Convergences in Perfect BL-algebras.
Copower objects and their applications to finiteness in topoi.
Corrigendum à l'article "Sur la construction de certaines MS-algèbres" (Port. Math., 39(1-4) (1980), 489-496)
Counting measure for Kuratowski finite parts and decidability
Curry algebras
In [6] da Costa has introduced a new hierarchy , of logics that are both paraconsistent and paracomplete. Such logics are now known as non-alethic logics. In this article we present an algebraic version of the logics and study some of their properties.
Cyclic ordered groups and MV-algebras
Cylindric probability algebras.