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A 2-set-up Routley-Meyer Semantics for the 4-valued Relevant Logic E4
(Wydawnictwo Uniwersytetu Łódzkiego, 2016)
The logic BN4 can be considered as the 4-valued logic of the relevant conditional and the logic E4, as the 4-valued logic of (relevant) entailment. The aim of this paper is to endow E4 with a 2-set-up Routley-Meyer semantics. ...