Combining Philosophers

Ideas for Anaximenes, Augustine and David Wiggins

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14 ideas

9. Objects / F. Identity among Objects / 1. Concept of Identity
11843 Identity over a time and at a time aren't different concepts [Wiggins]
11864 Hesperus=Hesperus, and Phosphorus=Hesperus, so necessarily Phosphorus=Hesperus [Wiggins]
9. Objects / F. Identity among Objects / 2. Defining Identity
16502 Identity is primitive [Wiggins]
16498 Identity cannot be defined, because definitions are identities [Wiggins]
16497 Leibniz's Law (not transitivity, symmetry, reflexivity) marks what is peculiar to identity [Wiggins]
11831 The formal properties of identity are reflexivity and Leibniz's Law [Wiggins]
9. Objects / F. Identity among Objects / 3. Relative Identity
14362 Relative Identity is incompatible with the Indiscernibility of Identicals [Wiggins, by Strawson,P]
11838 Relativity of Identity makes identity entirely depend on a category [Wiggins]
11847 To identify two items, we must have a common sort for them [Wiggins]
9. Objects / F. Identity among Objects / 6. Identity between Objects
16521 A is necessarily A, so if B is A, then B is also necessarily A [Wiggins]
9. Objects / F. Identity among Objects / 7. Indiscernible Objects
16505 By the principle of Indiscernibility, a symmetrical object could only be half of itself! [Wiggins]
9. Objects / F. Identity among Objects / 8. Leibniz's Law
11839 Do both 'same f as' and '=' support Leibniz's Law? [Wiggins]
11845 Substitutivity, and hence most reasoning, needs Leibniz's Law [Wiggins]
9. Objects / F. Identity among Objects / 9. Sameness
16494 We want to explain sameness as coincidence of substance, not as anything qualitative [Wiggins]