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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 1569 dom cdm 5651 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 6648 fndmd 6649 funfni 6650 fndmu 6651 fnbr 6652 fnunres1 6656 fncofn 6661 fnco 6662 fnresdm 6663 fnresdisj 6664 fnssresb 6666 fn0 6675 fnimadisj 6676 fnimaeq0 6677 f1odmOLD 6834 fvelimab 6962 fvun1 6981 eqfnfv2 7035 fndmdif 7046 fneqeql2 7051 elpreima 7062 fsn2 7142 fnsnbg 7174 fnprb 7218 fntpb 7219 fconst3 7223 fconst4 7224 fnfvima 7243 ralima 7247 fnunirn 7261 dff13 7262 nvof1o 7292 oprssov 7594 fnexALT 7967 curry1 8121 curry1val 8122 curry2 8124 curry2val 8126 fparlem3 8131 fparlem4 8132 offsplitfpar 8136 suppvalfng 8191 suppvalfn 8192 suppfnss 8213 fnsuppres 8215 tposfo2 8273 frrlem3 8313 frrlem4 8314 smodm2 8370 smoel2 8378 tfrlem8 8399 tfrlem9 8400 tfrlem9a 8401 tfrlem13 8405 tz7.44-3 8423 rdglim 8441 frsucmptn 8454 oaabs2 8665 omabs 8667 ixpprc 8954 undifixp 8969 bren 8990 fndmeng 9070 tfsnfin2 9359 inf0 9629 jech9.3OLD 9830 ssrankr1 9854 rankuni 9886 dfac3 10207 cfsmolem 10355 fin23lem31 10428 itunitc1 10505 ituniiun 10507 fnct 10627 fnctOLD 10628 cfpwsdom 10676 grur1 10912 genpdm 11094 fsuppmapnn0fiublem 14140 fsuppmapnn0fiub 14141 hashfn 14526 cshimadifsn 14988 cshimadifsn0 14989 shftfn 15235 rlimi2 15690 phimullem 16965 restsspw 17611 prdsdsval 17658 fnpr2ob 17739 sscpwex 17999 sscfn1 18001 sscfn2 18002 isssc 18004 funcres 18080 xpcbas 18361 xpchomfval 18362 gsumpropd2lem 18877 psgndmsubg 19725 dsmmbas2 22052 dsmmelbas 22054 islindf4 22153 restbas 23485 ptval 23898 kqcldsat 24061 kqnrmlem1 24071 kqnrmlem2 24072 hmphtop 24106 ustn0 24549 uniiccdif 25908 cpncn 26265 cpnres 26266 ulmf2 26720 tglngne 29022 uhgrn0 29654 upgrfn 29674 upgrex 29679 umgrfn 29686 fcoinver 33249 fresunsn 33270 nfpconfp 33277 opprabs 34056 mdetpmtr1 34505 coinflipspace 35163 bnj945 35454 bnj545 35575 bnj548 35577 bnj570 35585 bnj900 35609 bnj929 35616 bnj983 35631 bnj1018g 35643 bnj1018 35644 bnj1110 35662 bnj1145 35673 bnj1245 35694 bnj1253 35697 bnj1286 35699 bnj1280 35700 bnj1296 35701 bnj1311 35704 bnj1450 35730 bnj1498 35741 bnj1514 35743 bnj1501 35747 dfrdg2 36653 heibor1lem 38852 aks6d1c2lem4 43286 eqresfnbd 43395 aomclem6 44170 tfsconcatun 44448 tfsconcatb0 44455 tfsconcat0i 44456 tfsconcat0b 44457 tfsconcatrev 44459 tfsnfin 44463 ntrclsfv1 45164 ntrneifv1 45188 fnresdmss 46291 dmmptif 46386 fnresfnco 48219 fnfocofob 48257 fnbrafvb 48332 uniimaprimaeqfv 48572 elsetpreimafvssdm 48576 imasetpreimafvbijlemfo 48595 fnxpdmdm 49365 plusfreseq 49369 dmdm 50275 |
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