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Theorem psrbagf 14683
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 2959 . . 3  |-  ( F  e.  { f  e.  ( NN0  ^m  I
)  |  ( `' f " NN )  e.  Fin }  ->  F  e.  ( NN0  ^m  I ) )
4 elmapi 6838 . . 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 1397    e. wcel 2202   {crab 2514   `'ccnv 4724   "cima 4728   -->wf 5322  (class class class)co 6017    ^m cmap 6816   Fincfn 6908   NNcn 9142   NN0cn0 9401
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 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-13 2204  ax-14 2205  ax-ext 2213  ax-sep 4207  ax-pow 4264  ax-pr 4299  ax-un 4530  ax-setind 4635
This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-fal 1403  df-nf 1509  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ne 2403  df-ral 2515  df-rex 2516  df-rab 2519  df-v 2804  df-sbc 3032  df-dif 3202  df-un 3204  df-in 3206  df-ss 3213  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-br 4089  df-opab 4151  df-id 4390  df-xp 4731  df-rel 4732  df-cnv 4733  df-co 4734  df-dm 4735  df-rn 4736  df-iota 5286  df-fun 5328  df-fn 5329  df-f 5330  df-fv 5334  df-ov 6020  df-oprab 6021  df-mpo 6022  df-map 6818
This theorem is referenced by: (None)
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