contrapositive

Example Sentences

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The proof of part ii. is the contrapositive of part i.

From Textbooks • Mar. 30, 2016

He has a wife and kids at home," says twin Nicole, who then states the contrapositive of the real lesson of reality programming: "Celebs like him are just average normal people.

From Time Magazine Archive

But inasmuch as any positive may have more than one contrapositive, we cannot tell immediately or without some knowledge of the circumstances or context, what the precise counter-implicate is.

From Logic, Inductive and Deductive by Minto, William

In the case of the I proposition the contrapositive is impossible, as infringing the main rule of conversion.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" by Various

But take the obverse of the contrapositive of both premises: All m is p; All m is s: ∴ Some s is p.

From Logic Deductive and Inductive by Read, Carveth