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Theorem nvscom 28039
Description: Commutative law for the scalar product of a normed complex vector space. (Contributed by NM, 14-Feb-2008.) (New usage is discouraged.)
Hypotheses
Ref Expression
nvscl.1 𝑋 = (BaseSet‘𝑈)
nvscl.4 𝑆 = ( ·𝑠OLD𝑈)
Assertion
Ref Expression
nvscom ((𝑈 ∈ NrmCVec ∧ (𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶𝑋)) → (𝐴𝑆(𝐵𝑆𝐶)) = (𝐵𝑆(𝐴𝑆𝐶)))

Proof of Theorem nvscom
StepHypRef Expression
1 mulcom 10338 . . . . 5 ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 · 𝐵) = (𝐵 · 𝐴))
21oveq1d 6920 . . . 4 ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((𝐴 · 𝐵)𝑆𝐶) = ((𝐵 · 𝐴)𝑆𝐶))
323adant3 1168 . . 3 ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶𝑋) → ((𝐴 · 𝐵)𝑆𝐶) = ((𝐵 · 𝐴)𝑆𝐶))
43adantl 475 . 2 ((𝑈 ∈ NrmCVec ∧ (𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶𝑋)) → ((𝐴 · 𝐵)𝑆𝐶) = ((𝐵 · 𝐴)𝑆𝐶))
5 nvscl.1 . . 3 𝑋 = (BaseSet‘𝑈)
6 nvscl.4 . . 3 𝑆 = ( ·𝑠OLD𝑈)
75, 6nvsass 28038 . 2 ((𝑈 ∈ NrmCVec ∧ (𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶𝑋)) → ((𝐴 · 𝐵)𝑆𝐶) = (𝐴𝑆(𝐵𝑆𝐶)))
8 3ancoma 1125 . . 3 ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶𝑋) ↔ (𝐵 ∈ ℂ ∧ 𝐴 ∈ ℂ ∧ 𝐶𝑋))
95, 6nvsass 28038 . . 3 ((𝑈 ∈ NrmCVec ∧ (𝐵 ∈ ℂ ∧ 𝐴 ∈ ℂ ∧ 𝐶𝑋)) → ((𝐵 · 𝐴)𝑆𝐶) = (𝐵𝑆(𝐴𝑆𝐶)))
108, 9sylan2b 589 . 2 ((𝑈 ∈ NrmCVec ∧ (𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶𝑋)) → ((𝐵 · 𝐴)𝑆𝐶) = (𝐵𝑆(𝐴𝑆𝐶)))
114, 7, 103eqtr3d 2869 1 ((𝑈 ∈ NrmCVec ∧ (𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶𝑋)) → (𝐴𝑆(𝐵𝑆𝐶)) = (𝐵𝑆(𝐴𝑆𝐶)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 386  w3a 1113   = wceq 1658  wcel 2166  cfv 6123  (class class class)co 6905  cc 10250   · cmul 10257  NrmCVeccnv 27994  BaseSetcba 27996   ·𝑠OLD cns 27997
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1896  ax-4 1910  ax-5 2011  ax-6 2077  ax-7 2114  ax-8 2168  ax-9 2175  ax-10 2194  ax-11 2209  ax-12 2222  ax-13 2391  ax-ext 2803  ax-rep 4994  ax-sep 5005  ax-nul 5013  ax-pow 5065  ax-pr 5127  ax-un 7209  ax-mulcom 10316
This theorem depends on definitions:  df-bi 199  df-an 387  df-or 881  df-3an 1115  df-tru 1662  df-ex 1881  df-nf 1885  df-sb 2070  df-mo 2605  df-eu 2640  df-clab 2812  df-cleq 2818  df-clel 2821  df-nfc 2958  df-ne 3000  df-ral 3122  df-rex 3123  df-reu 3124  df-rab 3126  df-v 3416  df-sbc 3663  df-csb 3758  df-dif 3801  df-un 3803  df-in 3805  df-ss 3812  df-nul 4145  df-if 4307  df-sn 4398  df-pr 4400  df-op 4404  df-uni 4659  df-iun 4742  df-br 4874  df-opab 4936  df-mpt 4953  df-id 5250  df-xp 5348  df-rel 5349  df-cnv 5350  df-co 5351  df-dm 5352  df-rn 5353  df-res 5354  df-ima 5355  df-iota 6086  df-fun 6125  df-fn 6126  df-f 6127  df-f1 6128  df-fo 6129  df-f1o 6130  df-fv 6131  df-ov 6908  df-oprab 6909  df-1st 7428  df-2nd 7429  df-vc 27969  df-nv 28002  df-va 28005  df-ba 28006  df-sm 28007  df-0v 28008  df-nmcv 28010
This theorem is referenced by:  nvmdi  28058
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