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submitted 3 days ago by [email protected] to c/[email protected]
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[-] [email protected] 12 points 3 days ago

Hmm... the first three are the reals, but the last one is the rationals. Am I reading that right?

[-] [email protected] 4 points 2 days ago

I would just say that the first ones tries to describe the reals, but fail. Similary with the rationals. Like the second one, x belongs to the set containing itself and the real line. So in best case, x is the real line, not a member of the real line.

[-] [email protected] 0 points 2 days ago

No, n is rational.

[-] [email protected] 6 points 2 days ago

Last one is the Rationals united with a rational number and the empty set (which, union with the empty set is the identity operation)

Yeah, this is gibberish

[-] [email protected] 6 points 2 days ago
[-] [email protected] 4 points 3 days ago

I'm really rusty on my set theory symbolism.

Can we get a plain English translation of each of these (probably don't need a full interpretation, just "how would you read this aloud").

[-] [email protected] 11 points 3 days ago* (last edited 2 days ago)

Between negative infinity and infinity

~~x is a member in the set of x:es where x is on the real line~~ Nope, it is: x is a member of the set consisting of x itself and the real line.

The set of x:es where x is on the real line and the absolute value of x is greater or equal to zero

This one makes no sense... x is a member of the set cosisting the union of: the set of m/n where m and n belong to the integers, n being nonzero; the set x; and the empty set.

Last one makes no sense since x appear to be a set and a rational number at the same time. Implied by the meme it also supposed to be equivalent to the real line, which it is not.

[-] [email protected] 2 points 2 days ago

makes sense to me: i dont know the answer :3

this post was submitted on 19 Sep 2024
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