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Single Idea 12430

[filed under theme 5. Theory of Logic / A. Overview of Logic / 6. Classical Logic ]

Full Idea

In my terminology, classical logic (or at least, its most central tenets) consists of propositional preconditions for our assessing empirical evidence in the way we do.

Gist of Idea

Classical logic is our preconditions for assessing empirical evidence

Source

Philip Kitcher (A Priori Knowledge Revisited [2000], §VII)

Book Ref

'New Essays on the A Priori', ed/tr. Boghossian,P /Peacocke,C [OUP 2000], p.86

A Reaction

I like an even stronger version of this - that classical logic arises out of our experiences of things, and so we are just assessing empirical evidence in terms of other (generalised) empirical evidence. Logic results from induction. Very unfashionable.

The 4 ideas from 'A Priori Knowledge Revisited'

12428 Many necessities are inexpressible, and unknowable a priori [Kitcher]
12429 Knowing our own existence is a priori, but not necessary [Kitcher]
12430 Classical logic is our preconditions for assessing empirical evidence [Kitcher]
12431 I believe classical logic because I was taught it and use it, but it could be undermined [Kitcher]