Theorem imaexg 5088

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 5085	. 2 |- ( A " B ) C_ ran A
2		rnexg 4995	. 2 |- ( A e. V -> ran A e. _V )
3		ssexg 4226	. 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 2200   _Vcvv 2800   C_ wss 3198   ran crn 4724   "cima 4726

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-13 2202  ax-14 2203  ax-ext 2211  ax-sep 4205  ax-pow 4262  ax-pr 4297  ax-un 4528

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-ral 2513  df-rex 2514  df-v 2802  df-un 3202  df-in 3204  df-ss 3211  df-pw 3652  df-sn 3673  df-pr 3674  df-op 3676  df-uni 3892  df-br 4087  df-opab 4149  df-xp 4729  df-cnv 4731  df-dm 4733  df-rn 4734  df-res 4735  df-ima 4736

This theorem is referenced by:  imaex  5089  ecexg  6701  fopwdom  7017  isinfinf  7079  isunitd  14110