Peirce's law

GPTKB entity

Properties (11)
Predicate Object
gptkbp:instanceOf law of logic
https://www.w3.org/2000/01/rdf-schema#label Peirce's law
gptkbp:is_a classical logic
implication
principle in propositional logic
gptkbp:is_evaluated_by P_
gptkbp:is_used_in mathematical logic
gptkbp:previousName gptkb:Charles_Sanders_Peirce
gptkbp:related_to intuitionistic logic
gptkbp:relatedTo the principle of excluded middle
gptkbp:state ((P ightarrow Q) ightarrow P) ightarrow P