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Theorem csbrng 5186
Description: Distribute proper substitution through the range of a class. (Contributed by Alan Sare, 10-Nov-2012.)
Assertion
Ref Expression
csbrng  |-  ( A  e.  V  ->  [_ A  /  x ]_ ran  B  =  ran  [_ A  /  x ]_ B )

Proof of Theorem csbrng
Dummy variables  w  y are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 csbabg 3186 . . 3  |-  ( A  e.  V  ->  [_ A  /  x ]_ { y  |  E. w <. w ,  y >.  e.  B }  =  { y  |  [. A  /  x ]. E. w <. w ,  y >.  e.  B } )
2 sbcexg 3083 . . . . 5  |-  ( A  e.  V  ->  ( [. A  /  x ]. E. w <. w ,  y >.  e.  B  <->  E. w [. A  /  x ]. <. w ,  y
>.  e.  B ) )
3 sbcel2g 3145 . . . . . 6  |-  ( A  e.  V  ->  ( [. A  /  x ]. <. w ,  y
>.  e.  B  <->  <. w ,  y >.  e.  [_ A  /  x ]_ B ) )
43exbidv 1871 . . . . 5  |-  ( A  e.  V  ->  ( E. w [. A  /  x ]. <. w ,  y
>.  e.  B  <->  E. w <. w ,  y >.  e.  [_ A  /  x ]_ B ) )
52, 4bitrd 188 . . . 4  |-  ( A  e.  V  ->  ( [. A  /  x ]. E. w <. w ,  y >.  e.  B  <->  E. w <. w ,  y
>.  e.  [_ A  /  x ]_ B ) )
65abbidv 2347 . . 3  |-  ( A  e.  V  ->  { y  |  [. A  /  x ]. E. w <. w ,  y >.  e.  B }  =  { y  |  E. w <. w ,  y >.  e.  [_ A  /  x ]_ B } )
71, 6eqtrd 2262 . 2  |-  ( A  e.  V  ->  [_ A  /  x ]_ { y  |  E. w <. w ,  y >.  e.  B }  =  { y  |  E. w <. w ,  y >.  e.  [_ A  /  x ]_ B } )
8 dfrn3 4908 . . 3  |-  ran  B  =  { y  |  E. w <. w ,  y
>.  e.  B }
98csbeq2i 3151 . 2  |-  [_ A  /  x ]_ ran  B  =  [_ A  /  x ]_ { y  |  E. w <. w ,  y
>.  e.  B }
10 dfrn3 4908 . 2  |-  ran  [_ A  /  x ]_ B  =  { y  |  E. w <. w ,  y
>.  e.  [_ A  /  x ]_ B }
117, 9, 103eqtr4g 2287 1  |-  ( A  e.  V  ->  [_ A  /  x ]_ ran  B  =  ran  [_ A  /  x ]_ B )
Colors of variables: wff set class
Syntax hints:    -> wi 4    = wceq 1395   E.wex 1538    e. wcel 2200   {cab 2215   [.wsbc 3028   [_csb 3124   <.cop 3669   ran crn 4717
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-v 2801  df-sbc 3029  df-csb 3125  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-cnv 4724  df-dm 4726  df-rn 4727
This theorem is referenced by:  sbcfg  5468
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