Rigorous Reasoning

Concept · Foundations

Categorical Syllogism

A deductive argument consisting of exactly two categorical premises and a categorical conclusion involving exactly three terms.

Why it matters

The categorical syllogism is the central structure of traditional deductive logic and the focus of syllogistic evaluation.

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Related

Other concepts in Foundations

A, E, I, O PropositionsAccessibility RelationArgumentAtomic StatementAuthorial IntentBase RateBayes FactorBurden of Proof in InterpretationCalibrationCardinalityCartesian ProductCategorical Proposition