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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 6543 | . 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 5663 Fun wfun 6534 Fn wfn 6535 |
| 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 6543 |
| This theorem is used by: fndmi 6643 fndmd 6644 funfni 6645 fndmu 6646 fnbr 6647 fnunres1 6651 fncofn 6656 fnco 6657 fnresdm 6658 fnresdisj 6659 fnssresb 6661 fn0 6670 fnimadisj 6671 fnimaeq0 6672 f1odmOLD 6829 fvelimab 6957 fvun1 6976 eqfnfv2 7030 fndmdif 7041 fneqeql2 7046 elpreima 7057 fsn2 7136 fnsnbg 7168 fnprb 7213 fntpb 7214 fconst3 7218 fconst4 7219 fnfvima 7238 ralima 7242 fnunirn 7256 dff13 7257 nvof1o 7287 oprssov 7589 fnexALT 7954 curry1 8105 curry1val 8106 curry2 8108 curry2val 8110 fparlem3 8115 fparlem4 8116 offsplitfpar 8120 suppvalfng 8169 suppvalfn 8170 suppfnss 8191 fnsuppres 8193 tposfo2 8251 frrlem3 8291 frrlem4 8292 smodm2 8348 smoel2 8356 tfrlem8 8377 tfrlem9 8378 tfrlem9a 8379 tfrlem13 8383 tz7.44-3 8401 rdglim 8419 frsucmptn 8432 oaabs2 8641 omabs 8643 ixpprc 8923 undifixp 8938 bren 8959 fndmeng 9039 tfsnfin2 9327 inf0 9597 r1lim 9751 jech9.3 9793 ssrankr1 9814 rankuni 9842 dfac3 10121 cfsmolem 10269 fin23lem31 10342 itunitc1 10419 ituniiun 10421 fnct 10536 cfpwsdom 10584 grur1 10820 genpdm 11002 fsuppmapnn0fiublem 14044 fsuppmapnn0fiub 14045 hashfn 14429 cshimadifsn 14890 cshimadifsn0 14891 shftfn 15134 rlimi2 15589 phimullem 16860 restsspw 17506 prdsdsval 17553 fnpr2ob 17634 sscpwex 17894 sscfn1 17896 sscfn2 17897 isssc 17899 funcres 17975 xpcbas 18256 xpchomfval 18257 gsumpropd2lem 18769 psgndmsubg 19616 dsmmbas2 21937 dsmmelbas 21939 islindf4 22038 restbas 23365 ptval 23778 kqcldsat 23941 kqnrmlem1 23951 kqnrmlem2 23952 hmphtop 23986 ustn0 24429 uniiccdif 25788 cpncn 26146 cpnres 26147 ulmf2 26598 tglngne 28870 uhgrn0 29472 upgrfn 29492 upgrex 29497 umgrfn 29504 fcoinver 33020 fresunsn 33041 nfpconfp 33048 opprabs 33828 mdetpmtr1 34277 coinflipspace 34936 bnj945 35227 bnj545 35348 bnj548 35350 bnj570 35358 bnj900 35382 bnj929 35389 bnj983 35404 bnj1018g 35416 bnj1018 35417 bnj1110 35435 bnj1145 35446 bnj1245 35467 bnj1253 35470 bnj1286 35472 bnj1280 35473 bnj1296 35474 bnj1311 35477 bnj1450 35503 bnj1498 35514 bnj1514 35516 bnj1501 35520 dfrdg2 36322 heibor1lem 38518 aks6d1c2lem4 42952 eqresfnbd 43061 aomclem6 43844 tfsconcatun 44122 tfsconcatb0 44129 tfsconcat0i 44130 tfsconcat0b 44131 tfsconcatrev 44133 tfsnfin 44137 ntrclsfv1 44839 ntrneifv1 44863 fnresdmss 45944 dmmptif 46039 fnresfnco 47836 fnfocofob 47874 fnbrafvb 47949 uniimaprimaeqfv 48189 elsetpreimafvssdm 48193 imasetpreimafvbijlemfo 48212 fnxpdmdm 48982 plusfreseq 48986 dmdm 49888 |
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