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Theorem fnmap 6650
Description: Set exponentiation has a universal domain. (Contributed by NM, 8-Dec-2003.) (Revised by Mario Carneiro, 8-Sep-2013.)
Assertion
Ref Expression
fnmap 𝑚 Fn (V × V)

Proof of Theorem fnmap
Dummy variables 𝑥 𝑓 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 df-map 6645 . 2 𝑚 = (𝑥 ∈ V, 𝑦 ∈ V ↦ {𝑓𝑓:𝑦𝑥})
2 vex 2740 . . 3 𝑦 ∈ V
3 vex 2740 . . 3 𝑥 ∈ V
4 mapex 6649 . . 3 ((𝑦 ∈ V ∧ 𝑥 ∈ V) → {𝑓𝑓:𝑦𝑥} ∈ V)
52, 3, 4mp2an 426 . 2 {𝑓𝑓:𝑦𝑥} ∈ V
61, 5fnmpoi 6200 1 𝑚 Fn (V × V)
Colors of variables: wff set class
Syntax hints:  wcel 2148  {cab 2163  Vcvv 2737   × cxp 4622   Fn wfn 5208  wf 5209  𝑚 cmap 6643
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 709  ax-5 1447  ax-7 1448  ax-gen 1449  ax-ie1 1493  ax-ie2 1494  ax-8 1504  ax-10 1505  ax-11 1506  ax-i12 1507  ax-bndl 1509  ax-4 1510  ax-17 1526  ax-i9 1530  ax-ial 1534  ax-i5r 1535  ax-13 2150  ax-14 2151  ax-ext 2159  ax-sep 4119  ax-pow 4172  ax-pr 4207  ax-un 4431
This theorem depends on definitions:  df-bi 117  df-3an 980  df-tru 1356  df-nf 1461  df-sb 1763  df-eu 2029  df-mo 2030  df-clab 2164  df-cleq 2170  df-clel 2173  df-nfc 2308  df-ral 2460  df-rex 2461  df-rab 2464  df-v 2739  df-sbc 2963  df-csb 3058  df-un 3133  df-in 3135  df-ss 3142  df-pw 3577  df-sn 3598  df-pr 3599  df-op 3601  df-uni 3809  df-iun 3887  df-br 4002  df-opab 4063  df-mpt 4064  df-id 4291  df-xp 4630  df-rel 4631  df-cnv 4632  df-co 4633  df-dm 4634  df-rn 4635  df-res 4636  df-ima 4637  df-iota 5175  df-fun 5215  df-fn 5216  df-f 5217  df-fv 5221  df-oprab 5874  df-mpo 5875  df-1st 6136  df-2nd 6137  df-map 6645
This theorem is referenced by:  mapsnen  6806  map1  6807  mapen  6841  mapdom1g  6842  mapxpen  6843  xpmapenlem  6844  hashfacen  10807  omctfn  12434  ismhm  12781  cnfval  13476  cnpfval  13477  cnpval  13480  ismet  13626  isxmet  13627  xmetunirn  13640
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