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

Theorem brco 5825
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 5821 . 2 ((𝐴 ∈ V ∧ 𝐵 ∈ V) → (𝐴(𝐶𝐷)𝐵 ↔ ∃𝑥(𝐴𝐷𝑥𝑥𝐶𝐵)))
41, 2, 3mp2an 693 1 (𝐴(𝐶𝐷)𝐵 ↔ ∃𝑥(𝐴𝐷𝑥𝑥𝐶𝐵))
Colors of variables: wff setvar class
Syntax hints:  wb 206  wa 395  wex 1781  wcel 2114  Vcvv 3429   class class class wbr 5085  ccom 5635
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 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-ext 2708  ax-sep 5231  ax-pr 5375
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-sb 2069  df-clab 2715  df-cleq 2728  df-clel 2811  df-rab 3390  df-v 3431  df-dif 3892  df-un 3894  df-in 3896  df-ss 3906  df-nul 4274  df-if 4467  df-sn 4568  df-pr 4570  df-op 4574  df-br 5086  df-opab 5148  df-co 5640
This theorem is referenced by:  opelco  5826  cnvco  5840  cotrg  6074  resco  6214  imaco  6215  rnco  6216  rncoOLD  6217  coass  6230  dfpo2  6260  dffv2  6935  foeqcnvco  7255  f1eqcocnv  7256  ttrclss  9641  rtrclreclem3  15022  imasleval  17505  ustuqtop4  24209  metustexhalf  24521  dftr6  35933  coep  35934  coepr  35935  brtxp  36060  pprodss4v  36064  brpprod  36065  sscoid  36093  elfuns  36095  brimg  36117  brapply  36118  brcup  36119  brcap  36120  brsuccf  36122  funpartlem  36124  brrestrict  36131  dfrecs2  36132  dfrdg4  36133  cnvssco  44033  brpermmodel  45430  xpco2  49332
  Copyright terms: Public domain W3C validator