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Theorem reldmoprab 6088
Description: The domain of an operation class abstraction is a relation. (Contributed by NM, 17-Mar-1995.)
Assertion
Ref Expression
reldmoprab  |-  Rel  dom  {
<. <. x ,  y
>. ,  z >.  | 
ph }
Distinct variable group:    x, y, z
Allowed substitution hints:    ph( x, y, z)

Proof of Theorem reldmoprab
StepHypRef Expression
1 dmoprab 6084 . 2  |-  dom  { <. <. x ,  y
>. ,  z >.  | 
ph }  =  { <. x ,  y >.  |  E. z ph }
21relopabi 4846 1  |-  Rel  dom  {
<. <. x ,  y
>. ,  z >.  | 
ph }
Colors of variables: wff set class
Syntax hints:   E.wex 1538   dom cdm 4718   Rel wrel 4723   {coprab 6001
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-14 2203  ax-ext 2211  ax-sep 4201  ax-pow 4257  ax-pr 4292
This theorem depends on definitions:  df-bi 117  df-3an 1004  df-tru 1398  df-nf 1507  df-sb 1809  df-eu 2080  df-mo 2081  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ral 2513  df-rex 2514  df-v 2801  df-un 3201  df-in 3203  df-ss 3210  df-pw 3651  df-sn 3672  df-pr 3673  df-op 3675  df-br 4083  df-opab 4145  df-xp 4724  df-rel 4725  df-dm 4728  df-oprab 6004
This theorem is referenced by:  oprabss  6089  reldmmpo  6115  tposoprab  6424
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