Metamath Proof Explorer


Theorem phop

Description: A complex inner product space in terms of ordered pair components. (Contributed by NM, 2-Apr-2007) (New usage is discouraged.)

Ref Expression
Hypotheses phop.2 ⊢ 𝐺 = ( +𝑣 ‘ 𝑈 )
phop.4 ⊢ 𝑆 = ( ·𝑠OLD ‘ 𝑈 )
phop.6 ⊢ 𝑁 = ( normCV ‘ 𝑈 )
Assertion phop ( 𝑈 ∈ CPreHilOLD → 𝑈 = ⟨ ⟨ 𝐺 , 𝑆 ⟩ , 𝑁 ⟩ )

Proof

Step Hyp Ref Expression
1 phop.2 ⊢ 𝐺 = ( +𝑣 ‘ 𝑈 )
2 phop.4 ⊢ 𝑆 = ( ·𝑠OLD ‘ 𝑈 )
3 phop.6 ⊢ 𝑁 = ( normCV ‘ 𝑈 )
4 phrel ⊢ Rel CPreHilOLD
5 1st2nd ⊢ ( ( Rel CPreHilOLD ∧ 𝑈 ∈ CPreHilOLD ) → 𝑈 = ⟨ ( 1st ‘ 𝑈 ) , ( 2nd ‘ 𝑈 ) ⟩ )
6 4 5 mpan ⊢ ( 𝑈 ∈ CPreHilOLD → 𝑈 = ⟨ ( 1st ‘ 𝑈 ) , ( 2nd ‘ 𝑈 ) ⟩ )
7 3 nmcvfval ⊢ 𝑁 = ( 2nd ‘ 𝑈 )
8 7 opeq2i ⊢ ⟨ ( 1st ‘ 𝑈 ) , 𝑁 ⟩ = ⟨ ( 1st ‘ 𝑈 ) , ( 2nd ‘ 𝑈 ) ⟩
9 phnv ⊢ ( 𝑈 ∈ CPreHilOLD → 𝑈 ∈ NrmCVec )
10 eqid ⊢ ( 1st ‘ 𝑈 ) = ( 1st ‘ 𝑈 )
11 10 nvvc ⊢ ( 𝑈 ∈ NrmCVec → ( 1st ‘ 𝑈 ) ∈ CVecOLD )
12 vcrel ⊢ Rel CVecOLD
13 1st2nd ⊢ ( ( Rel CVecOLD ∧ ( 1st ‘ 𝑈 ) ∈ CVecOLD ) → ( 1st ‘ 𝑈 ) = ⟨ ( 1st ‘ ( 1st ‘ 𝑈 ) ) , ( 2nd ‘ ( 1st ‘ 𝑈 ) ) ⟩ )
14 12 13 mpan ⊢ ( ( 1st ‘ 𝑈 ) ∈ CVecOLD → ( 1st ‘ 𝑈 ) = ⟨ ( 1st ‘ ( 1st ‘ 𝑈 ) ) , ( 2nd ‘ ( 1st ‘ 𝑈 ) ) ⟩ )
15 1 vafval ⊢ 𝐺 = ( 1st ‘ ( 1st ‘ 𝑈 ) )
16 2 smfval ⊢ 𝑆 = ( 2nd ‘ ( 1st ‘ 𝑈 ) )
17 15 16 opeq12i ⊢ ⟨ 𝐺 , 𝑆 ⟩ = ⟨ ( 1st ‘ ( 1st ‘ 𝑈 ) ) , ( 2nd ‘ ( 1st ‘ 𝑈 ) ) ⟩
18 14 17 eqtr4di ⊢ ( ( 1st ‘ 𝑈 ) ∈ CVecOLD → ( 1st ‘ 𝑈 ) = ⟨ 𝐺 , 𝑆 ⟩ )
19 9 11 18 3syl ⊢ ( 𝑈 ∈ CPreHilOLD → ( 1st ‘ 𝑈 ) = ⟨ 𝐺 , 𝑆 ⟩ )
20 19 opeq1d ⊢ ( 𝑈 ∈ CPreHilOLD → ⟨ ( 1st ‘ 𝑈 ) , 𝑁 ⟩ = ⟨ ⟨ 𝐺 , 𝑆 ⟩ , 𝑁 ⟩ )
21 8 20 eqtr3id ⊢ ( 𝑈 ∈ CPreHilOLD → ⟨ ( 1st ‘ 𝑈 ) , ( 2nd ‘ 𝑈 ) ⟩ = ⟨ ⟨ 𝐺 , 𝑆 ⟩ , 𝑁 ⟩ )
22 6 21 eqtrd ⊢ ( 𝑈 ∈ CPreHilOLD → 𝑈 = ⟨ ⟨ 𝐺 , 𝑆 ⟩ , 𝑁 ⟩ )