| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > feq3d | Structured version Visualization version GIF version | ||
| Description: Equality deduction for functions. (Contributed by AV, 1-Jan-2020.) |
| Ref | Expression |
|---|---|
| feq2d.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| Ref | Expression |
|---|---|
| feq3d | ⊢ (𝜑 → (𝐹:𝑋⟶𝐴 ↔ 𝐹:𝑋⟶𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | feq2d.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | feq3 6642 | . 2 ⊢ (𝐴 = 𝐵 → (𝐹:𝑋⟶𝐴 ↔ 𝐹:𝑋⟶𝐵)) | |
| 3 | 1, 2 | syl 17 | 1 ⊢ (𝜑 → (𝐹:𝑋⟶𝐴 ↔ 𝐹:𝑋⟶𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 207 = wceq 1547 ⟶wf 6488 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-9 2129 ax-ext 2712 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-ex 1787 df-cleq 2732 df-ss 3907 df-f 6496 |
| This theorem is referenced by: feq3dd 6649 feq123d 6651 fsn2 7085 fsng 7086 fsnunf 7136 funcres2b 17862 funcres2 17863 funcres2c 17868 catciso 18076 hofcl 18223 yonedalem4c 18241 yonedalem3b 18243 yonedainv 18245 gsumress 18648 resmgmhm2b 18679 resmhm2b 18788 pwsdiagmhm 18797 frmdup3lem 18832 frmdup3 18833 isghmOLD 19189 frgpup3lem 19750 gsumzsubmcl 19891 dmdprd 19973 zrtermorngc 20622 zrtermoringc 20654 imadrhmcl 20776 rngqiprngghm 21299 frlmup2 21781 evlsvvval 22076 scmatghm 22523 scmatmhm 22524 mdetdiaglem 22588 cnpf2 23240 2ndcctbss 23445 1stcelcls 23451 uptx 23615 txcn 23616 tsmssubm 24133 cnextucn 24292 pi1addf 25039 caufval 25267 equivcau 25292 lmcau 25305 plypf1 26202 coef2 26221 ulmval 26370 uhgr0vb 29166 uhgrun 29168 uhgrstrrepe 29172 isumgrs 29190 upgrun 29212 umgrun 29214 wksfval 29703 wlkres 29762 ajfval 30905 chscllem4 31736 rlocf1 33361 imasmhm 33444 imasghm 33445 imasrhm 33446 lindfpropd 33472 ply1degltdimlem 33813 fedgmullem1 33820 rrhf 34189 sibff 34527 sibfof 34531 orvcval4 34652 bj-finsumval0 37652 matunitlindflem2 37991 poimirlem9 38003 isbnd3 38158 prdsbnd 38167 heibor 38195 elghomlem1OLD 38259 aks6d1c6lem2 42663 aks6d1c6lem3 42664 aks6d1c6isolem2 42667 aks6d1c6lem5 42669 cnfsmf 47190 upwlksfval 48633 |
| Copyright terms: Public domain | W3C validator |