submitted 2 years ago* (last edited 2 years ago) by to c/memes@lemmy.world
 

I considered deleting the post, but this seems more cowardly than just admitting I was wrong. But TIL something!

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[–] 12 points 2 years ago (2 children)

It was probably mentioned in other comments, but some infinities are "larger" than others. But yes, the product of the two with the same cardinal number will have the same

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  • [–] 7 points 2 years ago (1 child)

    I think quite some people heard of the concept of different kinds of infinity, but don't know much about how these are defined. That's why this meme should be inverted, as thinking the infinities described here are the same size is the intuitive answer when you either know nothing or quite something about the definition whereas knowing just a little bit can easily lead you to the wrong answer.

    As the described in the wikipedia article in the top level comment, the thing that matters is whether you can construct a mapping (or more precisely, a bijection) from one set to the other. If so, the sets/infinities are of the same "size".

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