Combining Philosophers

Ideas for Philolaus, Carneades and Colin McGinn

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8 ideas

5. Theory of Logic / D. Assumptions for Logic / 4. Identity in Logic

6051	In 'x is F and x is G' we must assume the identity of x in the two statements [McGinn]

6055	Both non-contradiction and excluded middle need identity in their formulation [McGinn]

6059	Identity is unitary, indefinable, fundamental and a genuine relation [McGinn]

5. Theory of Logic / E. Structures of Logic / 1. Logical Form

2544	Thoughts have a dual aspect: as they seem to introspection, and their underlying logical reality [McGinn]

5. Theory of Logic / G. Quantification / 1. Quantification

6042	The quantifier is overrated as an analytical tool [McGinn]

6067	Existential quantifiers just express the quantity of things, leaving existence to the predicate 'exists' [McGinn]

5. Theory of Logic / G. Quantification / 3. Objectual Quantification

6069	'Partial quantifier' would be a better name than 'existential quantifier', as no existence would be implied [McGinn]

5. Theory of Logic / G. Quantification / 7. Unorthodox Quantification

6068	We need an Intentional Quantifier ("some of the things we talk about.."), so existence goes into the proposition [McGinn]