Metamath Proof Explorer


Theorem lcdvscl

Description: The scalar product operation value is a functional. (Contributed by NM, 20-Mar-2015)

Ref Expression
Hypotheses lcdvscl.h ⊢ H = LHyp ⁡ K
lcdvscl.u ⊢ U = DVecH ⁡ K ⁡ W
lcdvscl.s ⊢ S = Scalar ⁡ U
lcdvscl.r ⊢ R = Base S
lcdvscl.c ⊢ C = LCDual ⁡ K ⁡ W
lcdvscl.v ⊢ V = Base C
lcdvscl.t ⊢ · ˙ = ⋅ C
lcdvscl.k ⊢ φ → K ∈ HL ∧ W ∈ H
lcdvscl.x ⊢ φ → X ∈ R
lcdvscl.g ⊢ φ → G ∈ V
Assertion lcdvscl ⊢ φ → X · ˙ G ∈ V

Proof

Step Hyp Ref Expression
1 lcdvscl.h ⊢ H = LHyp ⁡ K
2 lcdvscl.u ⊢ U = DVecH ⁡ K ⁡ W
3 lcdvscl.s ⊢ S = Scalar ⁡ U
4 lcdvscl.r ⊢ R = Base S
5 lcdvscl.c ⊢ C = LCDual ⁡ K ⁡ W
6 lcdvscl.v ⊢ V = Base C
7 lcdvscl.t ⊢ · ˙ = ⋅ C
8 lcdvscl.k ⊢ φ → K ∈ HL ∧ W ∈ H
9 lcdvscl.x ⊢ φ → X ∈ R
10 lcdvscl.g ⊢ φ → G ∈ V
11 1 5 8 lcdlmod ⊢ φ → C ∈ LMod
12 eqid ⊢ Scalar ⁡ C = Scalar ⁡ C
13 eqid ⊢ Base Scalar ⁡ C = Base Scalar ⁡ C
14 1 2 3 4 5 12 13 8 lcdsbase ⊢ φ → Base Scalar ⁡ C = R
15 9 14 eleqtrrd ⊢ φ → X ∈ Base Scalar ⁡ C
16 6 12 7 13 lmodvscl ⊢ C ∈ LMod ∧ X ∈ Base Scalar ⁡ C ∧ G ∈ V → X · ˙ G ∈ V
17 11 15 10 16 syl3anc ⊢ φ → X · ˙ G ∈ V