Jeff Calderon

The aim of this work is to introduce a series of requisites for building sound and complete tableaux systems for inferential logics based on non-deterministic valuation schemes and extend them with rules for metainferences, thus yielding metainferential tableaux system capable of proving metainferences of any level n. We show the construction of our tableaux for the logics of the Strong Kleene family and a wide range of different logical systems, most of which have not been studied previously from a metainferential standpoint. Furthermore, we implement this system into a user-friendly, publicly accessible software, designed both for educational purposes as well as assistance in research endeavors.