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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 5941 | . 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 195 = wceq 1475 ⟶wf 5800 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-in 3547 df-ss 3554 df-f 5808 |
This theorem is referenced by: feq123d 5947 fsn2 6309 fsng 6310 fsnunf 6356 funcres2b 16380 funcres2 16381 funcres2c 16384 catciso 16580 hofcl 16722 yonedalem4c 16740 yonedalem3b 16742 yonedainv 16744 gsumress 17099 resmhm2b 17184 pwsdiagmhm 17192 frmdup3lem 17226 frmdup3 17227 isghm 17483 frgpup3lem 18013 gsumzsubmcl 18141 dmdprd 18220 frlmup2 19957 scmatghm 20158 scmatmhm 20159 mdetdiaglem 20223 cnpf2 20864 2ndcctbss 21068 1stcelcls 21074 uptx 21238 txcn 21239 tsmssubm 21756 cnextucn 21917 pi1addf 22655 caufval 22881 equivcau 22906 lmcau 22919 plypf1 23772 coef2 23791 ulmval 23938 uhgr0vb 25738 uhgrun 25740 uhgrstrrepe 25745 isumgrs 25762 upgrun 25784 umgrun 25786 uhgrac 25834 ajfval 27048 chscllem4 27883 rrhf 29370 sibff 29725 sibfof 29729 orvcval4 29849 bj-finsumval0 32324 matunitlindflem2 32576 poimirlem9 32588 isbnd3 32753 prdsbnd 32762 heibor 32790 elghomlem1OLD 32854 cnfsmf 39627 1wlksfval 40811 wlksfval 40812 1wlkres 40879 resmgmhm2b 41590 zrtermorngc 41793 zrtermoringc 41862 |
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