R. K. Meyer once gave precise form to the question of whether relevant implication can be defined in any modal system, and his answer was `no'. In the present paper, we extend S4, first with ...
Studia Logica: An International Journal for Symbolic Logic, Vol. 59, No. 1, Combining Logics I (Jul., 1997), pp. 65-102 (38 pages) We investigate the semantics of the logical systems obtained by ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback