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Baldur's Gayte (mander.xyz)
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[-] ytg@sopuli.xyz 2 points 6 days ago

Wouldn’t a straw be the product of a circle and a line?

[-] iAvicenna@lemmy.world 1 points 5 days ago

What you said is stronger than being homotopic. homotopic is weaker, for instance a line is homotopic to a point, By taking the straw (even if it has thickness) and just shrinking it along its longer axis you eventually arrive at a circle. If it has thickness you will arrive at a band and then you can also retract radially to arrive at a circle.

this post was submitted on 09 Jun 2025
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