Published April 1990 | Version Submitted
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A Stone-Weierstrass Theorem without Closure under Suprema

Abstract

For a compact metric space X, consider a linear subspace A of C (X) containing the constant functions. One version of the Stone-Weierstrass theorem states that, if A separates points, then the closure of A under both minima and maxima is dense in C (X). Similarly, by the Hahn-Banach theorem, if A separates probability measures, A is dense in C (X). We show that if A separates points from probability measures, then the closure of A under minima is dense in C (X). This theorem has applications in Economic Theory.

Additional Information

The authors gratefully acknowledge the assistance of Charalambos Aliprantis in the preparation of this paper. Published as McAfee, R. Preston, and Philip J. Reny. "A Stone-Weierstrass theorem without closure under suprema." Proceedings of the American Mathematical Society 114, no. 1 (1992): 61-67.

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Eprint ID
81084
Resolver ID
CaltechAUTHORS:20170901-135500931

Dates

Created
2017-09-05
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Updated
2019-10-03
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Social Science Working Papers
Series Name
Social Science Working Paper
Series Volume or Issue Number
727