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| Mirrors > Home > MPE Home > Th. List > fndm | Structured version Visualization version GIF version | ||
| Description: The domain of a function. (Contributed by NM, 2-Aug-1994.) |
| Ref | Expression |
|---|---|
| fndm | ⊢ (𝐹 Fn 𝐴 → dom 𝐹 = 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-fn 6536 | . 2 ⊢ (𝐹 Fn 𝐴 ↔ (Fun 𝐹 ∧ dom 𝐹 = 𝐴)) | |
| 2 | 1 | simprbi 503 | 1 ⊢ (𝐹 Fn 𝐴 → dom 𝐹 = 𝐴) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 dom cdm 5655 Fun wfun 6527 Fn wfn 6528 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
| This proof depends on definitions: df-bi 210 df-an 402 df-fn 6536 |
| This theorem is used by: fndmi 6636 fndmd 6637 funfni 6638 fndmu 6639 fnbr 6640 fnunres1 6644 fncofn 6649 fnco 6650 fnresdm 6651 fnresdisj 6652 fnssresb 6654 fn0 6663 fnimadisj 6664 fnimaeq0 6665 f1odmOLD 6822 fvelimab 6950 fvun1 6969 eqfnfv2 7023 fndmdif 7034 fneqeql2 7039 elpreima 7050 fsn2 7130 fnsnbg 7162 fnprb 7207 fntpb 7208 fconst3 7212 fconst4 7213 fnfvima 7232 ralima 7236 fnunirn 7250 dff13 7251 nvof1o 7281 oprssov 7583 fnexALT 7948 curry1 8101 curry1val 8102 curry2 8104 curry2val 8106 fparlem3 8111 fparlem4 8112 offsplitfpar 8116 suppvalfng 8165 suppvalfn 8166 suppfnss 8187 fnsuppres 8189 tposfo2 8247 frrlem3 8287 frrlem4 8288 smodm2 8344 smoel2 8352 tfrlem8 8373 tfrlem9 8374 tfrlem9a 8375 tfrlem13 8379 tz7.44-3 8397 rdglim 8415 frsucmptn 8428 oaabs2 8637 omabs 8639 ixpprc 8926 undifixp 8941 bren 8962 fndmeng 9042 tfsnfin2 9330 inf0 9600 r1lim 9754 jech9.3 9796 ssrankr1 9817 rankuni 9845 dfac3 10124 cfsmolem 10272 fin23lem31 10345 itunitc1 10422 ituniiun 10424 fnct 10544 fnctOLD 10545 cfpwsdom 10593 grur1 10829 genpdm 11011 fsuppmapnn0fiublem 14054 fsuppmapnn0fiub 14055 hashfn 14439 cshimadifsn 14900 cshimadifsn0 14901 shftfn 15146 rlimi2 15601 phimullem 16870 restsspw 17516 prdsdsval 17563 fnpr2ob 17644 sscpwex 17904 sscfn1 17906 sscfn2 17907 isssc 17909 funcres 17985 xpcbas 18266 xpchomfval 18267 gsumpropd2lem 18781 psgndmsubg 19629 dsmmbas2 21950 dsmmelbas 21952 islindf4 22051 restbas 23383 ptval 23796 kqcldsat 23959 kqnrmlem1 23969 kqnrmlem2 23970 hmphtop 24004 ustn0 24447 uniiccdif 25806 cpncn 26163 cpnres 26164 ulmf2 26620 tglngne 28892 uhgrn0 29524 upgrfn 29544 upgrex 29549 umgrfn 29556 fcoinver 33077 fresunsn 33098 nfpconfp 33105 opprabs 33884 mdetpmtr1 34333 coinflipspace 34992 bnj945 35283 bnj545 35404 bnj548 35406 bnj570 35414 bnj900 35438 bnj929 35445 bnj983 35460 bnj1018g 35472 bnj1018 35473 bnj1110 35491 bnj1145 35502 bnj1245 35523 bnj1253 35526 bnj1286 35528 bnj1280 35529 bnj1296 35530 bnj1311 35533 bnj1450 35559 bnj1498 35570 bnj1514 35572 bnj1501 35576 dfrdg2 36372 heibor1lem 38559 aks6d1c2lem4 42993 eqresfnbd 43102 aomclem6 43900 tfsconcatun 44178 tfsconcatb0 44185 tfsconcat0i 44186 tfsconcat0b 44187 tfsconcatrev 44189 tfsnfin 44193 ntrclsfv1 44895 ntrneifv1 44919 fnresdmss 46000 dmmptif 46095 fnresfnco 47929 fnfocofob 47967 fnbrafvb 48042 uniimaprimaeqfv 48282 elsetpreimafvssdm 48286 imasetpreimafvbijlemfo 48305 fnxpdmdm 49075 plusfreseq 49079 dmdm 49979 |
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