Powers of positive elements in C *-algebras

Mathematical Logic Quarterly 57 (5):481-484 (2011)
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Abstract

In this paper, we show that Ogasawa’s theorem has a proof in Bishop style constructive mathematics . In 25, we introduced the elementary constructive theory of C*-algebras in BISH, but we did not discuss the powers of positive elements there. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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10.1002/malq.201010024

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Constructive compact operators on a Hilbert space.Hajime Ishihara - 1991 - Annals of Pure and Applied Logic 52 (1-2):31-37.

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