On the computational properties of basic mathematical notions

Fuente: arXiv
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Main Authors: Normann, Dag, Sanders, Sam
Format: Preprint
Published: 2022
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author Normann, Dag
Sanders, Sam
author_facet Normann, Dag
Sanders, Sam
contents We investigate the computational properties of basic mathematical notions pertaining to $\mathbb{R}\rightarrow \mathbb{R}$-functions and subsets of $\mathbb{R}$, like finiteness, countability, (absolute) continuity, bounded variation, suprema, and regularity. We work in higher-order computability theory based on Kleene's S1-S9 schemes. We show that the aforementioned italicised properties give rise to two huge and robust classes of computationally equivalent operations, the latter based on well-known theorems from the mainstream mathematics literature. As part of this endeavour, we develop an equivalent $λ$-calculus formulation of S1-S9 that accommodates partial objects. We show that the latter are essential to our enterprise via the study of countably based and partial functionals of type $3$.
format Preprint
id arxiv_https___arxiv_org_abs_2203_05250
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle On the computational properties of basic mathematical notions
Normann, Dag
Sanders, Sam
Logic
Logic in Computer Science
03D55, 03D75
F.1.1
We investigate the computational properties of basic mathematical notions pertaining to $\mathbb{R}\rightarrow \mathbb{R}$-functions and subsets of $\mathbb{R}$, like finiteness, countability, (absolute) continuity, bounded variation, suprema, and regularity. We work in higher-order computability theory based on Kleene's S1-S9 schemes. We show that the aforementioned italicised properties give rise to two huge and robust classes of computationally equivalent operations, the latter based on well-known theorems from the mainstream mathematics literature. As part of this endeavour, we develop an equivalent $λ$-calculus formulation of S1-S9 that accommodates partial objects. We show that the latter are essential to our enterprise via the study of countably based and partial functionals of type $3$.
title On the computational properties of basic mathematical notions
topic Logic
Logic in Computer Science
03D55, 03D75
F.1.1
url https://arxiv.org/abs/2203.05250