Reflecting cardinal
id:
reflecting-cardinal-302-16668403
title:
Reflecting cardinal
text:
In set theory, a mathematical discipline, a reflecting cardinal is a cardinal number κ for which there is a normal ideal I on κ such that for every X∈I+, the set of α∈κ for which X reflects at α is in I+.
Reflecting cardinals were introduced by. Every weakly compact cardinal is a reflecting cardinal, and is also a limit of reflecting cardinals.
The consistency strength of an inaccessible reflecting cardinal is strictly greater than a greatly Mahlo cardinal, where a cardinal κ is called greatly M
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wiki
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encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Reflecting_cardinal
date created:
date modified:
2024-03-04T06:26:54Z
main entity:
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13
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