Combining Philosophers

Ideas for H.Putnam/P.Oppenheim, Stewart Shapiro and Graeme Forbes

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4 ideas

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

13632

Finding the logical form of a sentence is difficult, and there are no criteria of correctness [Shapiro]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

10212

Classical connectives differ from their ordinary language counterparts; '∧' is timeless, unlike 'and' [Shapiro]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / d. and

12010

Is the meaning of 'and' given by its truth table, or by its introduction and elimination rules? [Forbes,G]

5. Theory of Logic / E. Structures of Logic / 5. Functions in Logic

10209

A function is just an arbitrary correspondence between collections [Shapiro]