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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 6897 | . 2 ⊢ ↑𝑚 = (𝑥 ∈ V, 𝑦 ∈ V ↦ {𝑓 ∣ 𝑓:𝑦⟶𝑥}) | |
| 2 | vex 2818 | . . 3 ⊢ 𝑦 ∈ V | |
| 3 | vex 2818 | . . 3 ⊢ 𝑥 ∈ V | |
| 4 | mapex 6901 | . . 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 6412 | 1 ⊢ ↑𝑚 Fn (V × V) |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2205 {cab 2220 Vcvv 2815 × cxp 4752 Fn wfn 5352 ⟶wf 5353 ↑𝑚 cmap 6895 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2207 ax-14 2208 ax-ext 2216 ax-sep 4233 ax-pow 4292 ax-pr 4327 ax-un 4559 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-rab 2531 df-v 2817 df-sbc 3046 df-csb 3142 df-un 3218 df-in 3220 df-ss 3227 df-pw 3676 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-iun 3998 df-br 4115 df-opab 4177 df-mpt 4178 df-id 4419 df-xp 4760 df-rel 4761 df-cnv 4762 df-co 4763 df-dm 4764 df-rn 4765 df-res 4766 df-ima 4767 df-iota 5317 df-fun 5359 df-fn 5360 df-f 5361 df-fv 5365 df-oprab 6062 df-mpo 6063 df-1st 6347 df-2nd 6348 df-map 6897 |
| This theorem is referenced by: mapsnend 7065 mapsnen 7066 map1 7067 mapen 7112 mapdom1g 7113 mapxpen 7114 xpmapenlem 7115 mapunen 7117 2omapen 7283 hashfacen 11236 wrdexg 11263 omctfn 13281 prdsvallem 13567 ismhm 13719 mhmex 13720 prdsval 14118 rhmex 14405 fnpsr 14944 psrelbas 14959 psrplusgg 14962 psraddcl 14964 psr0cl 14965 psr0lid 14966 psrnegcl 14967 psrlinv 14968 psrgrp 14969 psr1clfi 14972 mplsubgfilemcl 14983 cnfval 15188 cnpfval 15189 cnpval 15192 ismet 15338 isxmet 15339 xmetunirn 15352 plyval 15726 pw1mapen 16909 |
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