Definition:Categorical Syllogism/Historical Note

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Historical Note on Categorical Syllogism

The predicate calculus was undiscovered 100 years ago... For well over 2,000 years before that, some of the same logical material was handled by the theory of the syllogism, which we owe to Aristotle; virtually nothing was added to it in that period. There can today be no doubt that predicate calculus has replaced the syllogism as an instrument for serious logical work; predicate calculus is to syllogism what a precision tool is to a blunt knife... There are no reasons other than historical ones for studying the syllogism; but this theory has been of importance in the history of both logic and philosophy, and perhaps therefore deserves a place in a modern logic course.
-- 1965: E.J. Lemmon: Beginning Logic: $\S 4.4$: The Syllogism


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