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subcontrariety

noun
sub·​contrariety | \ "+\

Definition of subcontrariety

: the relation existing between subcontrary propositions in logic : the relation of two propositions with identical terms which is such that both may be true but both cannot be false — see opposition sense 2a(2)

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History and Etymology for subcontrariety

from subcontrary entry 1, after English contrary : contrariety

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