Source: wikibot/shelah-cardinal
= Shelah cardinal
{wiki=Shelah_cardinal}
A Shelah cardinal, named after the mathematician Saharon Shelah, is a certain kind of large cardinal in set theory, which is a branch of mathematics. Large cardinals are infinite numbers that extend the concept of cardinality beyond the standard infinite sets recognized in Zermelo-Fraenkel set theory with the Axiom of Choice (ZFC).