Users' Mathboxes Mathbox for Peter Mazsa < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  brcnvepres Structured version   Visualization version   GIF version

Theorem brcnvepres 38584
Description: Restricted converse epsilon binary relation. (Contributed by Peter Mazsa, 10-Feb-2018.)
Assertion
Ref Expression
brcnvepres ((𝐵𝑉𝐶𝑊) → (𝐵( E ↾ 𝐴)𝐶 ↔ (𝐵𝐴𝐶𝐵)))

Proof of Theorem brcnvepres
StepHypRef Expression
1 brres 5943 . 2 (𝐶𝑊 → (𝐵( E ↾ 𝐴)𝐶 ↔ (𝐵𝐴𝐵 E 𝐶)))
2 brcnvep 38582 . . 3 (𝐵𝑉 → (𝐵 E 𝐶𝐶𝐵))
32anbi2d 631 . 2 (𝐵𝑉 → ((𝐵𝐴𝐵 E 𝐶) ↔ (𝐵𝐴𝐶𝐵)))
41, 3sylan9bbr 510 1 ((𝐵𝑉𝐶𝑊) → (𝐵( E ↾ 𝐴)𝐶 ↔ (𝐵𝐴𝐶𝐵)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 206  wa 395  wcel 2114   class class class wbr 5086   E cep 5521  ccnv 5621  cres 5624
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 2709  ax-sep 5231  ax-pr 5368
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 2716  df-cleq 2729  df-clel 2812  df-ne 2934  df-ral 3053  df-rex 3063  df-rab 3391  df-v 3432  df-dif 3893  df-un 3895  df-in 3897  df-ss 3907  df-nul 4275  df-if 4468  df-sn 4569  df-pr 4571  df-op 4575  df-br 5087  df-opab 5149  df-eprel 5522  df-xp 5628  df-rel 5629  df-cnv 5630  df-res 5634
This theorem is referenced by:  dfeldisj3  39123  dfeldisj4  39124
  Copyright terms: Public domain W3C validator