Theorem elmapex 6671

Description: Eliminate antecedent for mapping theorems: domain can be taken to be a set. (Contributed by Stefan O'Rear, 8-Oct-2014.)

Assertion

Ref	Expression
elmapex	|- ( A e. ( B ^m C ) -> ( B e. _V /\ C e. _V ) )

Proof of Theorem elmapex

Dummy variables x f y are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		df-map 6652	. 2 |- ^m = ( x e. _V , y e. _V |-> { f | f : y --> x } )
2	1	elmpocl 6071	1 |- ( A e. ( B ^m C ) -> ( B e. _V /\ C e. _V ) )

Syntax hints:   -> wi 4   /\ wa 104   e. wcel 2148   {cab 2163   _Vcvv 2739   -->wf 5214  (class class class)co 5877   ^m cmap 6650

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 709  ax-5 1447  ax-7 1448  ax-gen 1449  ax-ie1 1493  ax-ie2 1494  ax-8 1504  ax-10 1505  ax-11 1506  ax-i12 1507  ax-bndl 1509  ax-4 1510  ax-17 1526  ax-i9 1530  ax-ial 1534  ax-i5r 1535  ax-14 2151  ax-ext 2159  ax-sep 4123  ax-pow 4176  ax-pr 4211

This theorem depends on definitions:  df-bi 117  df-3an 980  df-tru 1356  df-nf 1461  df-sb 1763  df-eu 2029  df-mo 2030  df-clab 2164  df-cleq 2170  df-clel 2173  df-nfc 2308  df-ral 2460  df-rex 2461  df-v 2741  df-un 3135  df-in 3137  df-ss 3144  df-pw 3579  df-sn 3600  df-pr 3601  df-op 3603  df-uni 3812  df-br 4006  df-opab 4067  df-id 4295  df-xp 4634  df-rel 4635  df-cnv 4636  df-co 4637  df-dm 4638  df-iota 5180  df-fun 5220  df-fv 5226  df-ov 5880  df-oprab 5881  df-mpo 5882  df-map 6652

This theorem is referenced by:  elmapi  6672  elmapssres  6675  mapsspm  6684  mapss  6693