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law of identity

American  

noun

Logic.
  1. the law that any proposition implies itself.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The fundamental principle of thought is, according to him, the law of identity; logical thinking is real thinking.

From Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 3 "Banks" to "Bassoon" by Various

Its petals, moreover, furnish the best example of the gradual transition of petals into stamens, —illustrating that wonderful law of identity which is the great discovery of modern science.

From The Atlantic Monthly, Volume 02, No. 11, September, 1858 by Various

Especially is this the case with regard to the law of identity.

From Deductive Logic by Stock, St. George William Joseph

This law is the metaphysical equivalent of the first law of motion in physics which is itself the equivalent of the law of identity in logic.

From The Philosophy of Spinoza by Ratner, Joseph

Did the 'law of sharing' so little legitimate their procedure that a law of identity of contradictories, forsooth, must be trumped up to give it scope?

From The Will to Believe : and Other Essays in Popular Philosophy by James, William

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