Minimal Topological Algebras.
Brandt groupiods and semigroups.
On certain localic nuclei
Projective frames : a general view
On transfinite iteration
Orderable spaces
On the Weierstrass-Stone approximation theorem
On lattice-ordered groups
Injective hulls in the category of distributive lattices.
Booleanization
Projective covers in categories of topological spaces and topological algebras
On profinite universal algebras
Projective covers in certain categories of topological spaces
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