this post was submitted on 13 Jun 2023
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Gaming

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From video gaming to card games and stuff in between, if it's gaming you can probably discuss it here!

See also Gaming's sister community Tabletop Gaming.


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[โ€“] [email protected] 3 points 1 year ago (1 children)

This is pretty obvious, since you can easily count from one member to the next.

I'd just like to chip in that it isn't necessary for a countably infinite set to have an obvious method of counting. Listing all of the rationals in numerical order isn't possible (what's the smallest fraction above 0?) but it is nevertheless possible to create a bijection with the naturals.

[โ€“] [email protected] 1 points 1 year ago

Great point! It's been a while since my degree (and I don't use it), so I knew I'd probably get something wrong.