A realization theorem for the modal logic of transitive closure $\mathsf{K}^+$
Daniyar Salkarbekovich Shamkanov · Izvestiya Mathematics · 2025
We present a justification logic corresponding to the modal logic of transitive closure $\mathsf{K}^+$ and establish a normal realization theorem relating these two systems. The result is obtained by means of a sequent calculus allowing non-well-founded proofs.