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Theorem imassrn 2611
Description: The image of a class is a subset of its range. Theorem 3.16(xi) of [Monk1] p. 39.
Assertion
Ref Expression
imassrn |- (A"B) (_ ran A

Proof of Theorem imassrn
StepHypRef Expression
1 pm3.27 260 . . . 4 |- ((x e. B /\ <.x, y>. e. A) -> <.x, y>. e. A)
2119.22i 723 . . 3 |- (E.x(x e. B /\ <.x, y>. e. A) -> E.x<.x, y>. e. A)
32ss2abi 1552 . 2 |- {y | E.x(x e. B /\ <.x, y>. e. A)} (_ {y | E.x<.x, y>. e. A}
4 dfima3 2605 . 2 |- (A"B) = {y | E.x(x e. B /\ <.x, y>. e. A)}
5 dfrn3 2524 . 2 |- ran A = {y | E.x<.x, y>. e. A}
63, 4, 53sstr4 1539 1 |- (A"B) (_ ran A
Colors of variables: wff set class
Syntax hints:   /\ wa 196  E.wex 678  {cab 1090   e. wcel 1092   (_ wss 1487  <.cop 1810  ran crn 2411  "cima 2413
This theorem is referenced by:  imaexg 2612  isofrlem 2939  f1oweOLD 2944  pw2en 3348  sbthlem2 3350  sbthlem3 3351  sbthlem5 3353  sbthlem6 3354  ssenen 3399  ssfi 3430  fiint 3445
This theorem was proved from axioms:  ax-1 3  ax-2 4  ax-3 5  ax-mp 6  ax-4 673  ax-5 674  ax-6 675  ax-7 676  ax-gen 677  ax-8 798  ax-9 799  ax-10 800  ax-11 801  ax-12 802  ax-13 804  ax-14 805  ax-16 922  ax-17 925  ax-ext 1074  ax-rep 1075  ax-pow 1077
This theorem depends on definitions:  df-bi 128  df-or 197  df-an 198  df-ex 679  df-sb 853  df-clab 1093  df-cleq 1097  df-clel 1099  df-rex 1206  df-v 1349  df-dif 1489  df-un 1490  df-in 1491  df-ss 1492  df-nul 1708  df-pw 1799  df-sn 1811  df-pr 1812  df-op 1815  df-br 2063  df-opab 2098  df-xp 2424  df-cnv 2426  df-dm 2428  df-rn 2429  df-res 2430  df-ima 2431
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