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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 6499 | . 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 208 = wceq 1537 ⟶wf 6353 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-clab 2802 df-cleq 2816 df-clel 2895 df-in 3945 df-ss 3954 df-f 6361 |
This theorem is referenced by: feq123d 6505 fsn2 6900 fsng 6901 fsnunf 6949 funcres2b 17169 funcres2 17170 funcres2c 17173 catciso 17369 hofcl 17511 yonedalem4c 17529 yonedalem3b 17531 yonedainv 17533 gsumress 17894 resmhm2b 17989 pwsdiagmhm 17997 frmdup3lem 18033 frmdup3 18034 isghm 18360 frgpup3lem 18905 gsumzsubmcl 19040 dmdprd 19122 frlmup2 20945 scmatghm 21144 scmatmhm 21145 mdetdiaglem 21209 cnpf2 21860 2ndcctbss 22065 1stcelcls 22071 uptx 22235 txcn 22236 tsmssubm 22753 cnextucn 22914 pi1addf 23653 caufval 23880 equivcau 23905 lmcau 23918 plypf1 24804 coef2 24823 ulmval 24970 uhgr0vb 26859 uhgrun 26861 uhgrstrrepe 26865 isumgrs 26883 upgrun 26905 umgrun 26907 wksfval 27393 wlkres 27454 ajfval 28588 chscllem4 29419 lindfpropd 30944 fedgmullem1 31027 rrhf 31241 sibff 31596 sibfof 31600 orvcval4 31720 bj-finsumval0 34569 matunitlindflem2 34891 poimirlem9 34903 isbnd3 35064 prdsbnd 35073 heibor 35101 elghomlem1OLD 35165 selvval2lem4 39143 cnfsmf 43024 upwlksfval 44017 resmgmhm2b 44074 zrtermorngc 44279 zrtermoringc 44348 |
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