[hist-analytic] Frrom AUNE: Analytic and A Priori
Bruce Aune
aune at philos.umass.edu
Mon Mar 23 16:32:52 EDT 2009
This is my last attempt to deal with Roger’s proposals regarding
analyticity. I told Roger before that I saw little profit in
continuing our discussion, but I now think that a few further remarks
might possibly be worthwhile. I will number my remarks so that
distinct points can be considered separately.
1. I continue to believe that Roger’s use of the expression
“analytic” is idiosyncratic and misleading, but I think he is
entitled to use it as he wants to, so long as he makes his meaning
clear to others. They may, or they may not (as I believe), find his
usage useful.
2. The standard philosophical use of the expression comes from
Kant, who used it in raising a philosophical problem that has no
connection that I can see with Roger’s concerns. This philosophical
problem persists, at least in a qualified way, and that is my
principal reason for thinking that Roger’s use is less than useful.
3. Kant explicitly applied the expression to universal affirmative
judgments, leaving its application to other judgments essentially
open. (This is one standard criticism with his procedure.) As Kant
understood them (following the logicians of his day), universal
affirmative judgments (or UAJs) contain two terms, a subject term and
a predicate term. Such judgments are true when their predicate term
applies to whatever falls under their subject term. Kant's
definition of an analytic judgment is built upon this semantical rule
and shows us why analytic judgments are bound to be true. A UAJ is
true, he said, when its predicate term is contained in the concept of
its subject; it is contained in such a way that if the subject term
applies to anything x, its predicate is guaranteed to apply to it as
well. If A&B is the subject term of a judgment J and B is its
predicate term, we can see that a thing x is truly described by A&B,
x is truly described by B as well. There is no philosophical problem
in seeing why such judgments are true, both universally (for every
object x, as we should say today) and necessarily (there are no
possible exceptions).
4. UAJs that are not analytic are, Kant stipulated, synthetic:
this is just what a synthetic UAJ is suppose to be. Although we can
see a priori that analytic UAJs are true, the universal and necessary
truth of synthetic judgments is highly problematic. There is no
discernible connection between subject and predicate that guarantees
their truth; this must be accomplished by some “third thing,”
something additional to semantic inclusion. The question “How could
judgments of this second kind possibly be known to be true a priori?"
is the fundamental topic of Kant’s famous Critique of Pure Reason.
5. In the new logic introduced by Frege, Kant’s UAJs were
transformed into universally quantified hypotheticals, the subject
and predicate terms of Kant’s judgments becoming predicates attached
to common bound variables. Although it is easy to see that anything
falling under the predicate “an F that is a G” must equally fall
under the predicate “a G,” so that “For all x, if x is an F that is a
G then x is a G” is clearly universally and necessarily true, it is
not easy to see how hypotheticals of other type are equally true
universally and necessarily.
6. Kant was convinced that representative examples of
arithmetical, geometrical, and metaphysical judgments (or assertions)
are true yet synthetic. He tried to show in his first Critique that,
in spite of being synthetic, such judgments are necessarily true.
Few philosophers today think Kant efforts in his first Critique were
successful; in the last 20 years of my professorial career I devoted
more than 15 courses exclusively to Kant’s critique, and I am
convinced that his efforts were uniformly unsuccessful. The
epistemological rationalists of the past twenty years—Chisholm,
BonJour, and others—have written books and articles trying to show
that their favorite examples of synthetic a priori statements are
actually true, but they have plenty of contemporary critics, and the
contemporary philosophical tide a pretty clearly turning against them.
7. The principal significance of the preceding paragraphs for my
ongoing dispute with Roger is that the original notion of
analyticity, Kant’s, was intimately connected with a way of
ascertaining the truth of a special class of judgments, or
statements. Kant’s conception of analyticity is now generally
conceded to be inadequate because it applies, at best, to a narrow
class of statements, UAJs of subject-predicate form or, expanded in a
natural way, to a narrow class of universally quantified
conditionals. Frege’s conception, which Frege explicitly advanced
(in his “Foundations of Arithmetic”) as a means of accommodating the
new logic that he had a large part in inventing, is also closely tied
to a way of showing the truth of analytic statements: S is
analytically true iff is reducible to a truth of logic by a
replacement of synonyms for synonyms. In my book I argue that
Frege’s conception is still unacceptably narrow, but my own
conception, which is a modification of Carnap’s, retains the truth-
certifying property.
8. In a couple of his recent notes, Roger claims that the
requirement that an adequate specification of analyticity should
possess this last property “can and should be rejected.”
9. He says, first, that “It is clear that to establish "truth" of
a sentence must be in general no more difficult than establishing
"analyticity", since every analytic sentence [according to his
specification] is true.” This remark does hold for Roger’s unusual
and anomalous notion of analyticity, but it does not hold for
traditional approaches to analyticity, which purport to make it clear
just how analytic statements are to be identified and why they
deserve to be considered true. Roger bypasses this concern entirely.
10. Roger also says, “It is also clear that even when the semantics
of a language as a whole is as clear as it possibly could be, for
example the semantics of first order arithmetic (which is as clear as
any language of similar expressive power, and clearer than most) this
does not mean that there is any reliable way of deciding whether
sentences in the language are true.” But the truth of mathematical
truths has always been considered philosophical problematic.
Mathematicians prove them (when they can) by deducing them from
various axioms, but how do we know that standard axioms are, in fact,
true? To ask this question is not cast doubt on their truth; it is
to ask what it rests on, what its basis is. Gödel thought we can
apprehend basic mathematical truths by some kind of direct intuition,
which he considered analogous to vision; others, such as Carnap, who
considered them analytic, thought they were reducible to logical
truths. (When logicists claimed they were true because analytic,
they were not even suggesting that they are true for the simple
reason that they are necessary.)
11. The current issue in philosophy about analyticity is partly
directed to the task of finding an acceptable criterion for analytic
truth, one satisfied by all and only uncontroversial examples, that
shows how such truths “are possible” and can be known by human beings
without requiring them to possess some supposed faculty of a priori
intuition, of the sort rationalists suppose; and it is partly
directed to the question of whether the objects of human
understanding, as Hume described them, can in fact be divided into
two discrete classes, one concerned with matters of fact and
existence, and one concerned with matters that can be decided without
reference to anything irreducibly empirical, except possibly for
ideas we happen to have or what meaning we give to various words. I
can’t see that Roger’s conception of analytic truth applies to either
of these matters. It seems to bypass them entirely. For that reason
alone, I doubt that most philosophers will find it useful.
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