On Church’s thesis in cubical assemblies

Autor: Taichi Uemura, Andrew Wakelin Swan
Rok vydání: 2021
Předmět:
Zdroj: Mathematical Structures in Computer Science. 31:1185-1204
ISSN: 1469-8072
0960-1295
Popis: We show that Church’s thesis, the axiom stating that all functions on the naturals are computable, does not hold in the cubical assemblies model of cubical type theory. We show that nevertheless Church’s thesis is consistent with univalent type theory by constructing a lex modality in cubical assemblies such that Church’s thesis holds in the corresponding reflective subuniverse.
Databáze: OpenAIRE