law of contradiction

noun Logic.

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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Nearby words

law of action and reaction, law of areas, law of averages, law of conservation, law of contiguity, law of contradiction, law of cosines, law of definite composition, law of diminishing marginal utility, law of diminishing returns, law of dominance

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019