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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 5943 | . 2 ⊢ (𝜑 → (𝐹:𝐴⟶𝐶 ↔ 𝐺:𝐴⟶𝐶)) |
3 | feq12d.2 | . . 3 ⊢ (𝜑 → 𝐴 = 𝐵) | |
4 | 3 | feq2d 5944 | . 2 ⊢ (𝜑 → (𝐺:𝐴⟶𝐶 ↔ 𝐺:𝐵⟶𝐶)) |
5 | 2, 4 | bitrd 267 | 1 ⊢ (𝜑 → (𝐹:𝐴⟶𝐶 ↔ 𝐺:𝐵⟶𝐶)) |
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-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-rab 2905 df-v 3175 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-sn 4126 df-pr 4128 df-op 4132 df-br 4584 df-opab 4644 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-fun 5806 df-fn 5807 df-f 5808 |
This theorem is referenced by: feq123d 5947 fprg 6327 smoeq 7334 oif 8318 1fv 12327 catcisolem 16579 hofcl 16722 dmdprd 18220 dpjf 18279 pjf2 19877 mat1dimmul 20101 lmbr2 20873 lmff 20915 dfac14 21231 lmmbr2 22865 lmcau 22919 perfdvf 23473 dvnfre 23521 dvle 23574 dvfsumle 23588 dvfsumge 23589 dvmptrecl 23591 uhgr0e 25737 uhgrstrrepe 25745 incistruhgr 25746 upgr1e 25779 uhgrac 25834 isumgra 25844 iswlk 26048 istrl 26067 constr1trl 26118 constr3trllem1 26178 eupap1 26503 resf1o 28893 ismeas 29589 omsmeas 29712 mbfresfi 32626 sdclem1 32709 dfac21 36654 fnlimfvre 38741 fourierdlem74 39073 fourierdlem103 39102 fourierdlem104 39103 sge0iunmpt 39311 ismea 39344 isome 39384 sssmf 39625 smflimlem3 39659 smflimlem4 39660 1hevtxdg1 40721 umgr2v2e 40741 is1wlk 40813 isWlk 40814 0wlkOns1 41289 |
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