Cardinal assignment
id:
cardinal-assignment-305-9180299
title:
Cardinal assignment
text:
In set theory, the concept of cardinality is significantly developable without recourse to actually defining cardinal numbers as objects in the theory itself. The concepts are developed by defining equinumerosity in terms of functions and the concepts of one-to-one and onto; this gives us a quasi-ordering relation on the whole universe by size. It is not a true partial ordering because antisymmetry need not hold: if both A ≤ c B and B ≤ c A , it is true by the Cantor–Bernstein–Schroeder theorem
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Cardinal_assignment
date created:
date modified:
2023-12-13T13:10:48Z
main entity:
{"identifier":"Q5038627","url":"https://www.wikidata.org/entity/Q5038627"}
image:
fields total:
13
integrity:
13