliefs function
this way (as a way to regulate the behavior of the weak) is a
good explanation of why people hold the moral beliefs they do.
- (4) But if all ethical beliefs' sole function
is to operate ideologically in this manner, there is no reason
to think that moral realism is true.
-
- Each of these arguments provide evidence
for the claim that moral realism is false, but none of them tell
us which of the three planks in the definition of moral realism
above should be given up. Thus, at this point we merely
know that the moral realist needs to say something in reaction
to these three arguments. As we study various ethical positions
(consequentialism, deontological theories, and virtue theory)
we will need to keep in mind how and to what extent each position
answers these arguments.
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- 1.3.
Traditional Varieties of Anti-Realism About Ethics
- In the following three sections we will
consider three ways to be a moral anti-realist.
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- 1.3.1.
Non-Cognitivism
- Non-cognitivism is the position
that:
- (a) Ethical sentences
are not genuine assertions capable of being true or false.
- (b) No ethical
sentences are true (since they are neither true nor false).
- (c) The truth
of ethical sentences are independent of people (again, because
they are neither true or false).
-
- Traditional non-cognitivist theories of
ethics are often derisively called, Boo/Hurrah theories,
because traditional noncognitivist like A.J. Ayer believed that
ethical sentences really functioned to express emotions in such
a way that the content of a sentence such as The death
penalty is morally right was really Hurrah for the
death penalty.
- One problem non-cognitivists have is explaining
moral argumentation. If the content of ethical sentences
is really just equivalent to exclamations such as Boo and Hurrah,
then how in the world can ethical sentences function in arguments?
Consider the following argument.
- (1) The death penalty is either morally
right or it is not the case that the death penalty is morally
right.
- (2) If it is not
the case that the death penalty is morally right, then it should
not be legal.
- (3) Therefore,
either the death penalty is morally right, or the death penalty
should not be legal.
-
- Just about anyone recognizes that this
argument is valid in the sense that if premises (1) and (2) are
true, then the conclusion (3) has to be true. The validity
seems to be forced upon us as a matter of logic. However, non-cognitivism
states that none of the above sentences are truth-apt.
But then it seems that we cannot make sense of the validity or
invalidity of ethical arguments. Again, this is because
the notion of logical validity is that in a logically valid argument
it cannot be the case that the premises are true and the conclusion
false (strictly speaking, the way this is stated would end up
having all arguments with ethical sentences in them come out
as logically valid, but this is also clearly unacceptable).
-
- Sophisticated non-cognitivists like Alan
Gibbard (see his Wise Choices, Apt Feelings) address this
issue.
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- 1.3.2
Error Theory
- Error Theory (or moral irrealism)
is the position that:
- (a) Ethical sentences
are genuine assertions capable of being true or false.
- (b) No ethical
sentences are true (thus, they are all false).
- (c) The truth
of ethical sentences are independent of people (again, this is
because they are all false).
-
- The advantage of error theory is that it
seems to be able to make sense of moral argumentation better
than non-cognitivism can. An argument is logically valid
if and only if it is not logically possible for the premisses
to be true and the conclusion false. The error theorist
can say that it is logically possible for ethical sentences to
be true, but that they just never are because no moral facts
exist. Consider the following argument.
- (1) The present king of France is bald.
- (2) If someone
is bald then they have no hair.
- (3) Therefore,
the present king of France has no hair.
-
- This is a logically valid argument even
though the fact that there is no present king of France makes
premise 1. false. The falsity of the premise renders the
argument not sound, but it is still valid in the sense that were
all of the premises true, logic alone would force the conclusion
to be true. The error theorist has to say that no moral
arguments are sound. However, she can make sense of the
validity of moral arguments in this sense.
-
- One might wonder how the error theorist
can say that the sentence Abortion is wrong is false
while the sentence Abortion is not wrong is also
false. For the error theorist the two sentences say, respectively,
there exists a moral property wrongness, and wrongness
holds of abortion, and there exists a moral property
wrongness, and wrongness does not hold of abortion.
Since the error theorist thinks that moral properties do not
exist, the error theorist can consistently hold that both sentences
are false.
-
- A really readable recent defense of error
theory is Richard Garner's Beyond Morality.
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- 1.3.3
Relativism
- Moral relativism is the position
that:
- (a)Ethical sentences
are genuine assertions capable of being true or false.
- (b) Many ethical
sentences are true.
- (c) The truth
of ethical sentences are not independent of people in the following
way. If a person believes that an ethical sentence is true,
then it is true for that person.
-
- Note- this form of relativism can be called
individual moral relativism. Many people also
believe in cultural moral relativism, that holds that if enough
people in a culture believe that an ethical sentence is true,
then it is true for the members of that culture. We will
discuss this position below.
-
- I don't think that moral relativism of
this sort is coherent. Consider the following argument.
-
- (1) It is constitutive
of the notion of truth that if a sentence is true, then people
who believe that the sentence is false are making a mistake.
- (2) It is also
a fact of logic that if a claim is capable of being true, then
it is either true or false.
- (3) So consider
the sentence, Abortion is wrong. Moral relativism
holds that this sentence is truth apt (by the first part of the
position), so by 2. it is either true or false.
- (4) Say Ralph
believes that abortion is wrong and Bill believes that abortion
is not wrong.
- (5) From the above
it follows that either Ralph or Bill is mistaken.
- (6) But from moral
relativism and 4. we have that Abortion is wrong
is true for Ralph, and Abortion is not wrong is true
for Bill.
- (7) But then it
doesn't follow that either Bill or Ralph is mistaken. In fact,
if 6. is true, then we cannot make sense of either of them being
mistaken.
- (8) But 5. and
7. contradict one another.
- (9) Therefore
moral relativism is false.
-
- The point of the above is that the whole
notion of true for somebody is incoherent.
It is constitutive of the notion of truth that people can be
mistaken. If you hold that nobody can be mistaken about
their ethical beliefs, then you can't make sense of those beliefs
being true. Rather than trying to discern a notion of truth,
such that 1 or 2 doesn't hold, I think the person drawn to forms
of relativism that cant make sense of a mistake should
embrace either non-cognitivism or error theory.
-
- If you disagree about it being constitutive
of the notion of truth that people can be mistaken, there are
still other problems with moral relativism. Consider the
kind of relativism that many people believe, cultural moral
relativism:
- (a) Ethical sentences
are genuine assertions capable of being true or false.
- (b) Many ethical
sentences are true.
- (c) The truth
of ethical sentences are not independent of people in the following
way. If the moral code of a society or culture decides
that a given ethical sentence is true, then it is true for members
of that culture.
-
- This view has three serious problems.
The first concerns the problem of moral criticism of other societies.
-
- (1) If cultural
moral relativism is true, then if the moral code of a society
or culture decides that a given ethical sentence is true, then
it is true for members of that culture.
- (2) The moral
code of Nazi Germany decided that the ethical sentence Killing
Jews, Gypsies, communists, homosexuals, handicapped people, and
people who oppose Hitler is morally permissible is true.
- (3) So by cultural
moral relativism then Killing Jews, Gypsies, communists,
homosexuals, handicapped people, and people who oppose Hitler
is morally permissible was true for citizens of Nazi Germany.
- (4) But the sentence
Killing Jews, Gypsies, communists, homosexuals, handicapped
people, and people who oppose Hitler is morally permissible
is false.
- (5) Therefore,
cultural moral relativism is false.
- (6) Of course
the vast majority of people don't think that the sentence Killing
Jews, Gypsies, communists, homosexuals, handicapped people, and
people who oppose Hitler is morally permissible is true
for anybody. The falsity of this sentence is what makes
most people think that World War II was a just war.
-
- If one thinks that all that matters is
that the sentence is false for us, then one still must confront
problems about using the notion of true for us.
Presumably we want to be able to criticize the moral code of
our own society, but cultural relativism seems to make this impossible.
Consider the following argument.
-
- (1) If cultural
moral relativism is true, then if the moral code of a society
or culture decides that a given ethical sentence is true, then
it is true for members of that culture.
- (2) Thus, if we
want to find out whether or not ``Cloning is morally wrong''
is true, we just need to take a poll of people in our culture
to find out whether the majority of people agree or disagree
with the sentence.
- (3) But when I
wonder whether or not cloning is morally wrong, I am not wondering
about whether or not most Americans agree with cloning.
- (4) So moral relativism
is false.
-
- Presumably when I wonder whether or not
cloning is morally wrong, I accept the fact that most Americans
might have a mistaken view about whether or not cloning is right,
but this is just what cultural relativism precludes.
-
- Third, and finally, the idea of moral progress
is incoherent for the relativist.
-
- (1) If cultural
moral relativism is true, then if the moral code of a society
or culture decides that a given ethical sentence is true, then
it is true for members of that culture.
- (2) Thus, if we
wanted to find out whether or not It is wrong for women
to vote was true in 1895, we just needed to take a poll
of people in our culture to find out whether the majority of
people agreed or disagreed with the sentence.
- (3) But in 1895
most people would have agreed that the sentence was true, that
it was wrong for women to vote. So by cultural moral relativism
the sentence It is wrong for women to vote was true
in 1895. But then the minority who thought women should
have the right to vote were mistaken.
- (4) But since
most people today think that the sentence It is wrong for
women to vote is false, we hold that the minority who thought
women should have the right to vote were not mistaken, and by
cultural moral relativism we are correct about this.
- (5) Since lines
3. and 4. together entail a contradiction, moral relativism is
false.
-
- All of these arguments show that relativism
sort of robs you of the ground to stand on when criticizing a
given practice as immoral. These four arguments should
make us very hesitant to accept moral relativism.
-
- However, we also need to look at any additional
arguments that move people to embrace relativism in the first
place. I think that most relativists have something like
the following argument in mind.
-
- (1) Everybody
ought to be tolerant of others' beliefs, lifestyles, and cultures.
- (2) Thus, we ought
to be moral relativists, as moral relativism is the most tolerant
ethical view there is.
- (3) While this
reasoning does seem to move a lot of people, it is not very good.
Consider the following counterargument.
- (4) If moral relativism
is true, then for anyone who believes that we ought not be tolerant
it is true for that person that we ought not be tolerant.
- (5) But premiss
1 of the above argument states that everybody ought to be tolerant.
- (6) But then we
have that for a person x who believes everybody ought
not be tolerant, that it is both true for x that everybody
ought not be tolerant, and true that everybody ought to be tolerant.
This doesn't make any sense.
- (7) Therefore,
if moral relativism is true, premiss 1 of the above argument
is false.
-
- If you believe that toleration is an extremely
important virtue, then it does not follow that you should be
a moral relativist. Moreover, if you believe that toleration
is an extremely important virtue, you should be intolerant of
those who are intolerant. This is not incoherent, if toleration
is defined such that the tolerant need only tolerate tolerant
behavior.
-
- Thus, one can be a moral realist, and still
feel that much of the moral judgments people have are wrong,
because these judgments are too intolerant.
-
- Another motivation for moral relativism
is the putative moral disagreement mentioned in the argument
from disagreement and undecidability. We need to think
more carefully about how much moral disagreement there really
is in the world. Maybe there is less than the argument
from disagreement postulates. (C.S. Lewis was one of the
first to argue for this in his excellent book The Abolition
of Man. Check it out.)
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- 1.4.
The Deflationists Challenge to the Whole Debate
- Traditionally, deflationism was supposed
to undermine debates about the nature of truth, such as the debates
of the previous sessions. To see how this is supposed to work,
it will help to also get a concept of what traditional truth
theories tried to accomplish. Cartoon versions of a couple
of traditional theories of truth are.
-
- Correspondence
Theories- A proposition is true if and only if it corresponds
to the facts.
-
- On this conception
the philosopher needs to specify what this correspondence
relation comes to.
- For example Platos theory of the
forms counts as such a specification. For Plato a proposition
is true if the entity named by the subject instantiates the universal
named by the predicate.
-
- Coherence Theories-
A proposition is true if and only if it coheres with (i.e. agrees
or is not inconsistent with) the rest of the propositions which
we hold true.
-
- On this conception the philosopher needs
to specify what this coherence relation comes to.
This is a difficult task, as it seems that whole groups of people
can believe consistent, yet false beliefs. For example,
people used to believe that the sun orbited around the earth.
This agreed with everything else they believed, yet we now know
the belief to be false.
-
- Pragmatist
Theories- A proposition is true if and only if it is
useful for us to believe it.
-
- On this conception the philosopher needs
to specify what this usefulness relation comes to.
This is a difficult task, as it seems as that there are useful
beliefs that are false (e.g. during the Inquisition it was useful
for lots of people to believe in witches, as not believing in
witches could get you killed by the Inquisition), and true beliefs
that are not useful (for most people, knowledge of quantum physics
is not very useful). The American philosopher Charles
Pierce tried to spell out usefulness in terms of scientific method.
Thus, he said that a proposition is true if, at a certain point
in the ideal evolution of science, it comes to be accepted and
is never subsequently rejected.
- Traditional deflationists such as A.J.
Ayer (circa Language, Truth and Logic), wanted to argue
that all such approaches were wrong. In Chapter 5 of Ayers
book, he defends a version of what is now called a redundancy
account of truth.
-
- Redundancy
Thesis- To say P is true, is merely to say that
P.
-
- But then one must ask, what does is
true contribute to a language? For if the redundancy thesis
is correct, any time we want to say something is true, we merely
need to say that sentence. The deflationist answers this by noting
that is true allows us to quote pro-sententially.
For example, if I want to assert my agreeement with everything
Aristotle wrote, I could read all of his books to someone. Or
I could just say, Everything Aristotle says is true.
-
- So on this view, the truth predicate doesnt
really contribute anything to language, other than making prosentential
assertions easier.
- So a deflationist like Ayer would take
the Redundancy Thesis to make unsupportable the above three projects.
Since to assert that P is true is nothing more than asserting
that P we dont need a philosophically sophisticated
theory of truth.
-
- This is an extraordinarily wierd claim,
for note that the deflationist would still need to ask under
what conditions we are justified in asserting P.
What do we mean by the conditions under which we are justified
in asserting P? By our normal notion of being
justified in asserting something we would take it to be the case
that the following sentence is true.
-
- For some sentence
P, it is possible that P is true even though no
one will ever be able to be justified in asserting P.
-
- For example, we may never be able to tell
how old the universe is. We may never be justified in the
saying the universe is 15 billion years old, since
we may never be able to know this is true. For all this,
the universe is 15 billion years old may be true.
Likewise, by our normal notion of being justified in asserting
something, we also take the following to be true.
-
- For some sentence
P, it is possible that we are justified in asserting P,
even though P is false.
-
- Consider past scientific theories that
were entirely justified at the time people believed in them.
Some of these theories, such as Newtonian physics, are now known
to be false. Thus, the idea of replacing the notion
of truth with that of being justified, or warranted, in asserting
something seems not better off than the coherence and pragmatic
theories of truth.
-
- This is not the end of the story though.
Assume that one (for the purpose of philosophical theorizing)
one can replace the notion of truth with that of warranted assertibility
(P is warrantedly assertible is another way
to say that one would be justified if one asserted P).
Even if one thinks that one needs to theorize about when we are
justified in asserting things, as opposed to theorizing about
truth, one still can reformulate the earlier truth theories as
theories about the nature of evidential warrant. Consider
these:
-
- Correspondence
Theories- A proposition is warrantedly assertible if
and only if it corresponds to the facts.
-
- Coherence Theories-
A proposition is warrantedly assertible if and only if it coheres
with the rest of the propositions which we hold true.
-
- Pragmatist
Theories- A proposition is warrantedly assertible if
and only if it is useful for us to believe it.
-
- Philosophical problems associated with
truth dont disappear just because you stop talking about
truth. Any debate between the classical truth theorists can simply
be reformulated in terms of warranted assertibility. Clearly
the same holds for realism debates.
- As we shall see, Wrights new argument
against deflationism is related to these concerns.
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- 2.
Wrights Response
- The astute reader of Truth and Objectivity
will by now realize that Wrights new take does have
antecedent's. In fact both Dummett and Wrights anti-realisms
can be thought of as attempts (following Kant) to come up with
more sophisticated relativistic positions. For example
- Dummettian
anti-realism-
- (a) Sentences
in discourse D are genuine assertions capable of being
true or false.
- (b) Many sentences
in discourse D are true.
- (c) The truth
of sentences in discourse D not independent of people
in the following way. There are no absolutely undecidable
sentences; that is, every sentence that is true or false is such
that someone could realize that it is true or false.
-
- [Interestingly, this kind of verificationist
position is one of the central planks of Kants Critique
of Pure Reason. See Strawsons book.]
- Wright himself argues that this while this
is an important form of anti-realism, especially in the philosophy
of math, it does not do justice to ways in which we might want
to be intuitive anti-realists about other discourses such as
comedy. Moreover, so stated, it leaves many questions unanswered.
Why are there no undecidable sentences? Is it because (anti-skeptically)
our human capacities are so great that we can track the true
well? Or is it because (idealistically) the universe is sort
of ready made for human knowledge? Are we putting people on a
pedestal, or taking the universe down a notch? Or is it just
because we live in a society that demands cognitive obeisance
after a certain point (this is what we will call Euthyphronic
convergence below), or is it because our minds are just organized
in a certain uniform way (Kants felt like this was the
case and that it was the case by necessity, but neo-Kantians
and some of Kants critics thought that the minds
organization could not ground necessity properly, thus reducing
what we might call idealistic Dummettian anti-realism to vulgar
relativism)? So at the very least there will be many distinct
forms of Dummettian anti-realism, and we need a framework from
which to adjudicate them.
-
- After Wrights discussion of deflationism
and two of Wigginsmarks of truth (convergence and best
explanation) we will be left with three new wrinkles.
- Wrightean realism-
- (a) Sentences
in discourse D are genuine assertions capable of being
true or false.
- (b) Many sentences
in discourse D are true.
- (c) The truth
of sentences in discourse D are not independent of people
in one of the following three ways: (ci) the Euthyphronic test
shows superassertibility and truth (as applied to the discourse)
to have expanatory, intensional, and extensional divergence,
(cii) cognitive command holds for the discourse, and (ciii) wide
cosmological role holds for entities postulated by the discourse.
-
- Now of course there are going to be many
varieties of anti-realism according to how (ci)-(ciii) fail.
However, since Wright thinks that non-cognitivism and error theory
are bad (for largely the reasons given above), he does not want
to countenance anti-realisms where (a) and (b) fail.
-
- So Wrights master argument has quite
a few steps. Here I present it with and the chapters in
which it is presented.
-
- (1) Forget about
non-cognitivism and error theory (affirm (a) and (b) of the realism),
because non-cognitivism cant make sense of rational argumentation
involving sentences of a non-cognitivistically construed discourse,
and error theory involves bad faith. (Chapter I, sections
I and II)
- (2)Dont
think being a global deflationist about truth frees you up from
having to think philosophically about plank (c) of the traditional
statement of realism.
- (3) For that matter
deflationism is false, as it entails that sentences are true
if and only if they are warrantedly assertible, and I can show
by logic that ~TP --> T~P. But clearly we dont have
~WAP --> WA~P. So T and WA are not equivalent. (Chapter
I, section III)
- (4) If we adopt
my (Wrights) approach we can perhaps get at what deflationists
and non-cognitivists were after by attributing to them the belief
in minimalism, which merely affirms a set of platitudes about
truth (given on page 34) (Chapter I, section IV; Chapter II
section I)
- (5) Epistemically
contrained notions of truth such as Dummetts anti-realism
and Putnams internal realism should be: (1) committed to
intuitionist logic, and (2) use superassertibility as a truth
predicate. Superassertibility is also a good truth predicate
for the minimalist. (Chapter II, sections II, III, IV, V,
VI)
- (6) Realisms are
best thought of as what one gets when one beefs up minimalism.
This can be done in two ways, (a) teasing apart truth from superassertibility
(these views will be similar to Dummetts versions of realism),
and (b) bulking up the correspondence platitude, that is interpreting
it in a way where it tells us something informative about how
correspondence works. On this latter point, if we reflect on
Wiggins convergence we will see that the status of a bulked
up correspondence thesis is what properly distinguishes objective
convergence from non-objective convergence (Chapter III)
- (7) (6a) can be
done by affirming that there are truths that are not superassertible
(extensional non-equivalence), or by arguing the two have an
intensional or possibly explanatory divergence. We can understand
this if we reflecting on a Euthyphronic dilemma for the equation
of truth and superassertibility (Appendix to Chapter III)
- (8) (6b) can be
done by affirming Cognitive Command (Chapter IV) as a
claim about believers who represent the world, and also by affirming
wide cosmological role (Chapter V) as a claim about the
world so represented. Just as cognitive command does the work
convergence was to do for Wiggins, wide cosmological role does
the work best explanation was to do.
-
- This is Wrights program.
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- 2.1.
Against Deflationism
- Wrights argument against deflationism
is actually very simple. He notes that the deflationists
argument to the conclusion that is true is not a
substantial property crucially relies on the premise that P
is true has the same normative force as P
is warrantedly assertible. Remember, that for the deflationist,
when I say Everything Aristotle says is true I am
saying nothing more than that I would be warranted in asserting
any of Aristotles assertions. Thus, for the deflationist
asserting that something is true functions merely
to assert that one is warranted in asserting that claim.
-
- Wright agrees with the deflationist that
is true and is warrantedly assertible
thus coincide in normative force. But if the deflationist is
correct that this normative force exhausts the meaning of is
true then it would further follow that is true
and is warrantedly assertible were extensionally
equivalent as well, but they are not.
-
- Consider the following proof.
- 1. ~TP
- 2. | P---------assumption
for ~ introduction
- 3. | TP--------2,
Disquotational Schema
- 4. | #----------1,3
absurdity introduction
- 5. ~P----------2-4
negation introduction
- 6. T~P---------5
Disquotational Schema
-
- Thus, we have as a matter of logic, that
if it is not true that P, then it is true that it is not
the case that P (~TP --> T~P). Now if
is true and is warrantedly assertible
were the same thing, one could replace every occurrence of is
true with an occurrence of is warrandetly assertible
in this schema. But such a replacement yields falsehood.
It is not true to say that if there is no warrant for a claim,
then there is a warrant for that claims negation. Some
claims are such that they nor their negations are warranted.
Thus, deflationism is false. Is true must do more
than just be a way to assert.
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- 2.2.
A Minimalist Theory of Truth
- Minimalism essentially consists of the
following two claims, the first which follows from Wrights
reflections and the second which follows from the minimal
platitudes.
- MINIMALIST PLATITUDES
- to assert is to
present as true
- any truth-apt
content has a significant negation which is likewise truth-apt
- that to be true
is to correspond to the facts
- a statement may
be justified without being true, and vice versa. (p. 34 in text)
-
- He notes in the text that there are probably
more platitudes linking the truth values of differently
tensed statements envisaged at appropriately different times,
and maybe others.
-
- He also notes that if we make some uncontentious
suppositions (given in the footnote on page 34) that the
minimalist platitudes entail the Disquotational Schema (P
is true if and only if P), the platitude about correspondence
(CP: P is true if and only if things are as they
say they are (p. 25), and the contrast between truth and
warranted assertion (proof given above).
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- 2.3.
Three Ways to Enrich Minimalism
- As noted, Wright argues that Superassertibility
is a good truth predicate for the minimalist. If superassertibility
can work as a truth predicate, it is open to us to think
of the truth of its statements as consisting merely in their
durably meeting its standards of warranted assertion. (p
142)
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- 2.3.1
Superassertibility and the Euthyphronic Dimension
- The first aspect is essentially Dummett's
version of the anti-realism/realism debate- the worry about whether
truth is recognition transcendent (i.e. if there could be true
claims that are not superassertible). But, if truth and
supperassertibility can be prised apart. . . then the thought
is at least strongly suggested that what confers truth on a statement
is not a matter of its meeting standards internal to the language
game, as it were, but its fit with external reality. (ibid.)
-
- Wright brilliantly realizes that there
will really be three grades of Dummettian realism corresponding
to three different ways of making Socrates point against
Euthyphro (the below is stated clearly on p. 143; issues
Euthyphronic are discussed in a very deep albeit less clear manner
in the appendix to Ch. 3 pp. 108-139)
-
- (1) divergence
in explanatory ground
-
- A sentences
truth explains why it is superassertible (even necessarily so),
and not the other way around.
-
- (2) divergence
in intension
-
- Even though all
actual truths are superassertible (and vice versa), some we can
imagine a possible world where some truths are not superassertible.
-
- (3) divergence
in extension
-
- There are actual
truths that are not superassertible. This third one would be
full fledged Dummettian realism.
-
- To fully understand Wrights take
on this we have to understand the appendix to Chapter 3.
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- 2.3.2
Enriching the Correspondence Platitude
- The minimalist intends CP to express nothing
more than can be gotten from the minimal platitudes. To enrich
our interpretation of it,
-
- there are only two places
to look for such additional content: we can look at what else,
besides the links with the minimal constraints, conditions the
interpretation of the idea of correspondence [cognitive
command, introduced in chapter 3 to replace convergence,
fully discussed in chapter 4]; and at what, in a particular case
is the proper way of thinking about the facts [wide
cosmological role, introduced in chapter 5 to replace best
explanation] (143)
-
- So we have a set of questions to fully
understand Wright here. For cognitive command, why is cognitive
command a natural test for conditioning the idea of correspondence?
This involves understanding Chapter 3, where Wright argues
that cognitive command is the real issue moving debates about
convergence. For, wide cosmological role, we need to also see
why it does a better job than best explanation. For
this we look to chapter 5.
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- 2.3.2.1 Cognitive
Command
- Wiggins holds that a mark of realism for
a discourse is that opinion about the truth or falsity of claims
in that discourse tends to converge in agreement. This leaves
many questions open though. Such convergence might just happen
because powerful members of the speech community force others
to agree with them. But such convergence says nothing about how
objective or subjective the subject matter is. For this to work,
convergence must be holding for the right reasons, namely because
people are adequately representing the way things are. Thus,
convergence must be connected with representation in the following
way,
-
- Convervence/Representation
Platitude: If two devices each function to produce representations,
then if conditions are suitable, and the function properly, they
will produce divergent output if and only if presented with divergent
input. (91)
-
- Then Wright goes on to argue that this
platitude will hold for a discourse and set of speakers because
of the following.
-
- Cognitive Command:
A discourse exhibits Cognitive Command if, and only if, it is
a priori that differences in opinion arising within it can be
satisfactorily explained only in terms of divergent input,
that is, the disputants working on the basis of different
information (and hence guilty of ignorance or error, depending
on the status of that information), or unsuitable conditions
(resulting in attention or distraction and so in inferential
error, or oversight of data and so on), or upward or downwards,
or dogma, or failings in other categories already listed). (93)
-
- Another way to think about this is to distinguish
between Eythyphronic and Socratic convergence. Euthyphronic convergence
is convergence due to political factors and Socratic convergence
is convergence due to tracking the true. Then Wright's argument
is something like this.
-
- (1) Euthyphronic convergence is compatible
with minimalism, or even non-cognitivism or error theory, so
it does not work as a marker of realism.
(2) Socratic convergence is consistent with minimalism, unless
we read it in a robust manner.
(3) But reading the correspondence platitude in a robust manner
was what was at issue in the first place.
-
- Buth then, Wright can be seen as having
a suggestion for getting out of this impasse. The way to read
both the correspondence platitude and Socratic convergence in
as informative is to think about how they could go wrong. With
Euthyphronic convergence one can go wrong (have false beliefs)
just by disagreeing with the "experts" in one's society.
With Socratic convergence (as intended) one goes wrong because
one is tracking reality in the wrong way. So if we can make robust
sense of this tracking of reality, we'll be home free. This is
what the Convergence/Representation platitude gives us.
-
- But again, one wonders how to state representation
in a robust manner. Here Wright's insight into what goes wrong
has a lot of traction. If truth and knowledge is secured by representation,
then there are two possible ways to get something wrong. Something
can be wrong with the thing doing the representing, or something
can be wrong with the thing being represented. This is what Wright
is trying to get across with Cognitive Command.
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- 2.3.2.2 Wide
Cosmological Role
- Wright states
-
- Let the width of cosmological role of the
subject matter of a discourse be measured by the extent to which
citing the kinds of states of affairs with which it deals is
potentially contributative to the explanation of things other
than, or other than via, our being in attitudinal states which
take such states of such affairs as object. (p. 196)
-
- Then the substantive conclusion of Chapter
5 is
- not whether a class of states of affairs
feature in the best explanation of our beliefs about them, but
of what else there is, other than our beliefs, of which the citation
of such states of affairs can feature in good enough explanations.
(197)
-
- So there are two questions to answer: (1)
what is the problem with the best explanation test, and (2) why
does wide cosmological role do better.
-
- Wright's biggest complaint about best explanation
is that there is no reason to hold that the best explanation
of why we hold physics true will advert to the states of affair
to which the physical theories. If one thinks this is wrong because
best explanation always refers to ultimate causes, then one goes
to far, because the ultimate causes of a belief are often not
the subject matter of that belief. For example the ultimate causes
of beliefs about protons would probably be even more fundamental
particles than protons themselves. So Wright concludes,
- In short: if its best explanation need
concern only the immediate causes of the scientist's belief,
why should the proton come into it? But if explanations are best
only when ultimate, isn't it to be envisaged that the best explanation
will, as it were, go past the proton? Either ay, why so sure
that mention of it must occur in the best explanation of the
scientist's belief? (191)
-
- Wright's insight into what was motivating
best explanation is deep. When someone like Harman claims that
moral facts fail best explanation, Wright thinks what is really
bothering them is that moral facts don't explain anything other
than moral beliefs, and that it is just such (alleged) failure
that shows that moral discourse should not be realistically construed.
He contrasts a moral fact with the fact that some rocks are wet.
The facts that some rocks are wet explains a lot more than just
my belief that the rocks are wet (p. 197). In this manner, the
fact has a life of it's own as it were. It is independent of
us. Here again we see how Wright has modified and clarified the
original anti-relativist realist claim that the truth or falsity
of a proposition is independent of us. With Wide Cosmological
Role the state of affairs making the claim true or false exists
independent of us in the sense that it explains much more than
just why we believe the claim. Another really incisive insight.
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