law of contradiction

American  

noun

Logic.

1. the law that a proposition cannot be both true and false or that a thing cannot both have and not have a given property.

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Example Sentences

See Examples For:

law of contradiction

The law of contradiction, after all, is not enforceable; if it were the jails would overflow.

From The Wall Street Journal ● Oct. 2, 2016

The belief in the law of contradiction is a belief about things, not only about thoughts.

From The Problems of Philosophy by Bertrand Russell

The most signal defect of monophysite method is its unquestioning submission to the Aristotelian law of contradiction.

From Monophysitism Past and Present A Study in Christology by A. A. (Arthur Aston) Luce

Agreement with this view violates the law of contradiction; denial of it implies that two moments can be immediately adjacent.

From The philosophy of B*rtr*nd R*ss*ll by Various

Of course, the past cannot be different from what it was, but no more can our present wishes be different from what they are; this again is merely the law of contradiction.

From Mysticism and Logic and Other Essays by Bertrand Russell

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