Stone functor
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In mathematics, the Stone functor is a functor S: Topop → Bool, where Top is the category of topological spaces and Bool is the category of Boolean algebras and Boolean homomorphisms. It assigns to each topological space X the Boolean algebra S(X) of its clopen subsets, and to each morphism fop: X → Y in Topop (i.e., a continuous map f: Y → X) the homomorphism S(f): S(X) → S(Y) given by S(f)(Z) = f−1[Z].
See also
[edit]References
[edit]- Abstract and Concrete Categories. The Joy of Cats Archived 2015-04-21 at the Wayback Machine. Jiri Adámek, Horst Herrlich, George E. Strecker.
- Peter T. Johnstone, Stone Spaces. (1982) Cambridge university Press ISBN 0-521-23893-5
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