| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 5384 | . 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 |
| This proof depends on syntax axioms: → wi 4 ⊆ wss 3220 ran crn 4777 Fn wfn 5375 ⟶wf 5376 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 |
| This proof depends on definitions: df-bi 117 df-f 5384 |
| This theorem is used by: ffnd 5537 ffun 5539 frel 5541 fdm 5542 ffrn 5548 fresin 5571 fresaunres2disj 5573 fcoi1 5575 feu 5577 f0bi 5588 fnconstg 5593 f1fn 5603 fofn 5620 dffo2 5622 fimadmfo 5627 f1ofn 5643 fdmeu 5749 feqmptd 5759 fvco3 5779 ffvelcdm 5844 dff2 5855 dffo3 5858 dffo4 5859 dffo5 5860 f1ompt 5862 ffnfv 5869 fcompt 5881 fsn2 5885 fconst2g 5933 fconstfvm 5936 fdmexb 5942 fex 5950 dff13 5977 cocan1 5996 off 6319 suppssof1 6324 ofco 6325 caofref 6331 caofrss 6338 caoftrn 6339 fo1stresm 6399 fo2ndresm 6400 1stcof 6401 2ndcof 6402 fo2ndf 6467 fsuppeq 6491 fsuppeqg 6492 tposf2 6544 smoiso 6578 tfrcllemssrecs 6628 tfrcllemsucaccv 6630 elmapfn 6957 mapsnd 6976 mapsn 6978 pw2f1odclem 7140 mapen 7152 mapunen 7157 updjudhcoinlf 7426 updjudhcoinrg 7427 updjud 7428 omp1eomlem 7440 ofsubeq0 9300 dfz2 9726 uzn0 9953 unirnioo 10391 dfioo2 10392 ioorebasg 10393 fzen 10463 fseq1p1m1 10517 2ffzeq 10564 fvinim0ffz 10676 frecuzrdglem 10868 frecuzrdgtcl 10869 frecuzrdg0 10870 frecuzrdgfunlem 10876 frecuzrdg0t 10879 seq3val 10917 seqvalcd 10918 ser0f 10991 ffz0hash 11297 fnfzo0hash 11299 wrdred1hash 11369 shftf 11616 uzin2 11774 rexanuz 11775 prodf1f 12334 eff2 12471 reeff1 12491 tanvalap 12499 1arithlem4 13173 1arith 13174 isgrpinv 13917 kerf1ghm 14135 cnfldadd 15007 cnfldmul 15009 cnfldplusf 15019 cnfldsub 15020 znunit 15102 psrbaglecl 15172 psrlidmfi 15208 lmbr2 15457 cncnpi 15471 cncnp 15473 cnpdis 15485 lmff 15492 tx1cn 15512 tx2cn 15513 upxp 15515 txcnmpt 15516 uptx 15517 xmettpos 15613 blrnps 15654 blrn 15655 xmeterval 15678 qtopbasss 15764 cnbl0 15777 cnblcld 15778 cnfldms 15779 tgioo 15797 tgqioo 15798 dvfre 15953 plyreres 16007 reeff1o 16016 pilem1 16023 ioocosf1o 16099 dfrelog 16106 mpodvdsmulf1o 16301 fsumdvdsmul 16302 012of 17245 2o01f 17246 taupi 17347 |
| Copyright terms: Public domain | W3C validator |