Definition for CON'TRA-RIES

CON'TRA-RIES, n. [plur. See Contrary.]

In logic, propositions which destroy each other, but of which the falsehood of one does not establish the truth of the other. If two universals differ in quality, they are contraries; as, every vine is a tree; no vine is a tree. These can never be both true together; but they may be both false. – Watts.

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