Proof Theory and Philosophy
by Greg Restall
Publisher: consequently.org 2006
Number of pages: 168
This is a usable textbook in philosophical logic, accessible to someone who's done only an intro course in logic, covering some model theory and proof theory of propositional logic, and predicate logic. User-friendly, pedagogically useful and philosophically motivated presentation.
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An undergraduate college level textbook covering first order predicate logic with identity but omitting metalogical proofs. The first rules of formal logic were written over 2300 years ago by Aristotle and are still vital.
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