PHL 214 Chapter Notes - Chapter 6: Syllogism, Middle Term, Deductive Reasoning
20 Aug 2018
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Categorical logic: the basic unit of concern in categorical logic is the statement component. In categorical reasoning the statements or claims of interest are categorical statements those that make simple assertions about categories, or classes, of things. Quantifier ----- subject term ------ copula ------- predicate term. The words in categorical statements that name classes, or categories of things are called terms: each categorical statement has both a subject term and a predicate term. The subject term here is cats, and the predicate term is carnivores. The statement says that the class of cats is included in the class of carnivores. We can express the form of statement like this: all s are p: s stands for subject term, p is the predicate term. All members of the class of cats are also members of the class carnivores: universal quantity and an affirmative quality.
