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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 6501 | . 2 ⊢ (𝜑 → (𝐹:𝐴⟶𝐶 ↔ 𝐺:𝐴⟶𝐶)) |
3 | feq12d.2 | . . 3 ⊢ (𝜑 → 𝐴 = 𝐵) | |
4 | 3 | feq2d 6502 | . 2 ⊢ (𝜑 → (𝐺:𝐴⟶𝐶 ↔ 𝐺:𝐵⟶𝐶)) |
5 | 2, 4 | bitrd 281 | 1 ⊢ (𝜑 → (𝐹:𝐴⟶𝐶 ↔ 𝐺:𝐵⟶𝐶)) |
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-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-rab 3149 df-v 3498 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-sn 4570 df-pr 4572 df-op 4576 df-br 5069 df-opab 5131 df-rel 5564 df-cnv 5565 df-co 5566 df-dm 5567 df-rn 5568 df-fun 6359 df-fn 6360 df-f 6361 |
This theorem is referenced by: feq123d 6505 fprg 6919 smoeq 7989 oif 8996 1fv 13029 catcisolem 17368 hofcl 17511 dmdprd 19122 dpjf 19181 pjf2 20860 mat1dimmul 21087 lmbr2 21869 lmff 21911 dfac14 22228 lmmbr2 23864 lmcau 23918 perfdvf 24503 dvnfre 24551 dvle 24606 dvfsumle 24620 dvfsumge 24621 dvmptrecl 24623 uhgr0e 26858 uhgrstrrepe 26865 incistruhgr 26866 upgr1e 26900 1hevtxdg1 27290 umgr2v2e 27309 iswlk 27394 0wlkons1 27902 resf1o 30468 ismeas 31460 omsmeas 31583 breprexplema 31903 satfun 32660 mbfresfi 34940 sdclem1 35020 dfac21 39673 fnlimfvre 41962 climrescn 42036 fourierdlem74 42472 fourierdlem103 42501 fourierdlem104 42502 sge0iunmpt 42707 ismea 42740 isome 42783 sssmf 43022 smflimlem3 43056 smflimlem4 43057 isupwlk 44018 |
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