contraposition

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English[edit]

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Etymology[edit]

contra- +‎ position

Noun[edit]

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.

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