Combining Philosophers

Ideas for Penelope Maddy, Michael Dummett and Beth Lord

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3 ideas

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

18168

'Propositional functions' are propositions with a variable as subject or predicate [Maddy]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / c. not

19052

Natural language 'not' doesn't apply to sentences [Dummett]

18801

Classical negation is circular, if it relies on knowing negation-conditions from truth-conditions [Dummett]