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Theorem psrbagf 14766
Description: A finite bag is a function. (Contributed by Mario Carneiro, 29-Dec-2014.) Remove a sethood antecedent. (Revised by SN, 30-Jul-2024.)
Hypothesis
Ref Expression
psrbag.d  |-  D  =  { f  e.  ( NN0  ^m  I )  |  ( `' f
" NN )  e. 
Fin }
Assertion
Ref Expression
psrbagf  |-  ( F  e.  D  ->  F : I --> NN0 )
Distinct variable groups:    f, F    f, I
Allowed substitution hint:    D( f)

Proof of Theorem psrbagf
StepHypRef Expression
1 psrbag.d . . 3  |-  D  =  { f  e.  ( NN0  ^m  I )  |  ( `' f
" NN )  e. 
Fin }
21eleq2i 2298 . 2  |-  ( F  e.  D  <->  F  e.  { f  e.  ( NN0 
^m  I )  |  ( `' f " NN )  e.  Fin } )
3 elrabi 2960 . . 3  |-  ( F  e.  { f  e.  ( NN0  ^m  I
)  |  ( `' f " NN )  e.  Fin }  ->  F  e.  ( NN0  ^m  I ) )
4 elmapi 6882 . . 3  |-  ( F  e.  ( NN0  ^m  I )  ->  F : I --> NN0 )
53, 4syl 14 . 2  |-  ( F  e.  { f  e.  ( NN0  ^m  I
)  |  ( `' f " NN )  e.  Fin }  ->  F : I --> NN0 )
62, 5sylbi 121 1  |-  ( F  e.  D  ->  F : I --> NN0 )
Colors of variables: wff set class
Syntax hints:    -> wi 4    = wceq 1398    e. wcel 2202   {crab 2515   `'ccnv 4730   "cima 4734   -->wf 5329  (class class class)co 6028    ^m cmap 6860   Fincfn 6952   NNcn 9202   NN0cn0 9461
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-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-rab 2520  df-v 2805  df-sbc 3033  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-br 4094  df-opab 4156  df-id 4396  df-xp 4737  df-rel 4738  df-cnv 4739  df-co 4740  df-dm 4741  df-rn 4742  df-iota 5293  df-fun 5335  df-fn 5336  df-f 5337  df-fv 5341  df-ov 6031  df-oprab 6032  df-mpo 6033  df-map 6862
This theorem is referenced by:  psrbaglesupp  14769  psrbaglecl  14771  psrbagcon  14772  psrbagconcl  14773  psrbagconf1o  14774
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