No.1211805
File: 1789182260089.png (1.36 MB, 1448x1086, 4:3, ChatGPT Image Sep 11, 2026….png) ImgOps Google
"The thing to hold onto is that étale does not mean injective."
t. Claude
No.1211806
File: 1789183414764.png (1.35 MB, 2044x3129, 292:447, cd87efadce48301369b1d367b8….png) ImgOps Google
"Injective" means: No two different input points ever land on the same output point.
Roughly, "étale" means: If you zoom in closely enough around any one input point, the map looks invertible there.
