Subfitness and its relation to openness and completeness is studied in the context of Heyting semilattices. A formally weaker condition (c-subfitness) is shown to be necessary and sufficient for openness and completeness to coincide. For a large class of spatial frames, c-subfit ≡ subfit.

Ideals in Heyting semilattices and open homomorphisms

TOZZI, Anna
2007-01-01

Abstract

Subfitness and its relation to openness and completeness is studied in the context of Heyting semilattices. A formally weaker condition (c-subfitness) is shown to be necessary and sufficient for openness and completeness to coincide. For a large class of spatial frames, c-subfit ≡ subfit.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11697/21419
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