@article{Robles_Blanco_López_Paradela_Recio_2016, title={Relational semantics for the 4-valued relevant logics BN4 and E4}, volume={25}, url={https://apcz.umk.pl/LLP/article/view/LLP.2016.006}, DOI={10.12775/LLP.2016.006}, abstractNote={The logic BN4 was defined by R.T. Brady in 1982. It can be considered as the 4-valued logic of the relevant conditional. E4 is a variant of BN4 that can be considered as the 4-valued logic of (relevant) entailment. The aim of this paper is to define reduced general Routley-Meyer semantics for BN4 and E4. It is proved that BN4 and E4 are strongly sound and complete w.r.t. their respective semantics.}, number={2}, journal={Logic and Logical Philosophy}, author={Robles, Gemma and Blanco, José M. and López, Sandra M. and Paradela, Jesús R. and Recio, Marcos M.}, year={2016}, month={Apr.}, pages={173–201} }