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1. Verfasser: Neumann, Jacob
Format: Preprint
Veröffentlicht: 2025
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Online-Zugang:https://arxiv.org/abs/2510.17494
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author Neumann, Jacob
author_facet Neumann, Jacob
contents We reformulate recent advances in directed type theory--a type theory where the types have the structure of synthetic (higher) categories--as a logical calculus with multiple context 'zones', following the example of Pfenning and Davies. This allows us to have two kinds of variables--'neutral' and 'polar'--with different functoriality requirements. We focus on the lowest-dimension version of this theory (where types are synthetic preorders) and apply the logical language to articulate concepts from the theory of rewriting. We also take the occasion to develop the categorical semantics of dual-context systems, proposing a notion of dual CwF to serve as a common structural base for the model theories of such logics.
format Preprint
id arxiv_https___arxiv_org_abs_2510_17494
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A Judgmental Construction of Directed Type Theory
Neumann, Jacob
Logic in Computer Science
We reformulate recent advances in directed type theory--a type theory where the types have the structure of synthetic (higher) categories--as a logical calculus with multiple context 'zones', following the example of Pfenning and Davies. This allows us to have two kinds of variables--'neutral' and 'polar'--with different functoriality requirements. We focus on the lowest-dimension version of this theory (where types are synthetic preorders) and apply the logical language to articulate concepts from the theory of rewriting. We also take the occasion to develop the categorical semantics of dual-context systems, proposing a notion of dual CwF to serve as a common structural base for the model theories of such logics.
title A Judgmental Construction of Directed Type Theory
topic Logic in Computer Science
url https://arxiv.org/abs/2510.17494