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A [[universal affirmative]] is a categorical statement taking the form: “Every A is B.” where A and B are [[predicate|predicates]]. In the language of predicate logic, this can be expressed as: ∀x:A(x)⟹B(x). | {{g}}A [[universal affirmative]] is a categorical statement taking the form: “Every A is B.” where A and B are [[predicate|predicates]]. In the language of predicate logic, this can be expressed as: ∀x:A(x)⟹B(x). | ||
[[Universal affirmative]]s can only be partially converted. “All of Alma Cogan is dead, but only some of the class of dead people are Alma Cogan.” | [[Universal affirmative]]s can only be partially converted. “All of Alma Cogan is dead, but only some of the class of dead people are Alma Cogan.” |