subcontrary
[ suhb-kon-trer-ee ]
noun,plural sub·con·tra·ries.Logic.
one of two propositions that can both be true but cannot both be false.
Origin of subcontrary
1Words Nearby subcontrary
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
British Dictionary definitions for subcontrary
subcontrary
/ (sʌbˈkɒntrərɪ) logic /
adjective
(of a pair of propositions) related such that they cannot both be false at once, although they may be true together: Compare contrary (def. 5), contradictory (def. 3)
nounplural -ries
a statement that cannot be false when a given statement is false
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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