Iosif Petrakis - Direct spectra of Bishop spaces and their limits

lmcs:5615 - Logical Methods in Computer Science, April 14, 2021, Volume 17, Issue 2 - https://doi.org/10.23638/LMCS-17(2:4)2021
Direct spectra of Bishop spaces and their limits

Authors: Iosif Petrakis

We apply fundamental notions of Bishop set theory (BST), an informal theory that complements Bishop's theory of sets, to the theory of Bishop spaces, a function-theoretic approach to constructive topology. Within BST we develop the notions of a direct family of sets, of a direct spectrum of Bishop spaces, of the direct limit of a direct spectrum of Bishop spaces, and of the inverse limit of a contravariant direct spectrum of Bishop spaces. Within the extension of Bishop's informal system of constructive mathematics BISH with inductive definitions with rules of countably many premises, we prove the fundamental theorems on the direct and inverse limits of spectra of Bishop spaces and the duality principle between them.


Volume: Volume 17, Issue 2
Published on: April 14, 2021
Accepted on: March 5, 2021
Submitted on: July 9, 2019
Keywords: Mathematics - Logic


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