Metamath Proof Explorer


Theorem cnlnadjlem4

Description: Lemma for cnlnadji . The values of auxiliary function F are vectors. (Contributed by NM, 17-Feb-2006) (Proof shortened by Mario Carneiro, 10-Sep-2015) (New usage is discouraged.)

Ref Expression
Hypotheses cnlnadjlem.1 ⊢ T ∈ LinOp
cnlnadjlem.2 ⊢ T ∈ ContOp
cnlnadjlem.3 ⊢ G = g ∈ ℋ ⟼ T ⁡ g ⋅ ih y
cnlnadjlem.4 ⊢ B = ι w ∈ ℋ | ∀ v ∈ ℋ T ⁡ v ⋅ ih y = v ⋅ ih w
cnlnadjlem.5 ⊢ F = y ∈ ℋ ⟼ B
Assertion cnlnadjlem4 ⊢ A ∈ ℋ → F ⁡ A ∈ ℋ

Proof

Step Hyp Ref Expression
1 cnlnadjlem.1 ⊢ T ∈ LinOp
2 cnlnadjlem.2 ⊢ T ∈ ContOp
3 cnlnadjlem.3 ⊢ G = g ∈ ℋ ⟼ T ⁡ g ⋅ ih y
4 cnlnadjlem.4 ⊢ B = ι w ∈ ℋ | ∀ v ∈ ℋ T ⁡ v ⋅ ih y = v ⋅ ih w
5 cnlnadjlem.5 ⊢ F = y ∈ ℋ ⟼ B
6 1 2 3 4 cnlnadjlem3 ⊢ y ∈ ℋ → B ∈ ℋ
7 5 6 fmpti ⊢ F : ℋ ⟶ ℋ
8 7 ffvelcdmi ⊢ A ∈ ℋ → F ⁡ A ∈ ℋ