Every countably presented formal topology is spatial, classically

Publisher: Cambridge University Press

E-ISSN: 1943-5886|71|2|491-500

ISSN: 0022-4812

Source: The Journal of Symbolic Logic, Vol.71, Iss.2, 2006-06, pp. : 491-500

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Abstract

By using some classical reasoning we show that any countably presented formal topology, namely, a formal topology with a countable axiom set, is spatial.