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

Diff — Sphere

Revision #1579 → #1851 · back to history

modifiedDiameter and antipodal pointsc2a08ad26f13
FieldFrom #1579To #1851
mathlib.declcontMDiffNegSpherecontMDiff_neg_sphere
noteAntipodal map on the unit sphere is formalized via negation, but diameter as a chord/segment is not defined.The antipodal map on the unit sphere is formalized via negation (`contMDiff_neg_sphere`), but diameter as a chord/segment is not defined.
addedArchimedes' sphere–cylinder volume relation6139208dffec
addedSurface area as derivative of volume7d9b023ec4bd
addedRotation group SO(3) acts on the sphere0e4511197f72
addedSphere fails the parallel postulatef262b09a407b
modifiedAntipodal points on the sphere5e59dff8c7af
FieldFrom #1579To #1851
mathlib.declcontMDiffNegSpherecontMDiff_neg_sphere
addedExotic spheree869b6caf2d3