contrapositive

[ kon-truh-poz-i-tiv ]
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

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EXAMPLES FROM THE WEB FOR CONTRAPOSITIVE

Every positive in thought has a contrapositive, and the positive and contrapositive are of the same kind.

For a Disjunctive in I., of course, there is no Contrapositive.

In the case of the I proposition the contrapositive is impossible, as infringing the main rule of conversion.

There is an apparent exception to this when the real Middle in an argument is a contrapositive term, not-M.

RELATED WORDS AND SYNONYMS FOR CONTRAPOSITIVE

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.