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Theorem elmapfn 6685
Description: A mapping is a function with the appropriate domain. (Contributed by AV, 6-Apr-2019.)
Assertion
Ref Expression
elmapfn  |-  ( A  e.  ( B  ^m  C )  ->  A  Fn  C )

Proof of Theorem elmapfn
StepHypRef Expression
1 elmapi 6684 . 2  |-  ( A  e.  ( B  ^m  C )  ->  A : C --> B )
2 ffn 5377 . 2  |-  ( A : C --> B  ->  A  Fn  C )
31, 2syl 14 1  |-  ( A  e.  ( B  ^m  C )  ->  A  Fn  C )
Colors of variables: wff set class
Syntax hints:    -> wi 4    e. wcel 2158    Fn wfn 5223   -->wf 5224  (class class class)co 5888    ^m cmap 6662
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 615  ax-in2 616  ax-io 710  ax-5 1457  ax-7 1458  ax-gen 1459  ax-ie1 1503  ax-ie2 1504  ax-8 1514  ax-10 1515  ax-11 1516  ax-i12 1517  ax-bndl 1519  ax-4 1520  ax-17 1536  ax-i9 1540  ax-ial 1544  ax-i5r 1545  ax-13 2160  ax-14 2161  ax-ext 2169  ax-sep 4133  ax-pow 4186  ax-pr 4221  ax-un 4445  ax-setind 4548
This theorem depends on definitions:  df-bi 117  df-3an 981  df-tru 1366  df-fal 1369  df-nf 1471  df-sb 1773  df-eu 2039  df-mo 2040  df-clab 2174  df-cleq 2180  df-clel 2183  df-nfc 2318  df-ne 2358  df-ral 2470  df-rex 2471  df-v 2751  df-sbc 2975  df-dif 3143  df-un 3145  df-in 3147  df-ss 3154  df-pw 3589  df-sn 3610  df-pr 3611  df-op 3613  df-uni 3822  df-br 4016  df-opab 4077  df-id 4305  df-xp 4644  df-rel 4645  df-cnv 4646  df-co 4647  df-dm 4648  df-rn 4649  df-iota 5190  df-fun 5230  df-fn 5231  df-f 5232  df-fv 5236  df-ov 5891  df-oprab 5892  df-mpo 5893  df-map 6664
This theorem is referenced by:  mapxpen  6862  peano4nninf  15052
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