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

Theorem brco 5813
Description: Binary relation on a composition. (Contributed by NM, 21-Sep-2004.) (Revised by Mario Carneiro, 24-Feb-2015.)
Hypotheses
Ref Expression
opelco.1 𝐴 ∈ V
opelco.2 𝐵 ∈ V
Assertion
Ref Expression
brco (𝐴(𝐶𝐷)𝐵 ↔ ∃𝑥(𝐴𝐷𝑥𝑥𝐶𝐵))
Distinct variable groups:   𝑥,𝐴   𝑥,𝐵   𝑥,𝐶   𝑥,𝐷

Proof of Theorem brco
StepHypRef Expression
1 opelco.1 . 2 𝐴 ∈ V
2 opelco.2 . 2 𝐵 ∈ V
3 brcog 5809 . 2 ((𝐴 ∈ V ∧ 𝐵 ∈ V) → (𝐴(𝐶𝐷)𝐵 ↔ ∃𝑥(𝐴𝐷𝑥𝑥𝐶𝐵)))
41, 2, 3mp2an 692 1 (𝐴(𝐶𝐷)𝐵 ↔ ∃𝑥(𝐴𝐷𝑥𝑥𝐶𝐵))
Colors of variables: wff setvar class
Syntax hints:  wb 206  wa 395  wex 1779  wcel 2109  Vcvv 3436   class class class wbr 5092  ccom 5623
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-ext 2701  ax-sep 5235  ax-nul 5245  ax-pr 5371
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-sb 2066  df-clab 2708  df-cleq 2721  df-clel 2803  df-rab 3395  df-v 3438  df-dif 3906  df-un 3908  df-ss 3920  df-nul 4285  df-if 4477  df-sn 4578  df-pr 4580  df-op 4584  df-br 5093  df-opab 5155  df-co 5628
This theorem is referenced by:  opelco  5814  cnvco  5828  cotrg  6060  resco  6199  imaco  6200  rnco  6201  coass  6214  dfpo2  6244  dffv2  6918  foeqcnvco  7237  f1eqcocnv  7238  ttrclss  9616  rtrclreclem3  14967  imasleval  17445  ustuqtop4  24130  metustexhalf  24442  dftr6  35728  coep  35729  coepr  35730  brtxp  35858  pprodss4v  35862  brpprod  35863  sscoid  35891  elfuns  35893  brimg  35915  brapply  35916  brcup  35917  brcap  35918  brsuccf  35919  funpartlem  35920  brrestrict  35927  dfrecs2  35928  dfrdg4  35929  cnvssco  43583  brpermmodel  44981  xpco2  48845
  Copyright terms: Public domain W3C validator