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Theorem cnvepima 39460
Description: The image of converse epsilon. (Contributed by Peter Mazsa, 22-Mar-2023.)
Assertion
Ref Expression
cnvepima (𝐴 ∈ 𝑉 → (◡ E “ 𝐴) = ∪ 𝐴)

Proof of Theorem cnvepima
StepHypRef Expression
1 cnvepresex 39459 . . 3 (𝐴 ∈ 𝑉 → (◡ E ↾ 𝐴) ∈ V)
2 uniqs 8819 . . 3 ((◡ E ↾ 𝐴) ∈ V → ∪ (𝐴 / ◡ E ) = (◡ E “ 𝐴))
31, 2syl 18 . 2 (𝐴 ∈ 𝑉 → ∪ (𝐴 / ◡ E ) = (◡ E “ 𝐴))
4 qsid 8827 . . 3 (𝐴 / ◡ E ) = 𝐴
54unieqi 4882 . 2 ∪ (𝐴 / ◡ E ) = ∪ 𝐴
63, 5eqtr3di 2813 1 (𝐴 ∈ 𝑉 → (◡ E “ 𝐴) = ∪ 𝐴)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   = wceq 1570   ∈ wcel 2147  Vcvv 3454  ∪ cuni 4870   E cep 5554  ◡ccnv 5654   ↾ cres 5657   “ cima 5658   / cqs 8741
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-10 2180  ax-11 2197  ax-12 2216  ax-ext 2735  ax-rep 5235  ax-sep 5252  ax-pow 5331  ax-pr 5395  ax-un 7772
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-nf 1817  df-sb 2102  df-mo 2567  df-clab 2742  df-cleq 2755  df-clel 2839  df-ne 2960  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-pw 4562  df-sn 4589  df-pr 4591  df-op 4839  df-uni 4871  df-iun 4956  df-br 5107  df-opab 5171  df-eprel 5555  df-xp 5661  df-rel 5662  df-cnv 5663  df-dm 5665  df-rn 5666  df-res 5667  df-ima 5668  df-ec 8744  df-qs 8748
This theorem is used by: (None)
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