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Flashcards in Noteworthy Figures Deck (4)
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1

Aristotle

(384-322 b.c.e)
- Crowning achievement is the theory of the categorical syllogism
- Considered the father of logic

2

Chrysippus

(280-206 b.c.e.)
- Often considered to be the originator of propositional logic
- Introduced inferential rules (modus ponens, modus tollens, disjunctive syllogism)

3

Peter Abelard

(1079-1142)
- Generally considered the greatest logician of the Middle Ages
- Developed a truth-functional propositional logic and a theory of entailment

4

William of Ockham

(1285-1347)
- Known for his theory of truth conditions for categorical propositions, preliminary work on three-valued logic, and for work in the foundations of inductive reasoning
- Ockham's razor: the simplest one is the best