A constructive logic rejecting the law of excluded middle (A ∨ ¬A) as a universal axiom; propositions are identified with proofs (BHK interpretation). Sound and complete for Kripke semantics over partially-ordered frames.
A constructive logic rejecting the law of excluded middle (A ∨ ¬A) as a universal axiom; propositions are identified with proofs (BHK interpretation). Sound and complete for Kripke semantics over partially-ordered frames.