Theorem imaexg 5115

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

Step	Hyp	Ref	Expression
1		imassrn 5112	. 2 |- ( A " B ) C_ ran A
2		rnexg 5022	. 2 |- ( A e. V -> ran A e. _V )
3		ssexg 4249	. 2 |- ( ( ( A " B ) C_ ran A /\ ran A e. _V ) -> ( A " B ) e. _V )
4	1, 2, 3	sylancr 414	1 |- ( A e. V -> ( A " B ) e. _V )

Syntax hints:   -> wi 4   e. wcel 2203   _Vcvv 2813   C_ wss 3211   ran crn 4750   "cima 4752

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 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2205  ax-14 2206  ax-ext 2214  ax-sep 4228  ax-pow 4287  ax-pr 4322  ax-un 4554

This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-nf 1510  df-sb 1812  df-eu 2083  df-mo 2084  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-ral 2525  df-rex 2526  df-v 2815  df-un 3215  df-in 3217  df-ss 3224  df-pw 3671  df-sn 3695  df-pr 3696  df-op 3698  df-uni 3915  df-br 4110  df-opab 4172  df-xp 4755  df-cnv 4757  df-dm 4759  df-rn 4760  df-res 4761  df-ima 4762

This theorem is referenced by:  imaex  5116  ecexg  6771  fopwdom  7089  isinfinf  7154  isunitd  14251