MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  qusaddflem Structured version   Visualization version   GIF version

Theorem qusaddflem 16642
Description: The operation of a quotient structure is a function. (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
qusaddflem (𝜑 :((𝑉 / ) × (𝑉 / ))⟶(𝑉 / ))
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   ,𝑎,𝑏,𝑝,𝑞
Allowed substitution hints:   𝑅(𝑎,𝑏)   (𝑥)   · (𝑎,𝑏)   𝑈(𝑥,𝑞,𝑝,𝑎,𝑏)   𝐹(𝑥)   𝑍(𝑥,𝑞,𝑝,𝑎,𝑏)

Proof of Theorem qusaddflem
StepHypRef Expression
1 qusaddf.u . . 3 (𝜑𝑈 = (𝑅 /s ))
2 qusaddf.v . . 3 (𝜑𝑉 = (Base‘𝑅))
3 qusaddflem.f . . 3 𝐹 = (𝑥𝑉 ↦ [𝑥] )
4 qusaddf.r . . . 4 (𝜑 Er 𝑉)
5 fvex 6543 . . . . 5 (Base‘𝑅) ∈ V
62, 5syl6eqel 2889 . . . 4 (𝜑𝑉 ∈ V)
7 erex 8154 . . . 4 ( Er 𝑉 → (𝑉 ∈ V → ∈ V))
84, 6, 7sylc 65 . . 3 (𝜑 ∈ V)
9 qusaddf.z . . 3 (𝜑𝑅𝑍)
101, 2, 3, 8, 9quslem 16633 . 2 (𝜑𝐹:𝑉onto→(𝑉 / ))
11 qusaddf.c . . 3 ((𝜑 ∧ (𝑝𝑉𝑞𝑉)) → (𝑝 · 𝑞) ∈ 𝑉)
12 qusaddf.e . . 3 (𝜑 → ((𝑎 𝑝𝑏 𝑞) → (𝑎 · 𝑏) (𝑝 · 𝑞)))
134, 6, 3, 11, 12ercpbl 16639 . 2 ((𝜑 ∧ (𝑎𝑉𝑏𝑉) ∧ (𝑝𝑉𝑞𝑉)) → (((𝐹𝑎) = (𝐹𝑝) ∧ (𝐹𝑏) = (𝐹𝑞)) → (𝐹‘(𝑎 · 𝑏)) = (𝐹‘(𝑝 · 𝑞))))
14 qusaddflem.g . 2 (𝜑 = 𝑝𝑉 𝑞𝑉 {⟨⟨(𝐹𝑝), (𝐹𝑞)⟩, (𝐹‘(𝑝 · 𝑞))⟩})
1510, 13, 14, 11imasaddflem 16620 1 (𝜑 :((𝑉 / ) × (𝑉 / ))⟶(𝑉 / ))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 396   = wceq 1520  wcel 2079  Vcvv 3432  {csn 4466  cop 4472   ciun 4819   class class class wbr 4956  cmpt 5035   × cxp 5433  wf 6213  cfv 6217  (class class class)co 7007   Er wer 8127  [cec 8128   / cqs 8129  Basecbs 16300   /s cqus 16595
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1775  ax-4 1789  ax-5 1886  ax-6 1945  ax-7 1990  ax-8 2081  ax-9 2089  ax-10 2110  ax-11 2124  ax-12 2139  ax-13 2342  ax-ext 2767  ax-sep 5088  ax-nul 5095  ax-pow 5150  ax-pr 5214  ax-un 7310
This theorem depends on definitions:  df-bi 208  df-an 397  df-or 843  df-3an 1080  df-tru 1523  df-ex 1760  df-nf 1764  df-sb 2041  df-mo 2574  df-eu 2610  df-clab 2774  df-cleq 2786  df-clel 2861  df-nfc 2933  df-ne 2983  df-ral 3108  df-rex 3109  df-rab 3112  df-v 3434  df-sbc 3702  df-csb 3807  df-dif 3857  df-un 3859  df-in 3861  df-ss 3869  df-nul 4207  df-if 4376  df-pw 4449  df-sn 4467  df-pr 4469  df-op 4473  df-uni 4740  df-iun 4821  df-br 4957  df-opab 5019  df-mpt 5036  df-id 5340  df-xp 5441  df-rel 5442  df-cnv 5443  df-co 5444  df-dm 5445  df-rn 5446  df-res 5447  df-ima 5448  df-iota 6181  df-fun 6219  df-fn 6220  df-f 6221  df-fo 6223  df-fv 6225  df-ov 7010  df-er 8130  df-ec 8132  df-qs 8136
This theorem is referenced by:  qusaddf  16644  qusmulf  16646
  Copyright terms: Public domain W3C validator