this post was submitted on 01 Feb 2024
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[–] Ragdoll_X@lemmy.world 5 points 9 months ago (1 children)

Is this from Principia Mathematica or smth?

[–] Sop@lemmy.blahaj.zone 7 points 9 months ago

This looks like classical ordinal set theory in relatively modern notation. I’d guess that Principia Mathematica uses batshit notation compared to this but I haven’t read it.