KB4

@[reducible, inline]

abbrev LO.Modal.Kripke.SymmetricTransitiveFrameClass : FrameClass

Imported declaration from the Incompleteness formalization.

Equations

• LO.Modal.Kripke.SymmetricTransitiveFrameClass = {F : LO.Modal.Kripke.Frame | IsSymmetric F.Rel ∧ IsTrans F.World F.Rel}

instance LO.Modal.Hilbert.KB4.Kripke.sound : Sound Hilbert.KB4 Kripke.SymmetricTransitiveFrameClass

instance LO.Modal.Hilbert.KB4.Kripke.consistent : Entailment.Consistent Hilbert.KB4

instance LO.Modal.Hilbert.KB4.Kripke.complete : Complete Hilbert.KB4 Kripke.SymmetricTransitiveFrameClass