| 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 6650 | . 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 206 = wceq 1542 ⟶wf 6496 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-9 2124 ax-ext 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1782 df-cleq 2729 df-ss 3920 df-f 6504 |
| This theorem is referenced by: feq3dd 6657 feq123d 6659 fsn2 7091 fsng 7092 fsnunf 7141 funcres2b 17833 funcres2 17834 funcres2c 17839 catciso 18047 hofcl 18194 yonedalem4c 18212 yonedalem3b 18214 yonedainv 18216 gsumress 18619 resmgmhm2b 18650 resmhm2b 18759 pwsdiagmhm 18768 frmdup3lem 18803 frmdup3 18804 isghmOLD 19157 frgpup3lem 19718 gsumzsubmcl 19859 dmdprd 19941 zrtermorngc 20588 zrtermoringc 20620 imadrhmcl 20742 rngqiprngghm 21266 frlmup2 21766 evlsvvval 22060 scmatghm 22489 scmatmhm 22490 mdetdiaglem 22554 cnpf2 23206 2ndcctbss 23411 1stcelcls 23417 uptx 23581 txcn 23582 tsmssubm 24099 cnextucn 24258 pi1addf 25015 caufval 25243 equivcau 25268 lmcau 25281 plypf1 26185 coef2 26204 ulmval 26357 uhgr0vb 29157 uhgrun 29159 uhgrstrrepe 29163 isumgrs 29181 upgrun 29203 umgrun 29205 wksfval 29695 wlkres 29754 ajfval 30896 chscllem4 31727 rlocf1 33366 imasmhm 33446 imasghm 33447 imasrhm 33448 lindfpropd 33474 ply1degltdimlem 33799 fedgmullem1 33806 rrhf 34175 sibff 34513 sibfof 34517 orvcval4 34638 bj-finsumval0 37534 matunitlindflem2 37862 poimirlem9 37874 isbnd3 38029 prdsbnd 38038 heibor 38066 elghomlem1OLD 38130 aks6d1c6lem2 42535 aks6d1c6lem3 42536 aks6d1c6isolem2 42539 aks6d1c6lem5 42541 cnfsmf 47092 upwlksfval 48489 |
| Copyright terms: Public domain | W3C validator |