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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 6540 | . 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 5651 Fun wfun 6531 Fn wfn 6532 |
| 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 6540 |
| This theorem is used by: fndmi 6641 fndmd 6642 funfni 6643 fndmu 6644 fnbr 6645 fnunres1 6649 fncofn 6654 fnco 6655 fnresdm 6656 fnresdisj 6657 fnssresb 6659 fn0 6668 fnimadisj 6669 fnimaeq0 6670 f1odmOLD 6827 fvelimab 6955 fvun1 6974 eqfnfv2 7028 fndmdif 7039 fneqeql2 7044 elpreima 7055 fsn2 7135 fnsnbg 7167 fnprb 7212 fntpb 7213 fconst3 7217 fconst4 7218 fnfvima 7237 ralima 7241 fnunirn 7255 dff13 7256 nvof1o 7286 oprssov 7588 fnexALT 7961 curry1 8113 curry1val 8114 curry2 8116 curry2val 8118 fparlem3 8123 fparlem4 8124 offsplitfpar 8128 suppvalfng 8177 suppvalfn 8178 suppfnss 8199 fnsuppres 8201 tposfo2 8259 frrlem3 8299 frrlem4 8300 smodm2 8356 smoel2 8364 tfrlem8 8385 tfrlem9 8386 tfrlem9a 8387 tfrlem13 8391 tz7.44-3 8409 rdglim 8427 frsucmptn 8440 oaabs2 8651 omabs 8653 ixpprc 8940 undifixp 8955 bren 8976 fndmeng 9056 tfsnfin2 9345 inf0 9615 jech9.3OLD 9816 ssrankr1 9840 rankuni 9872 dfac3 10193 cfsmolem 10341 fin23lem31 10414 itunitc1 10491 ituniiun 10493 fnct 10613 fnctOLD 10614 cfpwsdom 10662 grur1 10898 genpdm 11080 fsuppmapnn0fiublem 14126 fsuppmapnn0fiub 14127 hashfn 14512 cshimadifsn 14973 cshimadifsn0 14974 shftfn 15219 rlimi2 15674 phimullem 16949 restsspw 17595 prdsdsval 17642 fnpr2ob 17723 sscpwex 17983 sscfn1 17985 sscfn2 17986 isssc 17988 funcres 18064 xpcbas 18345 xpchomfval 18346 gsumpropd2lem 18861 psgndmsubg 19709 dsmmbas2 22036 dsmmelbas 22038 islindf4 22137 restbas 23469 ptval 23882 kqcldsat 24045 kqnrmlem1 24055 kqnrmlem2 24056 hmphtop 24090 ustn0 24533 uniiccdif 25892 cpncn 26249 cpnres 26250 ulmf2 26704 tglngne 29006 uhgrn0 29638 upgrfn 29658 upgrex 29663 umgrfn 29670 fcoinver 33191 fresunsn 33212 nfpconfp 33219 opprabs 33999 mdetpmtr1 34448 coinflipspace 35106 bnj945 35397 bnj545 35518 bnj548 35520 bnj570 35528 bnj900 35552 bnj929 35559 bnj983 35574 bnj1018g 35586 bnj1018 35587 bnj1110 35605 bnj1145 35616 bnj1245 35637 bnj1253 35640 bnj1286 35642 bnj1280 35643 bnj1296 35644 bnj1311 35647 bnj1450 35673 bnj1498 35684 bnj1514 35686 bnj1501 35690 dfrdg2 36537 heibor1lem 38723 aks6d1c2lem4 43157 eqresfnbd 43266 aomclem6 44045 tfsconcatun 44323 tfsconcatb0 44330 tfsconcat0i 44331 tfsconcat0b 44332 tfsconcatrev 44334 tfsnfin 44338 ntrclsfv1 45040 ntrneifv1 45064 fnresdmss 46152 dmmptif 46247 fnresfnco 48080 fnfocofob 48118 fnbrafvb 48193 uniimaprimaeqfv 48433 elsetpreimafvssdm 48437 imasetpreimafvbijlemfo 48456 fnxpdmdm 49226 plusfreseq 49230 dmdm 50130 |
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