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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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40
homology/homology.hlean
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@ -5,19 +5,31 @@ open eq spectrum int trunc pointed EM group algebra circle sphere nat EM.ops equ
namespace homology namespace homology
/- homology theory -/ /- homology theory -/
structure homology_theory.{u} : Type.{u+1} :=
(HH : ℤ → pType.{u} → AbGroup.{u})
(Hh : Π(n : ℤ) {X Y : Type*} (f : X →* Y), HH n X →g HH n Y)
(Hid : Π(n : ℤ) {X : Type*} (x : HH n X), Hh n (pid X) x = x)
(Hcompose : Π(n : ℤ) {X Y Z : Type*} (g : Y →* Z) (f : X →* Y) (x : HH n X),
Hh n (g ∘* f) x = Hh n g (Hh n f x))
(Hsusp : Π(n : ℤ) (X : Type*), HH (succ n) (psusp X) ≃g HH n X)
(Hsusp_natural : Π(n : ℤ) {X Y : Type*} (f : X →* Y),
Hsusp n Y ∘ Hh (succ n) (psusp_functor f) ~ Hh n f ∘ Hsusp n X)
(Hexact : Π(n : ℤ) {X Y : Type*} (f : X →* Y), is_exact_g (Hh n f) (Hh n (pcod f)))
(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))
)
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
structure homology_theory.{u} : Type.{u+1} :=
(HH : ℤ → pType.{u} → AbGroup.{u})
(Hh : Π(n : ℤ) {X Y : Type*} (f : X →* Y), HH n X →g HH n Y)
(Hid : Π(n : ℤ) {X : Type*} (x : HH n X), Hh n (pid X) x = x)
(Hcompose : Π(n : ℤ) {X Y Z : Type*} (g : Y →* Z) (f : X →* Y) (x : HH n X),
Hh n (g ∘* f) x = Hh n g (Hh n f x))
(Hsusp : Π(n : ℤ) (X : Type*), HH (succ n) (psusp X) ≃g HH n X)
(Hsusp_natural : Π(n : ℤ) {X Y : Type*} (f : X →* Y),
Hsusp n Y ∘ Hh (succ n) (psusp_functor f) ~ Hh n f ∘ Hsusp n X)
(Hexact : Π(n : ℤ) {X Y : Type*} (f : X →* Y), is_exact_g (Hh n f) (Hh n (pcod f)))
(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))
)
end homology end homology