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Theorem assalem 21878
Description: The properties 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
assalem ((𝑊 ∈ AssAlg ∧ (𝐴𝐵𝑋𝑉𝑌𝑉)) → (((𝐴 · 𝑋) × 𝑌) = (𝐴 · (𝑋 × 𝑌)) ∧ (𝑋 × (𝐴 · 𝑌)) = (𝐴 · (𝑋 × 𝑌))))

Proof of Theorem assalem
Dummy variables 𝑥 𝑟 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 isassa.v . . . 4 𝑉 = (Base‘𝑊)
2 isassa.f . . . 4 𝐹 = (Scalar‘𝑊)
3 isassa.b . . . 4 𝐵 = (Base‘𝐹)
4 isassa.s . . . 4 · = ( ·𝑠𝑊)
5 isassa.t . . . 4 × = (.r𝑊)
61, 2, 3, 4, 5isassa 21877 . . 3 (𝑊 ∈ AssAlg ↔ ((𝑊 ∈ LMod ∧ 𝑊 ∈ Ring) ∧ ∀𝑟𝐵𝑥𝑉𝑦𝑉 (((𝑟 · 𝑥) × 𝑦) = (𝑟 · (𝑥 × 𝑦)) ∧ (𝑥 × (𝑟 · 𝑦)) = (𝑟 · (𝑥 × 𝑦)))))
76simprbi 496 . 2 (𝑊 ∈ AssAlg → ∀𝑟𝐵𝑥𝑉𝑦𝑉 (((𝑟 · 𝑥) × 𝑦) = (𝑟 · (𝑥 × 𝑦)) ∧ (𝑥 × (𝑟 · 𝑦)) = (𝑟 · (𝑥 × 𝑦))))
8 oveq1 7439 . . . . . 6 (𝑟 = 𝐴 → (𝑟 · 𝑥) = (𝐴 · 𝑥))
98oveq1d 7447 . . . . 5 (𝑟 = 𝐴 → ((𝑟 · 𝑥) × 𝑦) = ((𝐴 · 𝑥) × 𝑦))
10 oveq1 7439 . . . . 5 (𝑟 = 𝐴 → (𝑟 · (𝑥 × 𝑦)) = (𝐴 · (𝑥 × 𝑦)))
119, 10eqeq12d 2752 . . . 4 (𝑟 = 𝐴 → (((𝑟 · 𝑥) × 𝑦) = (𝑟 · (𝑥 × 𝑦)) ↔ ((𝐴 · 𝑥) × 𝑦) = (𝐴 · (𝑥 × 𝑦))))
12 oveq1 7439 . . . . . 6 (𝑟 = 𝐴 → (𝑟 · 𝑦) = (𝐴 · 𝑦))
1312oveq2d 7448 . . . . 5 (𝑟 = 𝐴 → (𝑥 × (𝑟 · 𝑦)) = (𝑥 × (𝐴 · 𝑦)))
1413, 10eqeq12d 2752 . . . 4 (𝑟 = 𝐴 → ((𝑥 × (𝑟 · 𝑦)) = (𝑟 · (𝑥 × 𝑦)) ↔ (𝑥 × (𝐴 · 𝑦)) = (𝐴 · (𝑥 × 𝑦))))
1511, 14anbi12d 632 . . 3 (𝑟 = 𝐴 → ((((𝑟 · 𝑥) × 𝑦) = (𝑟 · (𝑥 × 𝑦)) ∧ (𝑥 × (𝑟 · 𝑦)) = (𝑟 · (𝑥 × 𝑦))) ↔ (((𝐴 · 𝑥) × 𝑦) = (𝐴 · (𝑥 × 𝑦)) ∧ (𝑥 × (𝐴 · 𝑦)) = (𝐴 · (𝑥 × 𝑦)))))
16 oveq2 7440 . . . . . 6 (𝑥 = 𝑋 → (𝐴 · 𝑥) = (𝐴 · 𝑋))
1716oveq1d 7447 . . . . 5 (𝑥 = 𝑋 → ((𝐴 · 𝑥) × 𝑦) = ((𝐴 · 𝑋) × 𝑦))
18 oveq1 7439 . . . . . 6 (𝑥 = 𝑋 → (𝑥 × 𝑦) = (𝑋 × 𝑦))
1918oveq2d 7448 . . . . 5 (𝑥 = 𝑋 → (𝐴 · (𝑥 × 𝑦)) = (𝐴 · (𝑋 × 𝑦)))
2017, 19eqeq12d 2752 . . . 4 (𝑥 = 𝑋 → (((𝐴 · 𝑥) × 𝑦) = (𝐴 · (𝑥 × 𝑦)) ↔ ((𝐴 · 𝑋) × 𝑦) = (𝐴 · (𝑋 × 𝑦))))
21 oveq1 7439 . . . . 5 (𝑥 = 𝑋 → (𝑥 × (𝐴 · 𝑦)) = (𝑋 × (𝐴 · 𝑦)))
2221, 19eqeq12d 2752 . . . 4 (𝑥 = 𝑋 → ((𝑥 × (𝐴 · 𝑦)) = (𝐴 · (𝑥 × 𝑦)) ↔ (𝑋 × (𝐴 · 𝑦)) = (𝐴 · (𝑋 × 𝑦))))
2320, 22anbi12d 632 . . 3 (𝑥 = 𝑋 → ((((𝐴 · 𝑥) × 𝑦) = (𝐴 · (𝑥 × 𝑦)) ∧ (𝑥 × (𝐴 · 𝑦)) = (𝐴 · (𝑥 × 𝑦))) ↔ (((𝐴 · 𝑋) × 𝑦) = (𝐴 · (𝑋 × 𝑦)) ∧ (𝑋 × (𝐴 · 𝑦)) = (𝐴 · (𝑋 × 𝑦)))))
24 oveq2 7440 . . . . 5 (𝑦 = 𝑌 → ((𝐴 · 𝑋) × 𝑦) = ((𝐴 · 𝑋) × 𝑌))
25 oveq2 7440 . . . . . 6 (𝑦 = 𝑌 → (𝑋 × 𝑦) = (𝑋 × 𝑌))
2625oveq2d 7448 . . . . 5 (𝑦 = 𝑌 → (𝐴 · (𝑋 × 𝑦)) = (𝐴 · (𝑋 × 𝑌)))
2724, 26eqeq12d 2752 . . . 4 (𝑦 = 𝑌 → (((𝐴 · 𝑋) × 𝑦) = (𝐴 · (𝑋 × 𝑦)) ↔ ((𝐴 · 𝑋) × 𝑌) = (𝐴 · (𝑋 × 𝑌))))
28 oveq2 7440 . . . . . 6 (𝑦 = 𝑌 → (𝐴 · 𝑦) = (𝐴 · 𝑌))
2928oveq2d 7448 . . . . 5 (𝑦 = 𝑌 → (𝑋 × (𝐴 · 𝑦)) = (𝑋 × (𝐴 · 𝑌)))
3029, 26eqeq12d 2752 . . . 4 (𝑦 = 𝑌 → ((𝑋 × (𝐴 · 𝑦)) = (𝐴 · (𝑋 × 𝑦)) ↔ (𝑋 × (𝐴 · 𝑌)) = (𝐴 · (𝑋 × 𝑌))))
3127, 30anbi12d 632 . . 3 (𝑦 = 𝑌 → ((((𝐴 · 𝑋) × 𝑦) = (𝐴 · (𝑋 × 𝑦)) ∧ (𝑋 × (𝐴 · 𝑦)) = (𝐴 · (𝑋 × 𝑦))) ↔ (((𝐴 · 𝑋) × 𝑌) = (𝐴 · (𝑋 × 𝑌)) ∧ (𝑋 × (𝐴 · 𝑌)) = (𝐴 · (𝑋 × 𝑌)))))
3215, 23, 31rspc3v 3637 . 2 ((𝐴𝐵𝑋𝑉𝑌𝑉) → (∀𝑟𝐵𝑥𝑉𝑦𝑉 (((𝑟 · 𝑥) × 𝑦) = (𝑟 · (𝑥 × 𝑦)) ∧ (𝑥 × (𝑟 · 𝑦)) = (𝑟 · (𝑥 × 𝑦))) → (((𝐴 · 𝑋) × 𝑌) = (𝐴 · (𝑋 × 𝑌)) ∧ (𝑋 × (𝐴 · 𝑌)) = (𝐴 · (𝑋 × 𝑌)))))
337, 32mpan9 506 1 ((𝑊 ∈ AssAlg ∧ (𝐴𝐵𝑋𝑉𝑌𝑉)) → (((𝐴 · 𝑋) × 𝑌) = (𝐴 · (𝑋 × 𝑌)) ∧ (𝑋 × (𝐴 · 𝑌)) = (𝐴 · (𝑋 × 𝑌))))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395  w3a 1086   = wceq 1539  wcel 2107  wral 3060  cfv 6560  (class class class)co 7432  Basecbs 17248  .rcmulr 17299  Scalarcsca 17301   ·𝑠 cvsca 17302  Ringcrg 20231  LModclmod 20859  AssAlgcasa 21871
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1794  ax-4 1808  ax-5 1909  ax-6 1966  ax-7 2006  ax-8 2109  ax-9 2117  ax-ext 2707  ax-nul 5305
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1779  df-sb 2064  df-clab 2714  df-cleq 2728  df-clel 2815  df-ne 2940  df-ral 3061  df-rab 3436  df-v 3481  df-sbc 3788  df-dif 3953  df-un 3955  df-in 3957  df-ss 3967  df-nul 4333  df-if 4525  df-sn 4626  df-pr 4628  df-op 4632  df-uni 4907  df-br 5143  df-iota 6513  df-fv 6568  df-ov 7435  df-assa 21874
This theorem is referenced by:  assaass  21879  assaassr  21880
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