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

Theorem brcnvep 38979
Description: The converse of the binary epsilon relation. (Contributed by Peter Mazsa, 30-Jan-2018.)
Assertion
Ref Expression
brcnvep (𝐴𝑉 → (𝐴 E 𝐵𝐵𝐴))

Proof of Theorem brcnvep
StepHypRef Expression
1 rele 5816 . . 3 Rel E
21relbrcnv 6111 . 2 (𝐴 E 𝐵𝐵 E 𝐴)
3 epelg 5564 . 2 (𝐴𝑉 → (𝐵 E 𝐴𝐵𝐴))
42, 3bitrid 286 1 (𝐴𝑉 → (𝐴 E 𝐵𝐵𝐴))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wb 209  wcel 2146   class class class wbr 5111   E cep 5562  ccnv 5662
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2148  ax-9 2156  ax-ext 2737  ax-sep 5259  ax-pr 5406
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-sb 2100  df-clab 2744  df-cleq 2757  df-clel 2840  df-ne 2961  df-ral 3082  df-rex 3092  df-rab 3419  df-v 3459  df-dif 3909  df-un 3911  df-in 3913  df-ss 3923  df-nul 4287  df-if 4490  df-sn 4592  df-pr 4594  df-op 4598  df-br 5112  df-opab 5176  df-eprel 5563  df-xp 5669  df-rel 5670  df-cnv 5671
This theorem is used by:  brcnvepres  38981  eccnvepres  38995  eleccnvep  38996  cnvepres  39013  brxrncnvep  39095  dmcnvep  39097  ecxrncnvep  39118  rnxrncnvepres  39132  dfsucmap3  39172  coss2cnvepres  39217  dfcoels  39229  br1cossincnvepres  39249  br1cossxrncnvepres  39251  dfeldisj5  39522
  Copyright terms: Public domain W3C validator