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| Mirrors > Home > MPE Home > Th. List > ovif | Structured version Visualization version GIF version | ||
| Description: Move a conditional outside of an operation. (Contributed by Thierry Arnoux, 25-Jan-2017.) |
| Ref | Expression |
|---|---|
| ovif | ⊢ (if(𝜑, 𝐴, 𝐵)𝐹𝐶) = if(𝜑, (𝐴𝐹𝐶), (𝐵𝐹𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | oveq1 7425 | . 2 ⊢ (if(𝜑, 𝐴, 𝐵) = 𝐴 → (if(𝜑, 𝐴, 𝐵)𝐹𝐶) = (𝐴𝐹𝐶)) | |
| 2 | oveq1 7425 | . 2 ⊢ (if(𝜑, 𝐴, 𝐵) = 𝐵 → (if(𝜑, 𝐴, 𝐵)𝐹𝐶) = (𝐵𝐹𝐶)) | |
| 3 | 1, 2 | ifsb 4496 | 1 ⊢ (if(𝜑, 𝐴, 𝐵)𝐹𝐶) = if(𝜑, (𝐴𝐹𝐶), (𝐵𝐹𝐶)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ifcif 4482 (class class class)co 7418 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2733 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2740 df-cleq 2753 df-clel 2836 df-rab 3414 df-v 3453 df-dif 3902 df-un 3904 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-iota 6493 df-fv 6545 df-ov 7421 |
| This theorem is used by: scmatscm 22821 pmatcollpwscmatlem1 23100 idpm2idmp 23112 monmat2matmon 23135 chmatval 23140 plyn0mulidp 26595 leibpi 27263 musumsum 27512 muinv 27513 dchrinvcl 27573 rpvmasum2 27832 padicabvcxp 27952 mplmulmvr 34164 pnfneige0 34576 ftc1anclem6 38596 reabssgn 44621 sqrtcval 44626 linc0scn0 49504 |
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