Users' Mathboxes Mathbox for Peter Mazsa < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  elec1cnvres Structured version   Visualization version   GIF version

Theorem elec1cnvres 39398
Description: Elementhood in the converse restricted coset of 𝐵. (Contributed by Peter Mazsa, 21-Sep-2018.)
Assertion
Ref Expression
elec1cnvres (𝐵 ∈ 𝑉 → (𝐶 ∈ [𝐵]◡(𝑅 ↾ 𝐴) ↔ (𝐶 ∈ 𝐴 ∧ 𝐶𝑅𝐵)))

Proof of Theorem elec1cnvres
StepHypRef Expression
1 relcnv 6111 . . 3 Rel ◡(𝑅 ↾ 𝐴)
2 relelec 8790 . . 3 (Rel ◡(𝑅 ↾ 𝐴) → (𝐶 ∈ [𝐵]◡(𝑅 ↾ 𝐴) ↔ 𝐵◡(𝑅 ↾ 𝐴)𝐶))
31, 2ax-mp 5 . 2 (𝐶 ∈ [𝐵]◡(𝑅 ↾ 𝐴) ↔ 𝐵◡(𝑅 ↾ 𝐴)𝐶)
4 br1cnvres 39397 . 2 (𝐵 ∈ 𝑉 → (𝐵◡(𝑅 ↾ 𝐴)𝐶 ↔ (𝐶 ∈ 𝐴 ∧ 𝐶𝑅𝐵)))
53, 4bitrid 286 1 (𝐵 ∈ 𝑉 → (𝐶 ∈ [𝐵]◡(𝑅 ↾ 𝐴) ↔ (𝐶 ∈ 𝐴 ∧ 𝐶𝑅𝐵)))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   ↔ wb 209   ∧ wa 401   ∈ wcel 2147   class class class wbr 5106  ◡ccnv 5654   ↾ cres 5657  Rel wrel 5660  [cec 8740
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 1945  ax-6 2002  ax-7 2043  ax-8 2149  ax-9 2157  ax-ext 2735  ax-sep 5252  ax-pr 5395
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 2102  df-clab 2742  df-cleq 2755  df-clel 2839  df-ral 3081  df-rex 3091  df-rab 3417  df-v 3456  df-ss 3901  df-dif 4050  df-in 4094  df-un 4154  df-nul 4282  df-if 4486  df-sn 4589  df-pr 4591  df-op 4839  df-br 5107  df-opab 5171  df-xp 5661  df-rel 5662  df-cnv 5663  df-dm 5665  df-rn 5666  df-res 5667  df-ima 5668  df-ec 8744
This theorem is used by:  ec1cnvres  39399
  Copyright terms: Public domain W3C validator