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Theorem qusaddvallem 17598
Description: Value of an operation defined on a quotient structure. (Contributed by Mario Carneiro, 24-Feb-2015.)
Hypotheses
Ref Expression
qusaddf.u (𝜑𝑈 = (𝑅 /s ))
qusaddf.v (𝜑𝑉 = (Base‘𝑅))
qusaddf.r (𝜑 Er 𝑉)
qusaddf.z (𝜑𝑅𝑍)
qusaddf.e (𝜑 → ((𝑎 𝑝𝑏 𝑞) → (𝑎 · 𝑏) (𝑝 · 𝑞)))
qusaddf.c ((𝜑 ∧ (𝑝𝑉𝑞𝑉)) → (𝑝 · 𝑞) ∈ 𝑉)
qusaddflem.f 𝐹 = (𝑥𝑉 ↦ [𝑥] )
qusaddflem.g (𝜑 = 𝑝𝑉 𝑞𝑉 {⟨⟨(𝐹𝑝), (𝐹𝑞)⟩, (𝐹‘(𝑝 · 𝑞))⟩})
Assertion
Ref Expression
qusaddvallem ((𝜑𝑋𝑉𝑌𝑉) → ([𝑋] [𝑌] ) = [(𝑋 · 𝑌)] )
Distinct variable groups:   𝑎,𝑏,𝑝,𝑞,𝑥,   𝐹,𝑎,𝑏,𝑝,𝑞   𝜑,𝑎,𝑏,𝑝,𝑞,𝑥   𝑉,𝑎,𝑏,𝑝,𝑞,𝑥   𝑅,𝑝,𝑞,𝑥   · ,𝑝,𝑞,𝑥   𝑋,𝑝,𝑞,𝑥   ,𝑎,𝑏,𝑝,𝑞   𝑌,𝑝,𝑞,𝑥
Allowed substitution hints:   𝑅(𝑎,𝑏)   (𝑥)   · (𝑎,𝑏)   𝑈(𝑥,𝑞,𝑝,𝑎,𝑏)   𝐹(𝑥)   𝑋(𝑎,𝑏)   𝑌(𝑎,𝑏)   𝑍(𝑥,𝑞,𝑝,𝑎,𝑏)

Proof of Theorem qusaddvallem
StepHypRef Expression
1 qusaddf.u . . . 4 (𝜑𝑈 = (𝑅 /s ))
2 qusaddf.v . . . 4 (𝜑𝑉 = (Base‘𝑅))
3 qusaddflem.f . . . 4 𝐹 = (𝑥𝑉 ↦ [𝑥] )
4 qusaddf.r . . . . 5 (𝜑 Er 𝑉)
5 fvex 6920 . . . . . 6 (Base‘𝑅) ∈ V
62, 5eqeltrdi 2847 . . . . 5 (𝜑𝑉 ∈ V)
7 erex 8768 . . . . 5 ( Er 𝑉 → (𝑉 ∈ V → ∈ V))
84, 6, 7sylc 65 . . . 4 (𝜑 ∈ V)
9 qusaddf.z . . . 4 (𝜑𝑅𝑍)
101, 2, 3, 8, 9quslem 17590 . . 3 (𝜑𝐹:𝑉onto→(𝑉 / ))
11 qusaddf.c . . . 4 ((𝜑 ∧ (𝑝𝑉𝑞𝑉)) → (𝑝 · 𝑞) ∈ 𝑉)
12 qusaddf.e . . . 4 (𝜑 → ((𝑎 𝑝𝑏 𝑞) → (𝑎 · 𝑏) (𝑝 · 𝑞)))
134, 6, 3, 11, 12ercpbl 17596 . . 3 ((𝜑 ∧ (𝑎𝑉𝑏𝑉) ∧ (𝑝𝑉𝑞𝑉)) → (((𝐹𝑎) = (𝐹𝑝) ∧ (𝐹𝑏) = (𝐹𝑞)) → (𝐹‘(𝑎 · 𝑏)) = (𝐹‘(𝑝 · 𝑞))))
14 qusaddflem.g . . 3 (𝜑 = 𝑝𝑉 𝑞𝑉 {⟨⟨(𝐹𝑝), (𝐹𝑞)⟩, (𝐹‘(𝑝 · 𝑞))⟩})
1510, 13, 14imasaddvallem 17576 . 2 ((𝜑𝑋𝑉𝑌𝑉) → ((𝐹𝑋) (𝐹𝑌)) = (𝐹‘(𝑋 · 𝑌)))
1643ad2ant1 1132 . . . 4 ((𝜑𝑋𝑉𝑌𝑉) → Er 𝑉)
1763ad2ant1 1132 . . . 4 ((𝜑𝑋𝑉𝑌𝑉) → 𝑉 ∈ V)
1816, 17, 3divsfval 17594 . . 3 ((𝜑𝑋𝑉𝑌𝑉) → (𝐹𝑋) = [𝑋] )
1916, 17, 3divsfval 17594 . . 3 ((𝜑𝑋𝑉𝑌𝑉) → (𝐹𝑌) = [𝑌] )
2018, 19oveq12d 7449 . 2 ((𝜑𝑋𝑉𝑌𝑉) → ((𝐹𝑋) (𝐹𝑌)) = ([𝑋] [𝑌] ))
2116, 17, 3divsfval 17594 . 2 ((𝜑𝑋𝑉𝑌𝑉) → (𝐹‘(𝑋 · 𝑌)) = [(𝑋 · 𝑌)] )
2215, 20, 213eqtr3d 2783 1 ((𝜑𝑋𝑉𝑌𝑉) → ([𝑋] [𝑌] ) = [(𝑋 · 𝑌)] )
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395  w3a 1086   = wceq 1537  wcel 2106  Vcvv 3478  {csn 4631  cop 4637   ciun 4996   class class class wbr 5148  cmpt 5231  cfv 6563  (class class class)co 7431   Er wer 8741  [cec 8742   / cqs 8743  Basecbs 17245   /s cqus 17552
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1908  ax-6 1965  ax-7 2005  ax-8 2108  ax-9 2116  ax-10 2139  ax-11 2155  ax-12 2175  ax-ext 2706  ax-sep 5302  ax-nul 5312  ax-pow 5371  ax-pr 5438  ax-un 7754
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1540  df-fal 1550  df-ex 1777  df-nf 1781  df-sb 2063  df-mo 2538  df-eu 2567  df-clab 2713  df-cleq 2727  df-clel 2814  df-nfc 2890  df-ne 2939  df-ral 3060  df-rex 3069  df-rab 3434  df-v 3480  df-sbc 3792  df-csb 3909  df-dif 3966  df-un 3968  df-in 3970  df-ss 3980  df-nul 4340  df-if 4532  df-pw 4607  df-sn 4632  df-pr 4634  df-op 4638  df-uni 4913  df-iun 4998  df-br 5149  df-opab 5211  df-mpt 5232  df-id 5583  df-xp 5695  df-rel 5696  df-cnv 5697  df-co 5698  df-dm 5699  df-rn 5700  df-res 5701  df-ima 5702  df-iota 6516  df-fun 6565  df-fn 6566  df-f 6567  df-fo 6569  df-fv 6571  df-ov 7434  df-er 8744  df-ec 8746  df-qs 8750
This theorem is referenced by:  qusaddval  17600  qusmulval  17602
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