Prior analytics, Book 1
Aristotle's Prior Analytics marks the beginning of formal logic. For Aristotle himself, this meant the discovery of a general theory of valid deductive argument, a project that he had described as either impossible or impracticable, probably not very long before he actually came up with syllogistic reasoning. A syllogism is the inferring of one proposition from two others of a particular form, and it is the subject of the Prior Analytics. The first book, to which this volume is devoted, offers a fairly coherent presentation of Aristotle's logic as a general theory of deductive argument.
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NOTES ON THE TEXT
Alexander Al Aphr Alexander of Aphrodisias Alexandri Aphro
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AeqB affirmative premiss Alexander ancient commentators animal AoqB apophasis Aristomenes Aristotle seems Aristotle's assertoric conclusion assertoric premiss assumed assumption Barbara Baroco belonging of necessity BeqA categorical syllogism Celarent clear complementary conversion contingent premisses contradictory counterexample definition demonstration denial derived ecthesis Eudemus evident example false genus gism given Greek hence holds hypothesis imply impossible inconclusive indeterminate indirect proofs inference logic major mean Miccalus middle term minor extreme modal modal operator necessarily belongs necessary premisses negative premiss not-white obviously one-sided possibility ousia particular premiss passage phrase possibly belongs possibly not belonging Posterior Analytics predicated premiss converts premiss is necessary premiss-pairs Prior Analytics privative premiss proposition proved reduced reductio ad impossibile second figure second premiss sense sentence syllogism comes syllogistic term-examples Terms for belonging terms that follow Theophrastus theorem thesis thinking third figure translated universal premiss universal propositions universally predicable valid moods white thing word