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Def pi1_equiv_fundamental_group

Modification history

2023-06-05 06:26
src/topology/homotopy/homotopy_group.lean
feat(topology/homotopy/homotopy_group): `group` and `comm_group` instances for `π_n` (#15681) …
Deleted pi1_equiv_fundamental_groupView on Github →
2022-07-19 01:02
src/topology/homotopy/homotopy_group.lean
feat(topology/homotopy): define nth homotopy group πₙ (without the group instance) (#14724) …
Added pi1_equiv_fundamental_groupView on Github →