Combining Philosophers

Ideas for Herodotus, Michael D. Resnik and Seymour Lipschutz

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2 ideas

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

6299	Axioms are often affirmed simply because they produce results which have been accepted [Resnik]

4. Formal Logic / F. Set Theory ST / 3. Types of Set / e. Equivalence classes

8920	Equivalence relations are reflexive, symmetric and transitive, and classify similar objects [Lipschutz]