2 papers
math.LO2021
A Characterization of Non-Iterative Normal Modal Logics
Adrian Soncodi
Non-iterative normal modal logics are defined by axioms of modal degree 1. In this paper we use calculations with normal forms to determine the set of all possible non-iterative no…
math.LO2021
Automorphisms of the Lattice of Classical Modal Logics
Adrian Soncodi
In this paper we analyze the propositional extensions of the minimal classical modal logic system E, which form a lattice denoted as CExtE. Our method of analysis uses algebraic ca…