Theorem rnmpt2 5631

Description: The range of an operation given by the "maps to" notation. (Contributed by FL, 20-Jun-2011.)

Hypothesis

Ref	Expression
rngop.1	|- F = ( x e. A , y e. B |-> C )

Assertion

Ref	Expression
rnmpt2	|- ran F = { z | E. x e. A E. y e. B z = C }

Distinct variable groups:   y, z, A   z, B   z, C   z, F   x, y, z

Allowed substitution hints:   A( x)   B( x, y)   C( x, y)   F( x, y)

Proof of Theorem rnmpt2

Step	Hyp	Ref	Expression
1		rngop.1	. . . 4 |- F = ( x e. A , y e. B |-> C )
2		df-mpt2 5537	. . . 4 |- ( x e. A , y e. B |-> C ) = { <. <. x , y >. , z >. | ( ( x e. A /\ y e. B ) /\ z = C ) }
3	1, 2	eqtri 2101	. . 3 |- F = { <. <. x , y >. , z >. | ( ( x e. A /\ y e. B ) /\ z = C ) }
4	3	rneqi 4580	. 2 |- ran F = ran { <. <. x , y >. , z >. | ( ( x e. A /\ y e. B ) /\ z = C ) }
5		rnoprab2 5608	. 2 |- ran { <. <. x , y >. , z >. | ( ( x e. A /\ y e. B ) /\ z = C ) } = { z | E. x e. A E. y e. B z = C }
6	4, 5	eqtri 2101	1 |- ran F = { z | E. x e. A E. y e. B z = C }

Syntax hints:   /\ wa 102   = wceq 1284   e. wcel 1433   {cab 2067   E.wrex 2349   ran crn 4364   {coprab 5533   |-> cmpt2 5534

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 104  ax-ia2 105  ax-ia3 106  ax-io 662  ax-5 1376  ax-7 1377  ax-gen 1378  ax-ie1 1422  ax-ie2 1423  ax-8 1435  ax-10 1436  ax-11 1437  ax-i12 1438  ax-bndl 1439  ax-4 1440  ax-14 1445  ax-17 1459  ax-i9 1463  ax-ial 1467  ax-i5r 1468  ax-ext 2063  ax-sep 3896  ax-pow 3948  ax-pr 3964

This theorem depends on definitions:  df-bi 115  df-3an 921  df-tru 1287  df-nf 1390  df-sb 1686  df-eu 1944  df-mo 1945  df-clab 2068  df-cleq 2074  df-clel 2077  df-nfc 2208  df-rex 2354  df-v 2603  df-un 2977  df-in 2979  df-ss 2986  df-pw 3384  df-sn 3404  df-pr 3405  df-op 3407  df-br 3786  df-opab 3840  df-cnv 4371  df-dm 4373  df-rn 4374  df-oprab 5536  df-mpt2 5537

This theorem is referenced by:  elrnmpt2g  5633  elrnmpt2  5634  ralrnmpt2  5635  rexrnmpt2  5636