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A proposition that relates two classes or categories. Categorical propositions differ from a
proposition in that they are not comprised of sentences that are either true or false.
A syllogism in which all three statements are categorical claims/propositions. A deductive argument consisting of three statements in categorical form that together use only three terms, called the major, minor, and middle
Refers to the subject term and the predicate term. The subject is the noun. The predicate describes the
An argument in which the conclusion follows necessarily or directly from the premises.
A defect in an argument arising from some source other than the merely false premises. Both
Inductive and deductive arguments are susceptible to fallacies.
The information or content of a statement. The meaning of a statement. A sentence that is
either true or false.
"all", "no" or "some" are quantifiers. They specify how much of the subject class is included or
excluded from the predicate class. Determines the quality of a universal proposition.
An argument in which the premises provide sufficient support for drawing the conclusion. This
has to do with the relationship between the premises and the conclusion. It is about a truth
value relationship between the premises and the conclusion. It's all about the logical
construction of the argument.
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