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Mirrors > Home > MPE Home > Th. List > funfn | Structured version Visualization version GIF version |
Description: An equivalence for the function predicate. (Contributed by NM, 13-Aug-2004.) |
Ref | Expression |
---|---|
funfn | ⊢ (Fun 𝐴 ↔ 𝐴 Fn dom 𝐴) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2622 | . . 3 ⊢ dom 𝐴 = dom 𝐴 | |
2 | 1 | biantru 526 | . 2 ⊢ (Fun 𝐴 ↔ (Fun 𝐴 ∧ dom 𝐴 = dom 𝐴)) |
3 | df-fn 5891 | . 2 ⊢ (𝐴 Fn dom 𝐴 ↔ (Fun 𝐴 ∧ dom 𝐴 = dom 𝐴)) | |
4 | 2, 3 | bitr4i 267 | 1 ⊢ (Fun 𝐴 ↔ 𝐴 Fn dom 𝐴) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 196 ∧ wa 384 = wceq 1483 dom cdm 5114 Fun wfun 5882 Fn wfn 5883 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-ext 2602 |
This theorem depends on definitions: df-bi 197 df-an 386 df-ex 1705 df-cleq 2615 df-fn 5891 |
This theorem is referenced by: funfnd 5919 funssxp 6061 funforn 6122 funbrfvb 6238 funopfvb 6239 ssimaex 6263 fvco 6274 fvco4i 6276 eqfunfv 6316 fvimacnvi 6331 unpreima 6341 respreima 6344 elrnrexdm 6363 elrnrexdmb 6364 ffvresb 6394 funiun 6412 funressn 6426 funresdfunsn 6455 resfunexg 6479 funex 6482 funiunfv 6506 elunirn 6509 suppval1 7301 funsssuppss 7321 wfrlem4 7418 smores 7449 smores2 7451 tfrlem1 7472 rdgsucg 7519 rdglimg 7521 fundmfibi 8245 resfnfinfin 8246 residfi 8247 mptfi 8265 resfifsupp 8303 ordtypelem4 8426 ordtypelem6 8428 ordtypelem7 8429 ordtypelem9 8431 ordtypelem10 8432 harwdom 8495 ackbij2 9065 brdom3 9350 brdom5 9351 brdom4 9352 mptct 9360 smobeth 9408 fpwwe2lem11 9462 hashkf 13119 hashfun 13224 hashimarn 13227 resunimafz0 13229 fclim 14284 isstruct2 15867 xpsc0 16220 xpsc1 16221 invf 16428 coapm 16721 psgnghm 19926 lindfrn 20160 ofco2 20257 dfac14 21421 perfdvf 23667 c1lip2 23761 taylf 24115 lpvtx 25963 upgrle2 26000 uhgrvtxedgiedgb 26031 ausgrumgri 26062 uhgr2edg 26100 ushgredgedg 26121 ushgredgedgloop 26123 subgruhgredgd 26176 subuhgr 26178 subupgr 26179 subumgr 26180 subusgr 26181 dfnbgr3 26236 vtxdun 26377 upgrewlkle2 26502 wlkiswwlks1 26753 vdn0conngrumgrv2 27056 eupthvdres 27095 hlimf 28094 adj1o 28753 abrexdomjm 29345 iunpreima 29383 fresf1o 29433 unipreima 29446 xppreima 29449 mptctf 29495 sitgf 30409 orvcval2 30520 frrlem4 31783 elno3 31808 noextenddif 31821 noextendlt 31822 noextendgt 31823 nosupbnd2lem1 31861 noetalem3 31865 fullfunfnv 32053 fullfunfv 32054 abrexdom 33525 diaf11N 36338 dibf11N 36450 gneispace3 38431 gneispace 38432 gneispacef2 38434 funcoressn 41207 funbrafvb 41236 funopafvb 41237 |
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