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Ideas for 'Metaphysics', 'The Philosophy of Mathematics' and 'Pragmatism and Deflationism'

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4 ideas

4. Formal Logic / B. Propositional Logic PL / 2. Tools of Propositional Logic / e. Axioms of PL

562	Axioms are the underlying principles of everything, and who but the philosopher can assess their truth? [Aristotle]

573	The axioms of mathematics are part of philosophy [Aristotle]

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / a. Axioms for sets

9193	ZF set theory has variables which range over sets, 'equals' and 'member', and extensionality [Dummett]

9194	The main alternative to ZF is one which includes looser classes as well as sets [Dummett]