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Theorem opabex 3601
Description: Existence of a function expressed as class of ordered pairs.
Hypotheses
Ref Expression
opabex.1 |- A e. V
opabex.2 |- (x e. A -> E*yph)
Assertion
Ref Expression
opabex |- {<.x, y>. | (x e. A /\ ph)} e. V
Distinct variable group:   x,y,A

Proof of Theorem opabex
StepHypRef Expression
1 funopab 3540 . . 3 |- (Fun {<.x, y>. | (x e. A /\ ph)} <-> A.xE*y(x e. A /\ ph))
2 opabex.2 . . . 4 |- (x e. A -> E*yph)
3 moanimv 1427 . . . 4 |- (E*y(x e. A /\ ph) <-> (x e. A -> E*yph))
42, 3mpbir 190 . . 3 |- E*y(x e. A /\ ph)
51, 4mpgbir 986 . 2 |- Fun {<.x, y>. | (x e. A /\ ph)}
6 opabex.1 . . 3 |- A e. V
7 dmopabss 3316 . . 3 |- dom {<.x, y>. | (x e. A /\ ph)} (_ A
86, 7ssexi 2715 . 2 |- dom {<.x, y>. | (x e. A /\ ph)} e. V
9 funex 3600 . 2 |- ((Fun {<.x, y>. | (x e. A /\ ph)} /\ dom {<.x, y>. | (x e. A /\ ph)} e. V) -> {<.x, y>. | (x e. A /\ ph)} e. V)
105, 8, 9mp2an 696 1 |- {<.x, y>. | (x e. A /\ ph)} e. V
Colors of variables: wff set class
Syntax hints:   -> wi 3   /\ wa 223   e. wcel 956  E*wmo 1379  Vcvv 1807  {copab 2661  dom cdm 3165  Fun wfun 3171
This theorem is referenced by:  opabex2 3602
This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7  ax-7 960  ax-gen 961  ax-8 962  ax-9 963  ax-10 964  ax-11 965  ax-12 966  ax-13 967  ax-14 968  ax-17 969  ax-4 971  ax-5o 973  ax-6o 976  ax-9o 1121  ax-10o 1138  ax-16 1208  ax-11o 1216  ax-ext 1457  ax-rep 2688  ax-sep 2698  ax-pow 2737  ax-pr 2774  ax-un 2861
This theorem depends on definitions:  df-bi 147  df-or 224  df-an 225  df-ex 979  df-sb 1170  df-eu 1380  df-mo 1381  df-clab 1462  df-cleq 1467  df-clel 1470  df-ne 1584  df-rex 1647  df-v 1808  df-dif 2045  df-un 2046  df-in 2047  df-ss 2049  df-nul 2277  df-pw 2398  df-sn 2408  df-pr 2409  df-op 2412  df-uni 2499  df-br 2615  df-opab 2662  df-id 2830  df-xp 3179  df-rel 3180  df-cnv 3181  df-co 3182  df-dm 3183  df-rn 3184  df-res 3185  df-ima 3186  df-fun 3187  df-fn 3188
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