Contents: (Math. Log. Quart. 1‐2/2012)
Mathematical logic quarterly · 2012
Isomorphic formulae in classical propositional logicIsomorphism between formulae is defined with respect to categories formalizing equality of deductions in classical propositional logic and in the multiplicative fragment of classical linear propositional logic caught by proof nets.This equality is motivated by generality of deductions.Characterizations are given for pairs of isomorphic formulae, which lead to decision procedures for this isomorphism.