@themattsimpson @sarahdoingthing A category contains all the objects of a particular kind and all the functions between them.
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@sarahdoingthing So maybe you apply the Linking Number invariant https://en.wikipedia.org/wiki/Linking_number … to your two balls of string. -
@St_Rev I think of it as "say you have frictionless yarn, to what degree are you STILL screwed?" not sure if correct -
@sarahdoingthing That's pretty much right. Frictionless elastic yarn, can they be yanked into the exact same configuration w/o cutting? -
@St_Rev yes exactly
End of conversation
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. Banned in Sweden. SubGenius, Zhuangist, white-hat troll. Defrocked mathematician. Brain problems.