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Bibliographic Details
Main Author: Wrigley, Joshua
Format: Preprint
Published: 2023
Subjects:
Online Access:https://arxiv.org/abs/2301.00961
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Table of Contents:
  • We study morphisms of internal locales of Grothendieck toposes externally: treating internal locales and their morphisms as sheaves and natural transformations. We characterise those morphisms of internal locales that induce surjective geometric morphisms and geometric embeddings, demonstrating that both can be computed `pointwise'. We also show that the co-frame operations on the co-frame of internal sublocales can also be computed `pointwise' too.