Objection: “Axioms
Must Have Deductive Implications”
[...]A first principle is only useful and workable if you can deduce the rest of the worldview from it. You can't deduce anything from 'whatever exists exists'. You can't deduce any kind of epistemology (ie, how we know that whatever exists exists, how we know that we know, etc); we can't deduce any kind of metaphysic (ie, what is the nature of existence, what is the ground of existence, etc); and we certainly can't deduce any ethical or anthropological propositions (ie, what is right and wrong, what is the nature of man, etc).[...][1]
This objector holds that axioms must lead to deductive
consequences. A proper philosophy (this
objector believes) begins with axioms, and then is filled with deductions that
permeate its metaphysics, epistemology, ethics, and study of human nature. It should consist of a coherent structure of
axioms branching out into deductive conclusions for each area of philosophy,
similar to the structure of geometry. In
other words: the Objectivist axioms should operate as the axioms in
rationalistic philosophies function, but they fail in this task and therefore
are defective.
Objectivism as a system rejects the entire approach of
rationalism, which characteristically adopts an axiom-deductive structure as
the model of philosophy: announce your axioms, and then deduce principles and
conclusions from them. (For examples of
rationalism, consult the philosophies of Plato, Gottfried Wilhelm Leibniz, and
Immanuel Kant.)
What the axioms actually do is identify the preconditions of
all knowledge, and afterwards Objectivism integrates the axioms to specific
corollaries in the fields of metaphysics and epistemology, and eventually to
the non-axiomatic principles in epistemology, ethics, politics, and esthetics. (In Objectivism, epistemology is unique in
the respect that it has principles that are corollaries of axioms and unproved,
as well as theoretical principles that can and must be proved.) But these corollaries and theoretical principles
are not deductions from the axioms.
For instance, the law of causality is not deduced from the
law of identity, although I said in my earlier blog post that it is a corollary
of identity. When Rand said that: “[t]he
law of causality is the law of identity applied to action,” she meant it as a
certain angle on the law of identity when connected to facts about entities and
actions, a corollary or new perspective on identity.[2] She did not mean that causality follows from
identity, or that causality is a deduction from the law of identity. The identity axiom states that “a thing is
what it is,” “A is A”: it doesn’t even tell you that there are
actions. Consequently, it cannot tell
you that actions must have a nature too, they cannot contradict the entities
that act, or even that the actions must be caused by entities. Different and new observations are needed to
reach these kinds of insights and finally form the law of causality; it is not
a logical deduction from the fact of identity.[3]
More often than not, the non-axiomatic, theoretical
principles of Objectivism are induced. Only a relative few principles are properly
deduced. I believe that it would be
helpful to some philosophy students and other interested parties if someone
would simply list which principles of Objectivism are induced and which are
deduced. (Once I’ve done enough
inductions on the principles of Objectivism, I’ll try my best at carrying out
this task.)
Conclusion
In any event, I can say with certainty that none of the
principles are deduced from the axioms.
If this means that Objectivism fails the test of having “proper,” usable
axioms in the sense that philosophical rationalism uses them, then so much the
worse for rationalism and that erroneous view of axioms.
References
[1]: Part of the eighth comment on this post: http://triablogue.blogspot.kr/2009/01/a-rand-hack-philosopher.html. Made by Dominic Bnonn Tennant.
[2]: Ayn Rand, For the New Intellectual, p. 151.
[3]: Leonard Peikoff, "Objectivism Through Induction," Disc 2, Lecture 2, Track 1.
Next: Objections to the Axioms (Part 3)
References
[1]: Part of the eighth comment on this post: http://triablogue.blogspot.kr/2009/01/a-rand-hack-philosopher.html. Made by Dominic Bnonn Tennant.
[2]: Ayn Rand, For the New Intellectual, p. 151.
[3]: Leonard Peikoff, "Objectivism Through Induction," Disc 2, Lecture 2, Track 1.
Next: Objections to the Axioms (Part 3)
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