Heyting* algebras, topological boolean algebras and P.O. systems Alain Touraille OriginalPaper Pages: 21 - 31
Finite equational bases for subalgebra distributive varieties J. Shapiro OriginalPaper Pages: 36 - 40
Arguesian lattices whose skeleton is a chain James B. NationDouglas A. Pickering OriginalPaper Pages: 91 - 100
A note on algebraically and existentially closed structures Stanley Burris OriginalPaper Pages: 186 - 187
A × A congruence coherent impliesA congruence permutable David M. ClarkIsidore Fleischer OriginalPaper Pages: 192 - 192