logical relation
Noun

A relation between propositions (synset 113805250)
domain category: logic  the branch of philosophy that analyzes inferencehypernym: relation  an abstraction belonging to or characteristic of two entities or parts togetherhyponym:
 contradictory  two propositions are contradictories if both cannot be true (or both cannot be false) at the same time
 contrary  a logical relation such that two propositions are contraries if both cannot be true but both can be false
 transitivity  (logic and mathematics) a relation between three elements such that if it holds between the first and second and it also holds between the second and third it must necessarily hold between the first and third
 reflexiveness, reflexivity  (logic and mathematics) a relation such that it holds between an element and itself
 modality, mode  a classification of propositions on the basis of whether they claim necessity or possibility or impossibility
 conditional relation, implication, logical implication  a logical relation between propositions p and q of the form `if p then q'; if p is true then q cannot be false
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