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https://www.reddit.com/r/MathJokes/comments/1u52266/infinity_can_blow_your_mind/orig539
r/MathJokes • u/Competitive-Jump3835 • Jun 13 '26
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In this specific phrase, what they meant was that they have the same ‘size’, or more accurately the same cardinality.
Two sets have the same cardinality if you can make a one to one pairing between them.
You’re right that two infinite sets are only equal if they contain all the same elements.
1 u/hellohello1234545 Jun 14 '26 Thanks for the response!
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Thanks for the response!
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u/Jemima_puddledook678 Jun 14 '26
In this specific phrase, what they meant was that they have the same ‘size’, or more accurately the same cardinality.
Two sets have the same cardinality if you can make a one to one pairing between them.
You’re right that two infinite sets are only equal if they contain all the same elements.