Theorem elmapex 6937

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 6918	. 2 |- ^m = ( x e. _V , y e. _V |-> { f | f : y --> x } )
2	1	elmpocl 6278	1 |- ( A e. ( B ^m C ) -> ( B e. _V /\ C e. _V ) )

Syntax hints:   -> wi 4   /\ wa 104   e. wcel 2209   {cab 2224   _Vcvv 2821   -->wf 5371  (class class class)co 6079   ^m cmap 6916

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 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-sep 4247  ax-pow 4309  ax-pr 4344

This theorem depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ral 2533  df-rex 2534  df-v 2823  df-un 3224  df-in 3226  df-ss 3233  df-pw 3690  df-sn 3714  df-pr 3715  df-op 3717  df-uni 3934  df-br 4129  df-opab 4191  df-id 4436  df-xp 4778  df-rel 4779  df-cnv 4780  df-co 4781  df-dm 4782  df-iota 5335  df-fun 5377  df-fv 5383  df-ov 6082  df-oprab 6083  df-mpo 6084  df-map 6918

This theorem is referenced by:  elmapi  6938  elmapssres  6948  mapsspm  6957  mapss  6967