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New page: The '''Schröder-Bernstein theorem''' states: <blockquote> Let '''A''', '''B''' be sets, if |'''A'''| ≤ |'''B'''| and |'''B'''| ≤ |'''A'''|, then |'''A'''| = |'''B'''|. </blockquot...
The '''Schröder-Bernstein theorem''' states:
<blockquote>
Let '''A''', '''B''' be [[set]]s, if |'''A'''| ≤ |'''B'''| and |'''B'''| ≤ |'''A'''|, then |'''A'''| = |'''B'''|.
</blockquote>
[[category:set theory]]
<blockquote>
Let '''A''', '''B''' be [[set]]s, if |'''A'''| ≤ |'''B'''| and |'''B'''| ≤ |'''A'''|, then |'''A'''| = |'''B'''|.
</blockquote>
[[category:set theory]]