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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 6644 | . 2 ⊢ (𝜑 → (𝐹:𝐴⟶𝐶 ↔ 𝐺:𝐴⟶𝐶)) |
| 3 | feq12d.2 | . . 3 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 4 | 3 | feq2d 6646 | . 2 ⊢ (𝜑 → (𝐺:𝐴⟶𝐶 ↔ 𝐺:𝐵⟶𝐶)) |
| 5 | 2, 4 | bitrd 279 | 1 ⊢ (𝜑 → (𝐹:𝐴⟶𝐶 ↔ 𝐺:𝐵⟶𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 = wceq 1542 ⟶wf 6488 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-ss 3907 df-nul 4275 df-if 4468 df-sn 4569 df-pr 4571 df-op 4575 df-br 5087 df-opab 5149 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-fun 6494 df-fn 6495 df-f 6496 |
| This theorem is referenced by: feq123d 6651 fprg 7102 smoeq 8283 oif 9438 1fv 13592 catcisolem 18068 hofcl 18216 dmdprd 19966 dpjf 20025 pjf2 21704 mat1dimmul 22451 lmbr2 23234 lmff 23276 dfac14 23593 lmmbr2 25236 lmcau 25290 perfdvf 25880 dvnfre 25929 dvle 25984 dvfsumle 25998 dvfsumge 25999 dvmptrecl 26001 uhgr0e 29154 uhgrstrrepe 29161 incistruhgr 29162 upgr1e 29196 1hevtxdg1 29590 umgr2v2e 29609 iswlk 29694 0wlkons1 30206 resf1o 32818 ismeas 34359 omsmeas 34483 breprexplema 34790 satfun 35609 mbfresfi 38001 sdclem1 38078 dfac21 43512 fnlimfvre 46120 climrescn 46194 fourierdlem74 46626 fourierdlem103 46655 fourierdlem104 46656 sge0iunmpt 46864 ismea 46897 isome 46940 sssmf 47184 smflimlem3 47219 smflimlem4 47220 isupwlk 48624 fmpodg 49356 fucof1 49809 |
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