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[-] olafurp@lemmy.world 4 points 1 month ago

Yeah, we gonna need more rigor on this one.

"A square is a shape made up of four equally long lines a, b, c, d where a is perpendicular to c and d and parallel to b. Each of these lines meet exactly two other lines at it's ends."

I'm not a mathematician so there might an odd case somewhere in there. Maybe it has to be confined to a shared plane?

[-] sneezycat@sopuli.xyz 2 points 1 month ago

Lines are infinitely long... do you mean line segments?

Wikipedia has a good enough definition: "It has four straight sides of equal length and four equal angles." Nice and simple.

[-] olafurp@lemmy.world 4 points 1 month ago

Pentagon fits that definition also since it doesn't specify "it has four and only four" sides

[-] hansolo@lemmy.today 1 points 1 month ago

So you're saying this is the outline of a square in the astral plane? Because it sounds like you're saying this is a square in the astral plane.

[-] olafurp@lemmy.world 2 points 1 month ago

No, just a 2d plane

this post was submitted on 08 Jun 2025
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