Ultratopologies | Zendy

Sági Gábor | Zendy; Gerlits János | Zendy

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Ultratopologies

Author(s) -

Sági Gábor,

Gerlits János

Publication year - 2004

Publication title -

mathematical logic quarterly

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.473

H-Index - 28

eISSN - 1521-3870

pISSN - 0942-5616

DOI - 10.1002/malq.200310123

Subject(s) - mathematics , characterization (materials science) , compact space , existentialism , order (exchange) , pure mathematics , set (abstract data type) , topology (electrical circuits) , combinatorics , epistemology , computer science , physics , philosophy , finance , optics , economics , programming language

The notion of ultratopologies was introduced in [6] motivated by the model theory of first and higher order logics. In [6] we established some model theoretical applications of ultratopologies, for example, we provided a purely set theoretical (or topological) characterization for classes de.nable by second order existential formulas. The present note deals with topological properties of ultratopologies, like density and compactness. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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