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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 6645 | . 2 ⊢ ↑𝑚 = (𝑥 ∈ V, 𝑦 ∈ V ↦ {𝑓 ∣ 𝑓:𝑦⟶𝑥}) | |
2 | vex 2740 | . . 3 ⊢ 𝑦 ∈ V | |
3 | vex 2740 | . . 3 ⊢ 𝑥 ∈ V | |
4 | mapex 6649 | . . 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 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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