%0 Journal Article %T Pseudocomplemented and Implicative Semilattices %J Canadian journal of mathematics %D 1982 %P 423-437 %V 34 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1982-028-6/ %R 10.4153/CJM-1982-028-6 %F 10_4153_CJM_1982_028_6