Question

Consider "Some fishmongers are not peace lovers. Thus, some non-peace lovers are not non-fishmongers. " Determine whether this immediate inference is drawn by:

A) Conversion B) Obversion C) Contraposition

Answer 1

Here, the immediate inference is drawn by Obversion.

Explanation:

"Some fishmongers are not peace lovers. Thus, some non-peace lovers are not non-fishmongers."

Here, the immediate inference is drawn by Obversion.

Obversion means an inference where the quality of the proposition is changed (from affirmative to negative) and the predicate is replaced by its contradictory but the subject term remains unchanged.