Of servants, lovers, and benefactors: Peirce's algebra of relatives of 1870 R. M. Martin Article Pages: 27 - 48
Note on a completeness theorem in the theory of counterfactuals Erik C. W. Krabbe Critical Note Pages: 91 - 93
Probability implication in the logics of classical and quantum mechanics Sŀawomir Bugajski Article Pages: 95 - 106
The principle of excluded middle in quantum logic P. MittelstaedtE. -W. Stachow Article Pages: 181 - 208
Natural deduction, separation, and the meaning of logical operators Kent Bendall Article Pages: 245 - 276
Model theory for modal logic—part II the elimination of De re modality Kit Fine Article Pages: 277 - 306