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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 2146 Vcvv 3457 ↦ cmpt 5194 dom cdm 5663 |
| 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 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-sep 5259 ax-pr 5406 |
| 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 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ral 3082 df-rex 3092 df-rab 3419 df-v 3459 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4287 df-if 4490 df-sn 4592 df-pr 4594 df-op 4598 df-br 5112 df-opab 5176 df-mpt 5195 df-id 5558 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-fun 6542 df-fn 6543 |
| This theorem is used by: fvmptex 7008 resfunexg 7220 brtpos2 8234 pwfilem 9284 inlresf 9916 inrresf 9918 sgndm 15159 vdwlem8 17072 oppccatf 17808 lubdm 18429 glbdm 18442 mndpsuppss 18862 dprd2dlem2 20158 dprd2dlem1 20159 dprd2da 20160 ablfac1c 20189 ablfac1eu 20191 ablfaclem2 20204 ablfaclem3 20205 elocv 21870 dmtopon 23132 dfac14 23828 kqtop 23955 symgtgp 24316 eltsms 24343 ressprdsds 24581 minveclem1 25636 isi1f 25886 itg1val 25895 cmvth 26203 mvth 26204 lhop2 26227 dvfsumabs 26235 dvfsumrlim2 26244 taylthlem1 26589 taylthlem2 26590 ulmdvlem1 26616 pige3ALT 26738 relogcn 26856 atandm 27094 atanf 27098 atancn 27154 dmarea 27175 dfarea 27178 efrlim 27187 lgamgulmlem2 27247 dchrptlem2 27482 dchrptlem3 27483 dchrisum0 27737 nosupno 27920 nosupdm 27921 nosupbday 27922 nosupres 27924 nosupbnd1lem1 27925 noinfno 27935 noinfdm 27936 incistruhgr 29486 vsfval 31058 ipasslem8 31262 minvecolem1 31299 xppreima2 33069 ofpreima 33083 rmfsupp2 33623 zarclsint 34328 zartopn 34331 zarmxt1 34336 zarcmplem 34337 dmsigagen 34601 measbase 34654 sseqf 34849 ballotlem7 34993 bj-inftyexpitaudisj 37908 bj-inftyexpidisj 37913 bj-elccinfty 37917 bj-minftyccb 37928 fin2so 38317 poimirlem30 38360 poimir 38363 dvtan 38380 itg2addnclem2 38382 ftc1anclem6 38408 totbndbnd 38500 tfsconcatrev 44135 comptiunov2i 44492 lhe4.4ex1a 45099 dvsinax 46687 fourierdlem62 46942 fourierdlem70 46950 fourierdlem71 46951 fourierdlem80 46960 fouriersw 47005 smflimsuplem1 47594 smflimsuplem4 47597 scmsuppss 49210 lincext2 49294 idfurcl 49935 reldmprcof1 50218 reldmlmd2 50490 reldmcmd2 50491 aacllem 50680 |
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