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Theorem imaexg 5024
Description: The image of a set is a set. Theorem 3.17 of [Monk1] p. 39. (Contributed by NM, 24-Jul-1995.)
Assertion
Ref Expression
imaexg  |-  ( A  e.  V  ->  ( A " B )  e. 
_V )

Proof of Theorem imaexg
StepHypRef Expression
1 imassrn 5021 . 2  |-  ( A
" B )  C_  ran  A
2 rnexg 4932 . 2  |-  ( A  e.  V  ->  ran  A  e.  _V )
3 ssexg 4173 . 2  |-  ( ( ( A " B
)  C_  ran  A  /\  ran  A  e.  _V )  ->  ( A " B
)  e.  _V )
41, 2, 3sylancr 414 1  |-  ( A  e.  V  ->  ( A " B )  e. 
_V )
Colors of variables: wff set class
Syntax hints:    -> wi 4    e. wcel 2167   _Vcvv 2763    C_ wss 3157   ran crn 4665   "cima 4667
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 710  ax-5 1461  ax-7 1462  ax-gen 1463  ax-ie1 1507  ax-ie2 1508  ax-8 1518  ax-10 1519  ax-11 1520  ax-i12 1521  ax-bndl 1523  ax-4 1524  ax-17 1540  ax-i9 1544  ax-ial 1548  ax-i5r 1549  ax-13 2169  ax-14 2170  ax-ext 2178  ax-sep 4152  ax-pow 4208  ax-pr 4243  ax-un 4469
This theorem depends on definitions:  df-bi 117  df-3an 982  df-tru 1367  df-nf 1475  df-sb 1777  df-eu 2048  df-mo 2049  df-clab 2183  df-cleq 2189  df-clel 2192  df-nfc 2328  df-ral 2480  df-rex 2481  df-v 2765  df-un 3161  df-in 3163  df-ss 3170  df-pw 3608  df-sn 3629  df-pr 3630  df-op 3632  df-uni 3841  df-br 4035  df-opab 4096  df-xp 4670  df-cnv 4672  df-dm 4674  df-rn 4675  df-res 4676  df-ima 4677
This theorem is referenced by:  imaex  5025  ecexg  6605  fopwdom  6906  isinfinf  6967  isunitd  13738
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