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Theorem mptsuppdifd 6433
Description: The support of a function in maps-to notation with a class difference. (Contributed by AV, 28-May-2019.)
Hypotheses
Ref Expression
mptsuppdifd.f  |-  F  =  ( x  e.  A  |->  B )
mptsuppdifd.a  |-  ( ph  ->  A  e.  V )
mptsuppdifd.z  |-  ( ph  ->  Z  e.  W )
Assertion
Ref Expression
mptsuppdifd  |-  ( ph  ->  ( F supp  Z )  =  { x  e.  A  |  B  e.  ( _V  \  { Z } ) } )
Distinct variable groups:    x, A    x, Z
Allowed substitution hints:    ph( x)    B( x)    F( x)    V( x)    W( x)

Proof of Theorem mptsuppdifd
StepHypRef Expression
1 mptsuppdifd.f . . . . . 6  |-  F  =  ( x  e.  A  |->  B )
21funmpt2 5372 . . . . 5  |-  Fun  F
32a1i 9 . . . 4  |-  ( ph  ->  Fun  F )
43funfnd 5364 . . 3  |-  ( ph  ->  F  Fn  dom  F
)
5 mptsuppdifd.a . . . . 5  |-  ( ph  ->  A  e.  V )
65mptexd 5891 . . . 4  |-  ( ph  ->  ( x  e.  A  |->  B )  e.  _V )
71, 6eqeltrid 2318 . . 3  |-  ( ph  ->  F  e.  _V )
8 mptsuppdifd.z . . 3  |-  ( ph  ->  Z  e.  W )
9 suppimacnvfn 6424 . . 3  |-  ( ( F  Fn  dom  F  /\  F  e.  _V  /\  Z  e.  W )  ->  ( F supp  Z
)  =  ( `' F " ( _V 
\  { Z }
) ) )
104, 7, 8, 9syl3anc 1274 . 2  |-  ( ph  ->  ( F supp  Z )  =  ( `' F " ( _V  \  { Z } ) ) )
111mptpreima 5237 . 2  |-  ( `' F " ( _V 
\  { Z }
) )  =  {
x  e.  A  |  B  e.  ( _V  \  { Z } ) }
1210, 11eqtrdi 2280 1  |-  ( ph  ->  ( F supp  Z )  =  { x  e.  A  |  B  e.  ( _V  \  { Z } ) } )
Colors of variables: wff set class
Syntax hints:    -> wi 4    = wceq 1398    e. wcel 2202   {crab 2515   _Vcvv 2803    \ cdif 3198   {csn 3673    |-> cmpt 4155   `'ccnv 4730   dom cdm 4731   "cima 4734   Fun wfun 5327    Fn wfn 5328  (class class class)co 6028   supp csupp 6413
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-in1 619  ax-in2 620  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 2204  ax-14 2205  ax-ext 2213  ax-coll 4209  ax-sep 4212  ax-pow 4270  ax-pr 4305  ax-un 4536  ax-setind 4641
This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-ne 2404  df-ral 2516  df-rex 2517  df-reu 2518  df-rab 2520  df-v 2805  df-sbc 3033  df-csb 3129  df-dif 3203  df-un 3205  df-in 3207  df-ss 3214  df-pw 3658  df-sn 3679  df-pr 3680  df-op 3682  df-uni 3899  df-iun 3977  df-br 4094  df-opab 4156  df-mpt 4157  df-id 4396  df-xp 4737  df-rel 4738  df-cnv 4739  df-co 4740  df-dm 4741  df-rn 4742  df-res 4743  df-ima 4744  df-iota 5293  df-fun 5335  df-fn 5336  df-f 5337  df-f1 5338  df-fo 5339  df-f1o 5340  df-fv 5341  df-ov 6031  df-oprab 6032  df-mpo 6033  df-supp 6414
This theorem is referenced by:  mptsuppd  6434  suppssfvg  6441
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