Go Oct 07, 2013 A categorical syllogism is an argument consisting of exactly three categorical propositions (two premises and a conclusion) in which there appear a total of exactly three categorical terms, each of which is used exactly twice.

Go Jan 01, 1970 The fallacy is committed when a standard form categorical syllogism contains four terms.

Go Jan 01, 1970 The middle term in the premises of a standard form categorical syllogism never refers to all of the members of the category it describes.

Go Jan 01, 1970 A particular conclusion is drawn from universal premises.

Go Jan 01, 1970 A standard form categorical syllogism has two negative premises (a negative premise is any premise of the form 'No S are P' or 'Some S is not P').

Go Jan 01, 1970 The conclusion of a standard form categorical syllogism is affirmative, but at least one of the premises is negative.

Go Jan 01, 1970 Any argument of the following form is invalid: (1) If A then B (2) B Therefore, A

Go Jan 01, 1970 The predicate term of the conclusion refers to all members of that category, but the same term in the premises refers only to some members of that category.