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Mirrors > Home > MPE Home > Th. List > feq12d | Structured version Visualization version GIF version |
Description: Equality deduction for functions. (Contributed by Paul Chapman, 22-Jun-2011.) |
Ref | Expression |
---|---|
feq12d.1 | ⊢ (𝜑 → 𝐹 = 𝐺) |
feq12d.2 | ⊢ (𝜑 → 𝐴 = 𝐵) |
Ref | Expression |
---|---|
feq12d | ⊢ (𝜑 → (𝐹:𝐴⟶𝐶 ↔ 𝐺:𝐵⟶𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | feq12d.1 | . . 3 ⊢ (𝜑 → 𝐹 = 𝐺) | |
2 | 1 | feq1d 6508 | . 2 ⊢ (𝜑 → (𝐹:𝐴⟶𝐶 ↔ 𝐺:𝐴⟶𝐶)) |
3 | feq12d.2 | . . 3 ⊢ (𝜑 → 𝐴 = 𝐵) | |
4 | 3 | feq2d 6509 | . 2 ⊢ (𝜑 → (𝐺:𝐴⟶𝐶 ↔ 𝐺:𝐵⟶𝐶)) |
5 | 2, 4 | bitrd 282 | 1 ⊢ (𝜑 → (𝐹:𝐴⟶𝐶 ↔ 𝐺:𝐵⟶𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 = wceq 1543 ⟶wf 6354 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2018 ax-8 2114 ax-9 2122 ax-ext 2708 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-sb 2073 df-clab 2715 df-cleq 2728 df-clel 2809 df-rab 3060 df-v 3400 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-nul 4224 df-if 4426 df-sn 4528 df-pr 4530 df-op 4534 df-br 5040 df-opab 5102 df-rel 5543 df-cnv 5544 df-co 5545 df-dm 5546 df-rn 5547 df-fun 6360 df-fn 6361 df-f 6362 |
This theorem is referenced by: feq123d 6512 fprg 6948 smoeq 8065 oif 9124 1fv 13196 catcisolem 17570 hofcl 17721 dmdprd 19339 dpjf 19398 pjf2 20630 mat1dimmul 21327 lmbr2 22110 lmff 22152 dfac14 22469 lmmbr2 24110 lmcau 24164 perfdvf 24754 dvnfre 24803 dvle 24858 dvfsumle 24872 dvfsumge 24873 dvmptrecl 24875 uhgr0e 27116 uhgrstrrepe 27123 incistruhgr 27124 upgr1e 27158 1hevtxdg1 27548 umgr2v2e 27567 iswlk 27652 0wlkons1 28158 resf1o 30739 ismeas 31833 omsmeas 31956 breprexplema 32276 satfun 33040 mbfresfi 35509 sdclem1 35587 dfac21 40535 fnlimfvre 42833 climrescn 42907 fourierdlem74 43339 fourierdlem103 43368 fourierdlem104 43369 sge0iunmpt 43574 ismea 43607 isome 43650 sssmf 43889 smflimlem3 43923 smflimlem4 43924 isupwlk 44914 |
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