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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 6470 | . 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 209 = wceq 1538 ⟶wf 6320 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-ext 2770 |
This theorem depends on definitions: df-bi 210 df-an 400 df-ex 1782 df-sb 2070 df-clab 2777 df-cleq 2791 df-clel 2870 df-v 3443 df-in 3888 df-ss 3898 df-f 6328 |
This theorem is referenced by: feq123d 6476 fsn2 6875 fsng 6876 fsnunf 6924 funcres2b 17159 funcres2 17160 funcres2c 17163 catciso 17359 hofcl 17501 yonedalem4c 17519 yonedalem3b 17521 yonedainv 17523 gsumress 17884 resmhm2b 17979 pwsdiagmhm 17987 frmdup3lem 18023 frmdup3 18024 isghm 18350 frgpup3lem 18895 gsumzsubmcl 19031 dmdprd 19113 frlmup2 20488 scmatghm 21138 scmatmhm 21139 mdetdiaglem 21203 cnpf2 21855 2ndcctbss 22060 1stcelcls 22066 uptx 22230 txcn 22231 tsmssubm 22748 cnextucn 22909 pi1addf 23652 caufval 23879 equivcau 23904 lmcau 23917 plypf1 24809 coef2 24828 ulmval 24975 uhgr0vb 26865 uhgrun 26867 uhgrstrrepe 26871 isumgrs 26889 upgrun 26911 umgrun 26913 wksfval 27399 wlkres 27460 ajfval 28592 chscllem4 29423 lindfpropd 30996 fedgmullem1 31113 rrhf 31349 sibff 31704 sibfof 31708 orvcval4 31828 bj-finsumval0 34700 matunitlindflem2 35054 poimirlem9 35066 isbnd3 35222 prdsbnd 35231 heibor 35259 elghomlem1OLD 35323 selvval2lem4 39431 cnfsmf 43374 upwlksfval 44363 resmgmhm2b 44420 zrtermorngc 44625 zrtermoringc 44694 |
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