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Theorem assaass 20566
 Description: Left-associative property of an associative algebra. (Contributed by Mario Carneiro, 29-Dec-2014.)
Hypotheses
Ref Expression
isassa.v 𝑉 = (Base‘𝑊)
isassa.f 𝐹 = (Scalar‘𝑊)
isassa.b 𝐵 = (Base‘𝐹)
isassa.s · = ( ·𝑠𝑊)
isassa.t × = (.r𝑊)
Assertion
Ref Expression
assaass ((𝑊 ∈ AssAlg ∧ (𝐴𝐵𝑋𝑉𝑌𝑉)) → ((𝐴 · 𝑋) × 𝑌) = (𝐴 · (𝑋 × 𝑌)))

Proof of Theorem assaass
StepHypRef Expression
1 isassa.v . . 3 𝑉 = (Base‘𝑊)
2 isassa.f . . 3 𝐹 = (Scalar‘𝑊)
3 isassa.b . . 3 𝐵 = (Base‘𝐹)
4 isassa.s . . 3 · = ( ·𝑠𝑊)
5 isassa.t . . 3 × = (.r𝑊)
61, 2, 3, 4, 5assalem 20565 . 2 ((𝑊 ∈ AssAlg ∧ (𝐴𝐵𝑋𝑉𝑌𝑉)) → (((𝐴 · 𝑋) × 𝑌) = (𝐴 · (𝑋 × 𝑌)) ∧ (𝑋 × (𝐴 · 𝑌)) = (𝐴 · (𝑋 × 𝑌))))
76simpld 498 1 ((𝑊 ∈ AssAlg ∧ (𝐴𝐵𝑋𝑉𝑌𝑉)) → ((𝐴 · 𝑋) × 𝑌) = (𝐴 · (𝑋 × 𝑌)))
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ∧ wa 399   ∧ w3a 1084   = wceq 1538   ∈ wcel 2111  ‘cfv 6329  (class class class)co 7142  Basecbs 16492  .rcmulr 16575  Scalarcsca 16577   ·𝑠 cvsca 16578  AssAlgcasa 20558 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2113  ax-9 2121  ax-10 2142  ax-11 2158  ax-12 2175  ax-ext 2770  ax-nul 5177 This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3an 1086  df-tru 1541  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2598  df-eu 2629  df-clab 2777  df-cleq 2791  df-clel 2870  df-nfc 2938  df-ral 3111  df-rex 3112  df-rab 3115  df-v 3443  df-sbc 3722  df-dif 3885  df-un 3887  df-in 3889  df-ss 3899  df-nul 4246  df-sn 4528  df-pr 4530  df-op 4534  df-uni 4804  df-br 5034  df-iota 6288  df-fv 6337  df-ov 7145  df-assa 20561 This theorem is referenced by:  assa2ass  20571  issubassa3  20573  asclmul1  20591  ascldimulOLD  20594  assamulgscmlem2  20606  mplmon2mul  20773  matinv  21320
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