On the simplicity of some categories of closure spaces
On -discreteness in uniform spaces
Outils mathématiques pour modéliser les systèmes complexes
Partial completions of concrete functors
Primitive recursive categories and machines
Propriétés catégorielles dans la théorie des algèbres universelles
Protomodularity, descent, and semidirect products.
Quelques aspects de la dualité entre logique et topologie
Realcompactification of frames
We give a construction of Wallman-type realcompactifications of a frame by considering regular sub -frames the join of which generates . In particular, we show that the largest such regular sub -frame gives rise to the universal realcompactification of .
Reflective and coreflective subcategories of Unif (and Top)
Reflective Mac Neille completions of fibre-small categories need not be fibre-small
Relationship of algebraic theories to powerset theories and fuzzy topological theories for lattice-valued mathematics.
Set functor. II: Contravariant case
Set functors
Set functors. III: Monomorphisms, epimorphisms, isomorphisms
Simply (co)reflective subcategories of the categories determined by poset-valued functors
Some categories of models.
Some Remarks on the Category Set(l), Part II
Spectra of finitely generated Boolean flows.
Stabile Kategorien.