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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 6883 | . 2 ⊢ ↑𝑚 = (𝑥 ∈ V, 𝑦 ∈ V ↦ {𝑓 ∣ 𝑓:𝑦⟶𝑥}) | |
| 2 | vex 2815 | . . 3 ⊢ 𝑦 ∈ V | |
| 3 | vex 2815 | . . 3 ⊢ 𝑥 ∈ V | |
| 4 | mapex 6887 | . . 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 6398 | 1 ⊢ ↑𝑚 Fn (V × V) |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2203 {cab 2218 Vcvv 2812 × cxp 4746 Fn wfn 5346 ⟶wf 5347 ↑𝑚 cmap 6881 |
| 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 2205 ax-14 2206 ax-ext 2214 ax-sep 4227 ax-pow 4286 ax-pr 4321 ax-un 4553 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ral 2525 df-rex 2526 df-rab 2529 df-v 2814 df-sbc 3042 df-csb 3138 df-un 3214 df-in 3216 df-ss 3223 df-pw 3670 df-sn 3694 df-pr 3695 df-op 3697 df-uni 3914 df-iun 3992 df-br 4109 df-opab 4171 df-mpt 4172 df-id 4413 df-xp 4754 df-rel 4755 df-cnv 4756 df-co 4757 df-dm 4758 df-rn 4759 df-res 4760 df-ima 4761 df-iota 5311 df-fun 5353 df-fn 5354 df-f 5355 df-fv 5359 df-oprab 6053 df-mpo 6054 df-1st 6333 df-2nd 6334 df-map 6883 |
| This theorem is referenced by: mapsnend 7051 mapsnen 7052 map1 7053 mapen 7098 mapdom1g 7099 mapxpen 7100 xpmapenlem 7101 mapunen 7103 2omapen 7269 hashfacen 11201 wrdexg 11228 omctfn 13183 prdsvallem 13474 prdsval 13475 ismhm 13663 mhmex 13664 rhmex 14291 fnpsr 14802 psrelbas 14817 psrplusgg 14820 psraddcl 14822 psr0cl 14823 psr0lid 14824 psrnegcl 14825 psrlinv 14826 psrgrp 14827 psr1clfi 14830 mplsubgfilemcl 14841 cnfval 15046 cnpfval 15047 cnpval 15050 ismet 15196 isxmet 15197 xmetunirn 15210 plyval 15584 pw1mapen 16757 |
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