converse

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converse

1. Logic
a. a categorical proposition obtained from another by the transposition of subject and predicate, as no bad man is bald from no bald man is bad
b. a proposition so derived, possibly by weakening a universal proposition to the corresponding particular, as some socialists are rich from all rich men are socialists
2. Logic Maths a relation that holds between two relata only when a given relation holds between them in reverse order: thus father of is the converse of son of
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

converse

[′kän‚vərs]
(mathematics)
The converse of the statement “if p, then q ” is the statement “if q, then p.”
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

converse

(logic)
The truth of a proposition of the form A => B and its converse B => A are shown in the following truth table:

A B | A => B B => A ------+---------------- f f | t t f t | t f t f | f t t t | t t
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
References in classic literature ?
He acquiesced in all her decisions, caught all her enthusiasm; and long before his visit concluded, they conversed with the familiarity of a long-established acquaintance.
I conversed with several, and was as easily heard by them as I heard them.
Neither I, nor any with whom I have conversed about the crocodile, have ever seen him weep, and therefore I take the liberty of ranking all that hath been told us of his tears amongst the fables which are only proper to amuse children.