WikiLean Articles · Brain · Recent changes · Proposals · Flags · Stats · About

Diff — Non-Euclidean geometry

Revision #3139 → #3637 · back to history

modifiedEight three-dimensional geometries2d8ed3d6cce5
FieldFrom #3139To #3637
noteThurston's eight 3-dimensional geometries (geometrization) are not formalized in Mathlib.Thurston's eight 3-dimensional model geometries (geometrization) are not formalized in Mathlib.