Metamath Proof Explorer


Theorem hvmapval

Description: Value of map from nonzero vectors to nonzero functionals in the closed kernel dual space. (Contributed by NM, 23-Mar-2015)

Ref Expression
Hypotheses hvmapval.h ⊢ H = LHyp ⁡ K
hvmapval.u ⊢ U = DVecH ⁡ K ⁡ W
hvmapval.o ⊢ O = ocH ⁡ K ⁡ W
hvmapval.v ⊢ V = Base U
hvmapval.p ⊢ + ˙ = + U
hvmapval.t ⊢ · ˙ = ⋅ U
hvmapval.z ⊢ 0 ˙ = 0 U
hvmapval.s ⊢ S = Scalar ⁡ U
hvmapval.r ⊢ R = Base S
hvmapval.m ⊢ M = HVMap ⁡ K ⁡ W
hvmapval.k ⊢ φ → K ∈ A ∧ W ∈ H
hvmapval.x ⊢ φ → X ∈ V ∖ 0 ˙
Assertion hvmapval ⊢ φ → M ⁡ X = v ∈ V ⟼ ι j ∈ R | ∃ t ∈ O ⁡ X v = t + ˙ j · ˙ X

Proof

Step Hyp Ref Expression
1 hvmapval.h ⊢ H = LHyp ⁡ K
2 hvmapval.u ⊢ U = DVecH ⁡ K ⁡ W
3 hvmapval.o ⊢ O = ocH ⁡ K ⁡ W
4 hvmapval.v ⊢ V = Base U
5 hvmapval.p ⊢ + ˙ = + U
6 hvmapval.t ⊢ · ˙ = ⋅ U
7 hvmapval.z ⊢ 0 ˙ = 0 U
8 hvmapval.s ⊢ S = Scalar ⁡ U
9 hvmapval.r ⊢ R = Base S
10 hvmapval.m ⊢ M = HVMap ⁡ K ⁡ W
11 hvmapval.k ⊢ φ → K ∈ A ∧ W ∈ H
12 hvmapval.x ⊢ φ → X ∈ V ∖ 0 ˙
13 1 2 3 4 5 6 7 8 9 10 11 hvmapfval ⊢ φ → M = x ∈ V ∖ 0 ˙ ⟼ v ∈ V ⟼ ι j ∈ R | ∃ t ∈ O ⁡ x v = t + ˙ j · ˙ x
14 13 fveq1d ⊢ φ → M ⁡ X = x ∈ V ∖ 0 ˙ ⟼ v ∈ V ⟼ ι j ∈ R | ∃ t ∈ O ⁡ x v = t + ˙ j · ˙ x ⁡ X
15 4 fvexi ⊢ V ∈ V
16 15 mptex ⊢ v ∈ V ⟼ ι j ∈ R | ∃ t ∈ O ⁡ X v = t + ˙ j · ˙ X ∈ V
17 sneq ⊢ x = X → x = X
18 17 fveq2d ⊢ x = X → O ⁡ x = O ⁡ X
19 oveq2 ⊢ x = X → j · ˙ x = j · ˙ X
20 19 oveq2d ⊢ x = X → t + ˙ j · ˙ x = t + ˙ j · ˙ X
21 20 eqeq2d ⊢ x = X → v = t + ˙ j · ˙ x ↔ v = t + ˙ j · ˙ X
22 18 21 rexeqbidv ⊢ x = X → ∃ t ∈ O ⁡ x v = t + ˙ j · ˙ x ↔ ∃ t ∈ O ⁡ X v = t + ˙ j · ˙ X
23 22 riotabidv ⊢ x = X → ι j ∈ R | ∃ t ∈ O ⁡ x v = t + ˙ j · ˙ x = ι j ∈ R | ∃ t ∈ O ⁡ X v = t + ˙ j · ˙ X
24 23 mpteq2dv ⊢ x = X → v ∈ V ⟼ ι j ∈ R | ∃ t ∈ O ⁡ x v = t + ˙ j · ˙ x = v ∈ V ⟼ ι j ∈ R | ∃ t ∈ O ⁡ X v = t + ˙ j · ˙ X
25 eqid ⊢ x ∈ V ∖ 0 ˙ ⟼ v ∈ V ⟼ ι j ∈ R | ∃ t ∈ O ⁡ x v = t + ˙ j · ˙ x = x ∈ V ∖ 0 ˙ ⟼ v ∈ V ⟼ ι j ∈ R | ∃ t ∈ O ⁡ x v = t + ˙ j · ˙ x
26 24 25 fvmptg ⊢ X ∈ V ∖ 0 ˙ ∧ v ∈ V ⟼ ι j ∈ R | ∃ t ∈ O ⁡ X v = t + ˙ j · ˙ X ∈ V → x ∈ V ∖ 0 ˙ ⟼ v ∈ V ⟼ ι j ∈ R | ∃ t ∈ O ⁡ x v = t + ˙ j · ˙ x ⁡ X = v ∈ V ⟼ ι j ∈ R | ∃ t ∈ O ⁡ X v = t + ˙ j · ˙ X
27 12 16 26 sylancl ⊢ φ → x ∈ V ∖ 0 ˙ ⟼ v ∈ V ⟼ ι j ∈ R | ∃ t ∈ O ⁡ x v = t + ˙ j · ˙ x ⁡ X = v ∈ V ⟼ ι j ∈ R | ∃ t ∈ O ⁡ X v = t + ˙ j · ˙ X
28 14 27 eqtrd ⊢ φ → M ⁡ X = v ∈ V ⟼ ι j ∈ R | ∃ t ∈ O ⁡ X v = t + ˙ j · ˙ X