Theorem imaexg 5121

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 5118	. 2 |- ( A " B ) C_ ran A
2		rnexg 5028	. 2 |- ( A e. V -> ran A e. _V )
3		ssexg 4255	. 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 2205   _Vcvv 2815   C_ wss 3214   ran crn 4756   "cima 4758

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 2207  ax-14 2208  ax-ext 2216  ax-sep 4234  ax-pow 4293  ax-pr 4328  ax-un 4560

This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-nf 1510  df-sb 1812  df-eu 2085  df-mo 2086  df-clab 2221  df-cleq 2227  df-clel 2230  df-nfc 2375  df-ral 2527  df-rex 2528  df-v 2817  df-un 3218  df-in 3220  df-ss 3227  df-pw 3677  df-sn 3701  df-pr 3702  df-op 3704  df-uni 3921  df-br 4116  df-opab 4178  df-xp 4761  df-cnv 4763  df-dm 4765  df-rn 4766  df-res 4767  df-ima 4768

This theorem is referenced by:  imaex  5122  ecexg  6785  fopwdom  7103  isinfinf  7168  ballotfilemrval  13210  isunitd  14356