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| Mirrors > Home > MPE Home > Th. List > dmmpti | Structured version Visualization version GIF version | ||
| Description: Domain of the mapping operation. (Contributed by NM, 6-Sep-2005.) (Revised by Mario Carneiro, 31-Aug-2015.) |
| Ref | Expression |
|---|---|
| fnmpti.1 | ⊢ 𝐵 ∈ V |
| fnmpti.2 | ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐵) |
| Ref | Expression |
|---|---|
| dmmpti | ⊢ dom 𝐹 = 𝐴 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fnmpti.1 | . . 3 ⊢ 𝐵 ∈ V | |
| 2 | fnmpti.2 | . . 3 ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐵) | |
| 3 | 1, 2 | fnmpti 6682 | . 2 ⊢ 𝐹 Fn 𝐴 |
| 4 | 3 | fndmi 6643 | 1 ⊢ dom 𝐹 = 𝐴 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ∈ wcel 2145 Vcvv 3451 ↦ cmpt 5186 dom cdm 5651 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-sep 5249 ax-pr 5391 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ral 3078 df-rex 3088 df-rab 3414 df-v 3453 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5546 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-fun 6540 df-fn 6541 |
| This theorem is used by: fvmptex 7008 resfunexg 7221 brtpos2 8249 pwfilem 9309 inlresf 9995 inrresf 9997 sgndm 15249 vdwlem8 17166 oppccatf 17902 lubdm 18523 glbdm 18536 mndpsuppss 18959 dprd2dlem2 20256 dprd2dlem1 20257 dprd2da 20258 ablfac1c 20287 ablfac1eu 20289 ablfaclem2 20302 ablfaclem3 20303 elocv 21974 dmtopon 23241 dfac14 23937 kqtop 24064 symgtgp 24425 eltsms 24452 ressprdsds 24690 minveclem1 25745 isi1f 25995 itg1val 26004 cmvth 26311 mvth 26312 lhop2 26335 dvfsumabs 26343 dvfsumrlim2 26352 taylthlem1 26700 taylthlem2 26701 ulmdvlem1 26727 pige3ALT 26848 relogcn 26966 atandm 27204 atanf 27208 atancn 27264 dmarea 27285 dfarea 27288 efrlim 27297 lgamgulmlem2 27357 dchrptlem2 27592 dchrptlem3 27593 dchrisum0 27847 nosupno 28060 nosupdm 28061 nosupbday 28062 nosupres 28064 nosupbnd1lem1 28065 noinfno 28075 noinfdm 28076 incistruhgr 29657 vsfval 31235 ipasslem8 31439 minvecolem1 31476 xppreima2 33245 ofpreima 33259 rmfsupp2 33798 zarclsint 34504 zartopn 34507 zarmxt1 34512 zarcmplem 34513 dmsigagen 34777 measbase 34830 sseqf 35024 ballotlem7 35168 bj-inftyexpitaudisj 38126 bj-inftyexpidisj 38131 bj-elccinfty 38135 bj-minftyccb 38146 fin2so 38530 poimirlem30 38568 poimir 38571 dvtan 38588 itg2addnclem2 38590 ftc1anclem6 38616 totbndbnd 38723 tfsconcatrev 44349 comptiunov2i 44705 lhe4.4ex1a 45312 dvsinax 46922 fourierdlem62 47177 fourierdlem70 47185 fourierdlem71 47186 fourierdlem80 47195 fouriersw 47240 smflimsuplem1 47829 smflimsuplem4 47832 scmsuppss 49482 lincext2 49566 idfurcl 50205 reldmprcof1 50488 reldmlmd2 50760 reldmcmd2 50761 aacllem 50938 |
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