@[reducible, inline]
abbrev
TopologicalSpace.DirectLimit.Space
{ι : Type u_1}
[Preorder ι]
(X : ι → Type u_2)
[(i : ι) → TopologicalSpace (X i)]
(f : (i j : ι) → i ≤ j → X i → X j)
:
Type (max u_2 u_1)
Instances For
def
TopologicalSpace.DirectLimit.of
{ι : Type u_1}
[Preorder ι]
(X : ι → Type u_2)
[(i : ι) → TopologicalSpace (X i)]
(f : (i j : ι) → i ≤ j → X i → X j)
(i : ι)
(x : X i)
:
Space X f
Instances For
theorem
TopologicalSpace.DirectLimit.of_continuous
{ι : Type u_1}
[Preorder ι]
(X : ι → Type u_2)
[(i : ι) → TopologicalSpace (X i)]
(f : (i j : ι) → i ≤ j → X i → X j)
(i : ι)
:
Continuous (of X f i)
noncomputable def
TopologicalSpace.DirectLimit.lift
{ι : Type u_1}
[Preorder ι]
(X : ι → Type u_2)
[(i : ι) → TopologicalSpace (X i)]
(f : (i j : ι) → i ≤ j → X i → X j)
{Y : Type u_3}
[TopologicalSpace Y]
(ψ : (i : ι) → X i → Y)
(hψ_comp : ∀ (i j : ι) (h : i ≤ j) (x : X i), ψ j (f i j h x) = ψ i x)
:
Space X f → Y
Instances For
theorem
TopologicalSpace.DirectLimit.lift_continuous
{ι : Type u_1}
[Preorder ι]
(X : ι → Type u_2)
[(i : ι) → TopologicalSpace (X i)]
(f : (i j : ι) → i ≤ j → X i → X j)
{Y : Type u_3}
[TopologicalSpace Y]
(ψ : (i : ι) → X i → Y)
(hψ_cont : ∀ (i : ι), Continuous (ψ i))
(hψ_comp : ∀ (i j : ι) (h : i ≤ j) (x : X i), ψ j (f i j h x) = ψ i x)
:
Continuous (lift X f ψ hψ_comp)