Yesn’t.
Comment on Equinunerous Sets
yesman@lemmy.world 4 weeks agoSure, but does the set of all sets that don’t include themselves include itself?
Enkers@sh.itjust.works 4 weeks ago
Comment on Equinunerous Sets
yesman@lemmy.world 4 weeks agoSure, but does the set of all sets that don’t include themselves include itself?
Yesn’t.
yetAnotherUser@discuss.tchncs.de 4 weeks ago
Easy. If and only if the integer sequence A053169 contains itself.