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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 6546 | . 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 5666 Fun wfun 6537 Fn wfn 6538 |
| 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 6546 |
| This theorem is used by: fndmi 6646 fndmd 6647 funfni 6648 fndmu 6649 fnbr 6650 fnunres1 6654 fncofn 6659 fnco 6660 fnresdm 6661 fnresdisj 6662 fnssresb 6664 fn0 6673 fnimadisj 6674 fnimaeq0 6675 f1odmOLD 6832 fvelimab 6960 fvun1 6979 eqfnfv2 7033 fndmdif 7044 fneqeql2 7049 elpreima 7060 fsn2 7139 fnsnbg 7169 fnprb 7213 fntpb 7214 fconst3 7218 fconst4 7219 fnfvima 7238 ralima 7242 fnunirn 7258 dff13 7259 nvof1o 7289 oprssov 7592 fnexALT 7957 curry1 8108 curry1val 8109 curry2 8111 curry2val 8113 fparlem3 8118 fparlem4 8119 offsplitfpar 8123 suppvalfng 8172 suppvalfn 8173 suppfnss 8194 fnsuppres 8196 tposfo2 8254 frrlem3 8294 frrlem4 8295 smodm2 8351 smoel2 8359 tfrlem8 8380 tfrlem9 8381 tfrlem9a 8382 tfrlem13 8386 tz7.44-3 8404 rdglim 8422 frsucmptn 8435 oaabs2 8644 omabs 8646 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 10539 cfpwsdom 10587 grur1 10823 genpdm 11005 fsuppmapnn0fiublem 14046 fsuppmapnn0fiub 14047 hashfn 14431 cshimadifsn 14892 cshimadifsn0 14893 shftfn 15136 rlimi2 15591 phimullem 16863 restsspw 17509 prdsdsval 17556 fnpr2ob 17637 sscpwex 17897 sscfn1 17899 sscfn2 17900 isssc 17902 funcres 17978 xpcbas 18259 xpchomfval 18260 gsumpropd2lem 18762 psgndmsubg 19597 dsmmbas2 21917 dsmmelbas 21919 islindf4 22018 restbas 23345 ptval 23757 kqcldsat 23920 kqnrmlem1 23930 kqnrmlem2 23931 hmphtop 23965 ustn0 24408 uniiccdif 25767 cpncn 26125 cpnres 26126 ulmf2 26577 tglngne 28849 uhgrn0 29447 upgrfn 29467 upgrex 29472 umgrfn 29479 fcoinver 32979 fresunsn 33000 nfpconfp 33007 opprabs 33788 mdetpmtr1 34237 coinflipspace 34895 bnj945 35186 bnj545 35307 bnj548 35309 bnj570 35317 bnj900 35341 bnj929 35348 bnj983 35363 bnj1018g 35375 bnj1018 35376 bnj1110 35394 bnj1145 35405 bnj1245 35426 bnj1253 35429 bnj1286 35431 bnj1280 35432 bnj1296 35433 bnj1311 35436 bnj1450 35462 bnj1498 35473 bnj1514 35475 bnj1501 35479 dfrdg2 36298 heibor1lem 38493 aks6d1c2lem4 42927 eqresfnbd 43036 aomclem6 43819 tfsconcatun 44097 tfsconcatb0 44104 tfsconcat0i 44105 tfsconcat0b 44106 tfsconcatrev 44108 tfsnfin 44112 ntrclsfv1 44814 ntrneifv1 44838 fnresdmss 45919 dmmptif 46014 fnresfnco 47811 fnfocofob 47849 fnbrafvb 47924 uniimaprimaeqfv 48164 elsetpreimafvssdm 48168 imasetpreimafvbijlemfo 48187 fnxpdmdm 48958 plusfreseq 48962 dmdm 49864 |
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