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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 6814 | . 2 ⊢ ↑𝑚 = (𝑥 ∈ V, 𝑦 ∈ V ↦ {𝑓 ∣ 𝑓:𝑦⟶𝑥}) | |
| 2 | vex 2803 | . . 3 ⊢ 𝑦 ∈ V | |
| 3 | vex 2803 | . . 3 ⊢ 𝑥 ∈ V | |
| 4 | mapex 6818 | . . 3 ⊢ ((𝑦 ∈ V ∧ 𝑥 ∈ V) → {𝑓 ∣ 𝑓:𝑦⟶𝑥} ∈ V) | |
| 5 | 2, 3, 4 | mp2an 426 | . 2 ⊢ {𝑓 ∣ 𝑓:𝑦⟶𝑥} ∈ V |
| 6 | 1, 5 | fnmpoi 6363 | 1 ⊢ ↑𝑚 Fn (V × V) |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2200 {cab 2215 Vcvv 2800 × cxp 4721 Fn wfn 5319 ⟶wf 5320 ↑𝑚 cmap 6812 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4205 ax-pow 4262 ax-pr 4297 ax-un 4528 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-rab 2517 df-v 2802 df-sbc 3030 df-csb 3126 df-un 3202 df-in 3204 df-ss 3211 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-iun 3970 df-br 4087 df-opab 4149 df-mpt 4150 df-id 4388 df-xp 4729 df-rel 4730 df-cnv 4731 df-co 4732 df-dm 4733 df-rn 4734 df-res 4735 df-ima 4736 df-iota 5284 df-fun 5326 df-fn 5327 df-f 5328 df-fv 5332 df-oprab 6017 df-mpo 6018 df-1st 6298 df-2nd 6299 df-map 6814 |
| This theorem is referenced by: mapsnen 6981 map1 6982 mapen 7027 mapdom1g 7028 mapxpen 7029 xpmapenlem 7030 hashfacen 11093 wrdexg 11117 omctfn 13057 prdsvallem 13348 prdsval 13349 ismhm 13537 mhmex 13538 rhmex 14164 fnpsr 14674 psrelbas 14682 psrplusgg 14685 psraddcl 14687 psr0cl 14688 psr0lid 14689 psrnegcl 14690 psrlinv 14691 psrgrp 14692 psr1clfi 14695 mplsubgfilemcl 14706 cnfval 14911 cnpfval 14912 cnpval 14915 ismet 15061 isxmet 15062 xmetunirn 15075 plyval 15449 2omapen 16545 pw1mapen 16547 |
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