PAEZ DIAZ, FÉLIX A.. About the lattice of pretopologies on an set X. []. , 29, 2, pp.127-142. ISSN 0120-419X.

Abstract. We show that (Pretop(X),≤), the lattice of pretopologies on an arbitrary set X, always has a framework; we present a characterization of the co-atoms in Pretop(X) in terms of ultratopologies on X.

: lattice; pretopologies; complete lattices frameworks; ultratopologies.

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