Fuzzy implication functions have emerged as integral components in the field of fuzzy logic, extending the classical concept of implication into a framework that can manage partial truths. These ...

We introduce several restricted versions of the structural rules in the implicational fragment of Gentzen's sequent calculus LJ. For example, we permit the applications of a structural rule only if ...

The Journal of Philosophical Logic provides a forum for work at the crossroads of philosophy and logic, old and new, with contributions ranging from conceptual to technical. Accordingly, the Journal ...