On purported Gentzen formulations of two positive relevent logics Steve Giambrone OriginalPaper Pages: 233 - 236
On the definability of the quantifier “there exist uncountably many” Žarko Mijajlović OriginalPaper Pages: 257 - 264
Sentential logics and Maehara Interpolation Property Janusz Czelakowski OriginalPaper Pages: 265 - 283
Generalized equivalence: A pattern of mathematical expression T. A. McKee OriginalPaper Pages: 285 - 289
The Craig interpolation theorem for prepositional logics with strong negation Valentin Goranko OriginalPaper Pages: 291 - 317