Logo Logo
Switch Language to German
Petrakis, Iosif (2016): A Direct Constructive Proof of a Stone-Weierstrass Theorem for Metric Spaces. In: Beckmann, Arnold; Bienvenu, Laurent; Jonoska, Nataša (eds.) : Pursuit of the Universal. 12th Conference on Computability in Europe, CiE 2016, Paris, France, June 27 - July 1, 2016, Proceedings. Theoretical Computer Science and General Issues, Vol. 9709. Cham: Springer. pp. 364-374
Full text not available from 'Open Access LMU'.


We present a constructive proof of a Stone-Weierstrass theorem for totally bounded metric spaces (SWtbms) which implies Bishop's Stone-Weierstrass theorem for compact metric spaces (BSWcms) found in [3]. Our proof has a clear computational content, in contrast to Bishop's highly technical proof of BSWcms and his hard to motivate concept of a (Bishop-)separating set of uniformly continuous functions. All corollaries of BSWcms in [3] are proved directly by SWtbms. We work within Bishop's informal system of constructive mathematics BISH.