Hofmaimaier@feddit.org to Science Memes@mander.xyzEnglish · 2 个月前everywherefeddit.orgimagemessage-square25linkfedilinkarrow-up1426arrow-down112
arrow-up1414arrow-down1imageeverywherefeddit.orgHofmaimaier@feddit.org to Science Memes@mander.xyzEnglish · 2 个月前message-square25linkfedilink
minus-squaretetris11@feddit.uklinkfedilinkEnglisharrow-up1·2 个月前it is not an element of itself, but is a subset of every other set
it is not an element of itself, but is a subset of every other set