Theory that subject/predicate statements are really identity statements, so that ‘X is red’ means ‘X is identical with some red thing’.
This is in effect the same as the theory Geach traces back to Aristotle (384-322 BC), but which is criticized even earlier by Plato (c.427-c.347 BC) in the Sophist, and treats predation in terms of a two-term theory, two-name theory, and two-class theory.
Source:
P T Geach, ‘A History of the Corruptions of Logic1, Logic Matters (1972)
Table of Contents
- identity theory of mind
- identity theory of truth
- Plato’s theory of forms (or ideas)
- simple theory of types
- picture theory of meaning
Videos
Being Qua Being: A Theory of Identity, Existence, and Predication
- Hardcover Book
- Butchvarov, Panayot (Author)
- English (Publication Language)
- 288 Pages - 05/22/1979 (Publication Date) - Indiana University Press (Publisher)
Logical Properties: Identity, Existence, Predication, Necessity, Truth
- Amazon Kindle Edition
- McGinn, Colin (Author)
- English (Publication Language)
- 128 Pages - 11/09/2000 (Publication Date) - Clarendon Press (Publisher)
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