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| Mirrors > Home > ILE Home > Th. List > ffn | GIF version | ||
| Description: A mapping is a function. (Contributed by NM, 2-Aug-1994.) |
| Ref | Expression |
|---|---|
| ffn | ⊢ (𝐹:𝐴⟶𝐵 → 𝐹 Fn 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-f 5328 | . 2 ⊢ (𝐹:𝐴⟶𝐵 ↔ (𝐹 Fn 𝐴 ∧ ran 𝐹 ⊆ 𝐵)) | |
| 2 | 1 | simplbi 274 | 1 ⊢ (𝐹:𝐴⟶𝐵 → 𝐹 Fn 𝐴) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ⊆ wss 3198 ran crn 4724 Fn wfn 5319 ⟶wf 5320 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 |
| This theorem depends on definitions: df-bi 117 df-f 5328 |
| This theorem is referenced by: ffnd 5480 ffun 5482 frel 5484 fdm 5485 fresin 5512 fcoi1 5514 feu 5516 f0bi 5526 fnconstg 5531 f1fn 5541 fofn 5558 dffo2 5560 fimadmfo 5565 f1ofn 5581 fdmeu 5685 feqmptd 5695 fvco3 5713 ffvelcdm 5776 dff2 5787 dffo3 5790 dffo4 5791 dffo5 5792 f1ompt 5794 ffnfv 5801 fcompt 5813 fsn2 5817 fconst2g 5864 fconstfvm 5867 fex 5878 dff13 5904 cocan1 5923 off 6243 suppssof1 6248 ofco 6249 caofref 6255 caofrss 6262 caoftrn 6263 fo1stresm 6319 fo2ndresm 6320 1stcof 6321 2ndcof 6322 fo2ndf 6387 tposf2 6429 smoiso 6463 tfrcllemssrecs 6513 tfrcllemsucaccv 6515 elmapfn 6835 mapsn 6854 pw2f1odclem 7015 mapen 7027 updjudhcoinlf 7270 updjudhcoinrg 7271 updjud 7272 omp1eomlem 7284 dfz2 9542 uzn0 9762 unirnioo 10198 dfioo2 10199 ioorebasg 10200 fzen 10268 fseq1p1m1 10319 2ffzeq 10366 fvinim0ffz 10477 frecuzrdglem 10663 frecuzrdgtcl 10664 frecuzrdg0 10665 frecuzrdgfunlem 10671 frecuzrdg0t 10674 seq3val 10712 seqvalcd 10713 ser0f 10786 ffz0hash 11087 fnfzo0hash 11089 wrdred1hash 11147 shftf 11381 uzin2 11538 rexanuz 11539 prodf1f 12094 eff2 12231 reeff1 12251 tanvalap 12259 1arithlem4 12929 1arith 12930 isgrpinv 13627 kerf1ghm 13851 cnfldadd 14566 cnfldmul 14568 cnfldplusf 14578 cnfldsub 14579 znunit 14663 lmbr2 14928 cncnpi 14942 cncnp 14944 cnpdis 14956 lmff 14963 tx1cn 14983 tx2cn 14984 upxp 14986 txcnmpt 14987 uptx 14988 xmettpos 15084 blrnps 15125 blrn 15126 xmeterval 15149 qtopbasss 15235 cnbl0 15248 cnblcld 15249 cnfldms 15250 tgioo 15268 tgqioo 15269 dvfre 15424 plyreres 15478 reeff1o 15487 pilem1 15493 ioocosf1o 15568 dfrelog 15574 mpodvdsmulf1o 15704 fsumdvdsmul 15705 012of 16528 2o01f 16529 taupi 16613 |
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