Art of Problem Solving

Well-Ordering theorem: Difference between revisions

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The Well-Ordering theorem is equivalent to the [[Axiom of choice]] and [[Zorn's Lemma]].
The Well-Ordering theorem is equivalent to the [[Axiom of choice]] and [[Zorn's Lemma]].
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[[Category:Set theory]]

Latest revision as of 11:40, 2 June 2019

The Well-Ordering theorem is an axiom for Set theory. It states that every set can be well-ordered. A well-ordered set is a totally ordered set $(S,\prec)$ for which each set $A\subseteq S$ has a minimum element.

The Well-Ordering theorem is equivalent to the Axiom of choice and Zorn's Lemma.

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