Metamath Proof Explorer


Theorem hvmap1o

Description: The vector to functional map provides a bijection from nonzero vectors V to nonzero functionals with closed kernels C . (Contributed by NM, 27-Mar-2015)

Ref Expression
Hypotheses hvmap1o.h ⊢ H = LHyp ⁡ K
hvmap1o.o ⊢ O = ocH ⁡ K ⁡ W
hvmap1o.u ⊢ U = DVecH ⁡ K ⁡ W
hvmap1o.v ⊢ V = Base U
hvmap1o.z ⊢ 0 ˙ = 0 U
hvmap1o.f ⊢ F = LFnl ⁡ U
hvmap1o.l ⊢ L = LKer ⁡ U
hvmap1o.d ⊢ D = LDual ⁡ U
hvmap1o.q ⊢ Q = 0 D
hvmap1o.c ⊢ C = f ∈ F | O ⁡ O ⁡ L ⁡ f = L ⁡ f
hvmap1o.m ⊢ M = HVMap ⁡ K ⁡ W
hvmap1o.k ⊢ φ → K ∈ HL ∧ W ∈ H
Assertion hvmap1o ⊢ φ → M : V ∖ 0 ˙ ⟶ 1-1 onto C ∖ Q

Proof

Step Hyp Ref Expression
1 hvmap1o.h ⊢ H = LHyp ⁡ K
2 hvmap1o.o ⊢ O = ocH ⁡ K ⁡ W
3 hvmap1o.u ⊢ U = DVecH ⁡ K ⁡ W
4 hvmap1o.v ⊢ V = Base U
5 hvmap1o.z ⊢ 0 ˙ = 0 U
6 hvmap1o.f ⊢ F = LFnl ⁡ U
7 hvmap1o.l ⊢ L = LKer ⁡ U
8 hvmap1o.d ⊢ D = LDual ⁡ U
9 hvmap1o.q ⊢ Q = 0 D
10 hvmap1o.c ⊢ C = f ∈ F | O ⁡ O ⁡ L ⁡ f = L ⁡ f
11 hvmap1o.m ⊢ M = HVMap ⁡ K ⁡ W
12 hvmap1o.k ⊢ φ → K ∈ HL ∧ W ∈ H
13 eqid ⊢ + U = + U
14 eqid ⊢ ⋅ U = ⋅ U
15 eqid ⊢ Scalar ⁡ U = Scalar ⁡ U
16 eqid ⊢ Base Scalar ⁡ U = Base Scalar ⁡ U
17 eqid ⊢ x ∈ V ∖ 0 ˙ ⟼ v ∈ V ⟼ ι k ∈ Base Scalar ⁡ U | ∃ w ∈ O ⁡ x v = w + U k ⋅ U x = x ∈ V ∖ 0 ˙ ⟼ v ∈ V ⟼ ι k ∈ Base Scalar ⁡ U | ∃ w ∈ O ⁡ x v = w + U k ⋅ U x
18 1 2 3 4 13 14 15 16 5 6 7 8 9 10 17 12 lcf1o ⊢ φ → x ∈ V ∖ 0 ˙ ⟼ v ∈ V ⟼ ι k ∈ Base Scalar ⁡ U | ∃ w ∈ O ⁡ x v = w + U k ⋅ U x : V ∖ 0 ˙ ⟶ 1-1 onto C ∖ Q
19 1 3 2 4 13 14 5 15 16 11 12 hvmapfval ⊢ φ → M = x ∈ V ∖ 0 ˙ ⟼ v ∈ V ⟼ ι k ∈ Base Scalar ⁡ U | ∃ w ∈ O ⁡ x v = w + U k ⋅ U x
20 19 f1oeq1d ⊢ φ → M : V ∖ 0 ˙ ⟶ 1-1 onto C ∖ Q ↔ x ∈ V ∖ 0 ˙ ⟼ v ∈ V ⟼ ι k ∈ Base Scalar ⁡ U | ∃ w ∈ O ⁡ x v = w + U k ⋅ U x : V ∖ 0 ˙ ⟶ 1-1 onto C ∖ Q
21 18 20 mpbird ⊢ φ → M : V ∖ 0 ˙ ⟶ 1-1 onto C ∖ Q