Order in Partial Markov Categories

Fuente: arXiv
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Main Authors: Di Lavore, Elena, Román, Mario, Sobociński, Paweł, Széles, Márk
Format: Preprint
Published: 2025
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author Di Lavore, Elena
Román, Mario
Sobociński, Paweł
Széles, Márk
author_facet Di Lavore, Elena
Román, Mario
Sobociński, Paweł
Széles, Márk
contents Partial Markov categories are a recent framework for categorical probability theory that provide an abstract account of partial probabilistic computation with updating semantics. In this article, we discuss two order relations on the morphisms of a partial Markov category. In particular, we prove that every partial Markov category is canonically preorder-enriched, recovering several well-known order enrichments. We also demonstrate that the existence of codiagonal maps (comparators) is closely related to order properties of partial Markov categories. Finally, we introduce a synthetic version of the Cauchy--Schwarz inequality and, from it, we prove that updating increases validity.
format Preprint
id arxiv_https___arxiv_org_abs_2507_19424
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Order in Partial Markov Categories
Di Lavore, Elena
Román, Mario
Sobociński, Paweł
Széles, Márk
Logic in Computer Science
18M05
Partial Markov categories are a recent framework for categorical probability theory that provide an abstract account of partial probabilistic computation with updating semantics. In this article, we discuss two order relations on the morphisms of a partial Markov category. In particular, we prove that every partial Markov category is canonically preorder-enriched, recovering several well-known order enrichments. We also demonstrate that the existence of codiagonal maps (comparators) is closely related to order properties of partial Markov categories. Finally, we introduce a synthetic version of the Cauchy--Schwarz inequality and, from it, we prove that updating increases validity.
title Order in Partial Markov Categories
topic Logic in Computer Science
18M05
url https://arxiv.org/abs/2507.19424