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1 definition found
 for Excluded middle
From The Collaborative International Dictionary of English v.0.48 :

  Exclude \Ex*clude"\, v. t. [imp. & p. p. Excluded; p. pr. &
     vb. n. Excluding.] [L. excludere, exclusum; ex out +
     claudere to shut. See Close.]
     1. To shut out; to hinder from entrance or admission; to
        debar from participation or enjoyment; to deprive of; to
        except; -- the opposite to admit; as, to exclude a crowd
        from a room or house; to exclude the light; to exclude one
        nation from the ports of another; to exclude a taxpayer
        from the privilege of voting.
        [1913 Webster]
              And none but such, from mercy I exclude. --Milton.
        [1913 Webster]
     2. To thrust out or eject; to expel; as, to exclude young
        animals from the womb or from eggs.
        [1913 Webster]
     Excluded middle. (logic) The name given to the third of the
        "three logical axioms," so-called, namely, to that one
        which is expressed by the formula: "Everything is either A
        or Not-A." no third state or condition being involved or
        allowed. See Principle of contradiction, under
        [1913 Webster]

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