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Theorem algebraic_topology.dold_kan.higher_faces_vanish.comp_P_eq_self

Modification history

2022-07-27 14:35
src/algebraic_topology/dold_kan/projections.lean
feat(algebraic_topology/dold_kan): construction of idempotent endomorphisms (#15616) …
Added algebraic_topology.dold_kan.higher_faces_vanish.comp_P_eq_selfView on Github →