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| Mirrors > Home > ILE Home > Th. List > fnmap | GIF version | ||
| Description: Set exponentiation has a universal domain. (Contributed by NM, 8-Dec-2003.) (Revised by Mario Carneiro, 8-Sep-2013.) |
| Ref | Expression |
|---|---|
| fnmap | ⊢ ↑𝑚 Fn (V × V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-map 6918 | . 2 ⊢ ↑𝑚 = (𝑥 ∈ V, 𝑦 ∈ V ↦ {𝑓 ∣ 𝑓:𝑦⟶𝑥}) | |
| 2 | vex 2824 | . . 3 ⊢ 𝑦 ∈ V | |
| 3 | vex 2824 | . . 3 ⊢ 𝑥 ∈ V | |
| 4 | mapex 6922 | . . 3 ⊢ ((𝑦 ∈ V ∧ 𝑥 ∈ V) → {𝑓 ∣ 𝑓:𝑦⟶𝑥} ∈ V) | |
| 5 | 2, 3, 4 | mp2an 430 | . 2 ⊢ {𝑓 ∣ 𝑓:𝑦⟶𝑥} ∈ V |
| 6 | 1, 5 | fnmpoi 6433 | 1 ⊢ ↑𝑚 Fn (V × V) |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2209 {cab 2224 Vcvv 2821 × cxp 4770 Fn wfn 5370 ⟶wf 5371 ↑𝑚 cmap 6916 |
| 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 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4247 ax-pow 4309 ax-pr 4344 ax-un 4576 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3714 df-pr 3715 df-op 3717 df-uni 3934 df-iun 4012 df-br 4129 df-opab 4191 df-mpt 4192 df-id 4436 df-xp 4778 df-rel 4779 df-cnv 4780 df-co 4781 df-dm 4782 df-rn 4783 df-res 4784 df-ima 4785 df-iota 5335 df-fun 5377 df-fn 5378 df-f 5379 df-fv 5383 df-oprab 6083 df-mpo 6084 df-1st 6368 df-2nd 6369 df-map 6918 |
| This theorem is referenced by: mapsnend 7093 mapsnen 7094 map1 7095 mapen 7140 mapdom1g 7141 mapxpen 7142 xpmapenlem 7143 mapunen 7145 2omapen 7313 hashfacen 11267 wrdexg 11298 omctfn 13317 prdsvallem 13604 ismhm 13751 mhmex 13752 prdsval 14156 rhmex 14447 fnpsr 15034 psrelbas 15049 psrplusgg 15052 psraddcl 15054 psr0cl 15055 psr0lid 15056 psrnegcl 15057 psrlinv 15058 psrgrp 15059 psr1clfi 15062 mplsubgfilemcl 15073 cnfval 15278 cnpfval 15279 cnpval 15282 ismet 15428 isxmet 15429 xmetunirn 15442 plyval 15816 pw1mapen 17009 |
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