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Add HH_base_indep.

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favonia 2017-06-06 14:29:41 -06:00
parent e2a12f7db7
commit 61c9f175d3
1 changed files with 26 additions and 14 deletions
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12
homology/homology.hlean
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@ -20,4 +20,16 @@ structure homology_theory.{u} : Type.{u+1} :=
(Hadditive : Π(n : ℤ) {I : Set.{u}} (X : I → Type*), is_equiv ( (Hadditive : Π(n : ℤ) {I : Set.{u}} (X : I → Type*), is_equiv (
dirsum_elim (λi, Hh n (pinl i)) : dirsum (λi, HH n (X i)) → HH n (⋁ X)) dirsum_elim (λi, Hh n (pinl i)) : dirsum (λi, HH n (X i)) → HH n (⋁ X))
) )
section
parameter (theory : homology_theory)
open homology_theory
definition HH_base_indep (n : ℤ) {A : Type} (a b : A)
: HH theory n (pType.mk A a) ≃g HH theory n (pType.mk A b) :=
calc HH theory n (pType.mk A a) ≃g HH theory (int.succ n) (psusp A) : by exact (Hsusp theory n (pType.mk A a)) ⁻¹ᵍ
... ≃g HH theory n (pType.mk A b) : by exact Hsusp theory n (pType.mk A b)
end
end homology end homology