Diagonal intersection
id:
diagonal-intersection-239-3029077
title:
Diagonal intersection
text:
Diagonal intersection is a term used in mathematics, especially in set theory. If δ is an ordinal number and ⟨ X α ∣ α < δ ⟩ is a sequence of subsets of δ , then the diagonal intersection, denoted by is defined to be That is, an ordinal β is in the diagonal intersection Δ α < δ X α if and only if it is contained in the first β members of the sequence. This is the same as where the closed interval from 0 to α is used to
avoid restricting the range of the intersection.
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Diagonal_intersection
date created:
date modified:
2024-03-11T20:30:27Z
main entity:
{"identifier":"Q2894292","url":"https://www.wikidata.org/entity/Q2894292"}
image:
fields total:
13
integrity:
13