ProCGroups.FoxDifferential.Completed.DifferentialModule.Map.GroupLike
The principal declarations in this module are:
primePowerCompletedGroupAlgebraMap_ofThe completed prime-power group-algebra map sends the group-like element ofgto the group-like element ofψ g.
omit [Fact (0 < ℓ)] in
@[simp]
theorem primePowerCompletedGroupAlgebraMap_of
(ψ : ContinuousMonoidHom G H) (g : G) :
primePowerCompletedGroupAlgebraMap (ℓ := ℓ) (G := G) (H := H) ψ
(primePowerCompletedGroupAlgebraOf (ell := ℓ) (H := G) g) =
primePowerCompletedGroupAlgebraOf (ell := ℓ) (H := H) (ψ g)The completed prime-power group-algebra map sends the group-like element of g to the group-like element of ψ g.
Show Lean proof
by
apply (primePowerCompletedGroupAlgebraSystem ℓ H).ext
intro i
change primePowerCompletedGroupAlgebraProjection (ℓ := ℓ) (G := H) i
(primePowerCompletedGroupAlgebraMap (ℓ := ℓ) (G := G) (H := H) ψ
(primePowerCompletedGroupAlgebraOf (ell := ℓ) (H := G) g)) =
primePowerCompletedGroupAlgebraProjection (ℓ := ℓ) (G := H) i
(primePowerCompletedGroupAlgebraOf (ell := ℓ) (H := H) (ψ g))
rw [primePowerCompletedGroupAlgebraProjection_map,
primePowerCompletedGroupAlgebraProjection_of,
primePowerCompletedGroupAlgebraMapStage_of,
primePowerCompletedGroupAlgebraProjection_of]
rfl