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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 6824 | . 2 ⊢ ↑𝑚 = (𝑥 ∈ V, 𝑦 ∈ V ↦ {𝑓 ∣ 𝑓:𝑦⟶𝑥}) | |
| 2 | vex 2804 | . . 3 ⊢ 𝑦 ∈ V | |
| 3 | vex 2804 | . . 3 ⊢ 𝑥 ∈ V | |
| 4 | mapex 6828 | . . 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 6373 | 1 ⊢ ↑𝑚 Fn (V × V) |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2201 {cab 2216 Vcvv 2801 × cxp 4725 Fn wfn 5323 ⟶wf 5324 ↑𝑚 cmap 6822 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2203 ax-14 2204 ax-ext 2212 ax-sep 4208 ax-pow 4266 ax-pr 4301 ax-un 4532 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1810 df-eu 2081 df-mo 2082 df-clab 2217 df-cleq 2223 df-clel 2226 df-nfc 2362 df-ral 2514 df-rex 2515 df-rab 2518 df-v 2803 df-sbc 3031 df-csb 3127 df-un 3203 df-in 3205 df-ss 3212 df-pw 3655 df-sn 3676 df-pr 3677 df-op 3679 df-uni 3895 df-iun 3973 df-br 4090 df-opab 4152 df-mpt 4153 df-id 4392 df-xp 4733 df-rel 4734 df-cnv 4735 df-co 4736 df-dm 4737 df-rn 4738 df-res 4739 df-ima 4740 df-iota 5288 df-fun 5330 df-fn 5331 df-f 5332 df-fv 5336 df-oprab 6027 df-mpo 6028 df-1st 6308 df-2nd 6309 df-map 6824 |
| This theorem is referenced by: mapsnen 6991 map1 6992 mapen 7037 mapdom1g 7038 mapxpen 7039 xpmapenlem 7040 hashfacen 11106 wrdexg 11133 omctfn 13087 prdsvallem 13378 prdsval 13379 ismhm 13567 mhmex 13568 rhmex 14195 fnpsr 14705 psrelbas 14718 psrplusgg 14721 psraddcl 14723 psr0cl 14724 psr0lid 14725 psrnegcl 14726 psrlinv 14727 psrgrp 14728 psr1clfi 14731 mplsubgfilemcl 14742 cnfval 14947 cnpfval 14948 cnpval 14951 ismet 15097 isxmet 15098 xmetunirn 15111 plyval 15485 2omapen 16655 pw1mapen 16657 |
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