contraposition

From French contraposition.

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contraposition (countable and uncountable, plural contrapositions)

1. (countable, logic) The statement of the form "if not Q then not P", given the statement "if P then Q".
2. Opposition; contrast.
   • 2012, Erwin W. Straus, Maurice Natanson, Henri Ey, Psychiatry and Philosophy, page 76:

     The expression “Allon” indicates the unique character of this relationship: that of being together in contraposition. I belong to the Allon, and yet detach myself from it.

• contrapose
• contrapositive
• implication

• “contraposition”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

From Latin contrapositio.

• IPA^(key): /kɔ̃.tʁa.po.zi.sjɔ̃/

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contraposition f (plural contrapositions)

1. (logic) contraposition