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Theorem rnopab 5935
Description: The range of a class of ordered pairs. (Contributed by NM, 14-Aug-1995.) (Revised by Mario Carneiro, 4-Dec-2016.)
Assertion
Ref Expression
rnopab ran {⟨𝑥, 𝑦⟩ ∣ 𝜑} = {𝑦 ∣ ∃𝑥𝜑}
Distinct variable group:   𝑥,𝑦
Allowed substitution hints:   𝜑(𝑥, 𝑦)

Proof of Theorem rnopab
StepHypRef Expression
1 nfopab1 5174 . . 3 Ⅎ𝑥{⟨𝑥, 𝑦⟩ ∣ 𝜑}
2 nfopab2 5175 . . 3 Ⅎ𝑦{⟨𝑥, 𝑦⟩ ∣ 𝜑}
31, 2dfrnf 5931 . 2 ran {⟨𝑥, 𝑦⟩ ∣ 𝜑} = {𝑦 ∣ ∃𝑥 𝑥{⟨𝑥, 𝑦⟩ ∣ 𝜑}𝑦}
4 df-br 5103 . . . . 5 (𝑥{⟨𝑥, 𝑦⟩ ∣ 𝜑}𝑦 ↔ ⟨𝑥, 𝑦⟩ ∈ {⟨𝑥, 𝑦⟩ ∣ 𝜑})
5 opabidw 5497 . . . . 5 (⟨𝑥, 𝑦⟩ ∈ {⟨𝑥, 𝑦⟩ ∣ 𝜑} ↔ 𝜑)
64, 5bitri 278 . . . 4 (𝑥{⟨𝑥, 𝑦⟩ ∣ 𝜑}𝑦 ↔ 𝜑)
76exbii 1880 . . 3 (∃𝑥 𝑥{⟨𝑥, 𝑦⟩ ∣ 𝜑}𝑦 ↔ ∃𝑥𝜑)
87abbii 2827 . 2 {𝑦 ∣ ∃𝑥 𝑥{⟨𝑥, 𝑦⟩ ∣ 𝜑}𝑦} = {𝑦 ∣ ∃𝑥𝜑}
93, 8eqtri 2783 1 ran {⟨𝑥, 𝑦⟩ ∣ 𝜑} = {𝑦 ∣ ∃𝑥𝜑}
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   = wceq 1569  ∃wex 1811   ∈ wcel 2144  {cab 2738  ⟨cop 4834   class class class wbr 5102  {copab 5166  ran crn 5651
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1827  ax-4 1841  ax-5 1942  ax-6 1999  ax-7 2040  ax-8 2146  ax-9 2154  ax-10 2177  ax-11 2193  ax-12 2212  ax-ext 2732  ax-sep 5248  ax-pr 5390
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1572  df-fal 1582  df-ex 1812  df-nf 1816  df-sb 2099  df-clab 2739  df-cleq 2752  df-clel 2835  df-nfc 2909  df-rab 3413  df-v 3452  df-ss 3896  df-dif 4047  df-in 4091  df-un 4151  df-nul 4279  df-if 4482  df-sn 4585  df-pr 4587  df-op 4835  df-br 5103  df-opab 5167  df-cnv 5658  df-dm 5660  df-rn 5661
This theorem is used by:  rnopabss  5936  rnopab3  5937  rnmpt  5938  mptpreima  6239  rnoprab  7525  pwfir  9311  marypha2lem4  9433  hartogslem1  9539  rnttrcl  9726  axdc2lem  10529  abrexdomjm  33150  abrexexd  33152  lsmsnorb  33992  satfrnmapom  36221  rnmptsn  38351  abrexdom  38757  rncnvepres  39334  dfsuccl2  39495  imaopab  43378  tfsconcatrn  44437  modelaxreplem3  46063
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