Combining Philosophers

Ideas for Stilpo, David Bostock and Ian Hacking

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5 ideas

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

13357

Truth-functors are usually held to be defined by their truth-tables [Bostock]

13837

With a pure notion of truth and consequence, the meanings of connectives are fixed syntactically [Hacking]

5. Theory of Logic / E. Structures of Logic / 4. Variables in Logic

13839

Perhaps variables could be dispensed with, by arrows joining places in the scope of quantifiers [Hacking]

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

13812

A 'zero-place' function just has a single value, so it is a name [Bostock]

13811

A 'total' function ranges over the whole domain, a 'partial' function over appropriate inputs [Bostock]