English

Undefinability of Standard sequent calculi for Paraconsistent three-valued logics

Logic 2017-09-29 v2

Abstract

In this paper we study the deductive properties of a family of 3-valued paraconsistent logics. We define a notion of standard sequent calculus and prove that there is no sound and complete standard sequent calculus for these logics. Moreover, we provide non-standard sound, complete and cut free sequent calculus for Paraconsistent Weak Kleene Logic using three-sided sequents.

Keywords

Cite

@article{arxiv.1612.00963,
  title  = {Undefinability of Standard sequent calculi for Paraconsistent three-valued logics},
  author = {S. Bonzio and M. Pra Baldi},
  journal= {arXiv preprint arXiv:1612.00963},
  year   = {2017}
}

Comments

We found out that the paper contains some obscure points that can be misleading for the reader; some results shall be revised, deleted and/or replaced. As this process could take long time we would like to withdraw the submission for the moment. Thank you for your comprehension