identical proposition

American  

noun

Logic.

1. a proposition in which the subject and predicate have the same meaning, as, “That which is mortal is not immortal.”

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identical proposition British  

noun

1. logic a necessary truth, esp a categorial identity, such as whatever is triangular has three sides

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Etymology

Origin of identical proposition

First recorded in 1635–45

Example Sentences

It is an identical proposition, which experience can neither shake nor confirm.

From An Examination of President Edwards' Inquiry into the Freedom of the Will by Bledsoe, Albert Taylor

The saying this is almost like offering an identical proposition.

From How to Observe Morals and Manners by Martineau, Harriet

The dictum de omni not the foundation of reasoning, but a mere identical proposition 191 3.

From A System of Logic: Ratiocinative and Inductive 7th Edition, Vol. I by Mill, John Stuart

It admits of but one attribution, and that embracing an identical proposition.

From Life: Its True Genesis by Wright, R. W.

Unquestionably:—but this is an identical proposition: for an object of desire means merely a thing which a man will procure if he can.

From Miscellaneous Writings and Speeches — Volume 2 by Macaulay, Thomas Babington Macaulay, Baron