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Definition of Contraposition
1. n. A placing over against; opposite position.
Definition of Contraposition
1. Noun. (logic) The statement of the form "if not Q then not P", given the statement "if P then Q". ¹
¹ Source: wiktionary.com
Definition of Contraposition
1. [n -S]
Lexicographical Neighbors of Contraposition
Literary usage of Contraposition
Below you will find example usage of this term as found in modern and/or classical literature:
1. Dictionary of Philosophy and Psychology: Including Many of the Principal by James Mark Baldwin (1901)
"The name contraposition has been employed in a wider and in u narrower sense,
and the process described has been designated by a variety of technical terms. ..."
2. A Manual of Logic by James Welton (1896)
"Illicit contraposition. contraposition is illicit when the conclusion contains
a illicit con- distributed term which was undistributed in the premise, ..."
3. An Introductory Logic by James Edwin Creighton (1909)
"contraposition and Inversion. — In contraposition the contradictory of the
predicate of the original proposition is taken as the subject of a new assertion. ..."
4. A Text-book of Deductive Logic for the Use of Students by Prasanna K. Ray (1886)
"IIL—contraposition. contraposition consists in taking the contradictory of ...
The inference, or the proposition obtained by contraposition, is called the ..."
5. The elements of logic by Thomas Kingsmill Abbott (1885)
"We then convert it by contraposition. Of contraposition. 148. contraposition or
Conversion by contraposition consists in substituting for predicate and ..."
6. Logic: In Three Books, of Thought, of Investigation, and of Knowledge by Hermann Lotze (1888)
"The process necessary in this case has been extended to all judgments under the
name of conversion by contraposition : in the affirmative judgments the ..."
7. An Elementary Handbook of Logic by John Joseph Toohey (1918)
"contraposition 40. contraposition is an eduction by which from a given proposition
another is derived having for ..."
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