identical proposition

noun

, Logic.

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

identical proposition

noun

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

Word History and Origins

Origin of identical proposition¹

First recorded in 1635–45

Example Sentences

His protest was against the insinuation which even an identical proposition may carry.

From Project Gutenberg

Stated in one of these ways, it is an identical proposition,—true, but utterly barren of consequences.

From Project Gutenberg

An identical proposition is one that says the same thing precisely in subject and predicate.

From Project Gutenberg

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

From Project Gutenberg

If Every man is fallible, is it an identical proposition that Every man is liable to error?

From Project Gutenberg