Examlex
Morgan's recognition that there are six basic systems of kinship terminology used by all of the world's cultures is still accepted as valid today.
Compound Proposition
A statement formed by combining two or more propositions with a logical operator, such as "and," "or," or "not."
Contrapositions
Logical relationships between statements where the antecedent of one is the negation of the consequent of the other, and vice versa.
Contraries
Concepts, assertions, or items that are opposite in nature, characteristics, or meaning.
Contradictories
Propositions or statements that cannot both be true at the same time, but can both be false; in classical logic, the relationship between two logical statements where one negates the other.
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