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Mirrors > Home > MPE Home > Th. List > ovif2 | Structured version Visualization version GIF version |
Description: Move a conditional outside of an operation. (Contributed by Thierry Arnoux, 1-Oct-2018.) |
Ref | Expression |
---|---|
ovif2 | ⊢ (𝐴𝐹if(𝜑, 𝐵, 𝐶)) = if(𝜑, (𝐴𝐹𝐵), (𝐴𝐹𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | oveq2 7263 | . 2 ⊢ (if(𝜑, 𝐵, 𝐶) = 𝐵 → (𝐴𝐹if(𝜑, 𝐵, 𝐶)) = (𝐴𝐹𝐵)) | |
2 | oveq2 7263 | . 2 ⊢ (if(𝜑, 𝐵, 𝐶) = 𝐶 → (𝐴𝐹if(𝜑, 𝐵, 𝐶)) = (𝐴𝐹𝐶)) | |
3 | 1, 2 | ifsb 4469 | 1 ⊢ (𝐴𝐹if(𝜑, 𝐵, 𝐶)) = if(𝜑, (𝐴𝐹𝐵), (𝐴𝐹𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1539 ifcif 4456 (class class class)co 7255 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-ext 2709 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-sb 2069 df-clab 2716 df-cleq 2730 df-clel 2817 df-rab 3072 df-v 3424 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-br 5071 df-iota 6376 df-fv 6426 df-ov 7258 |
This theorem is referenced by: ramcl 16658 matsc 21507 scmatscmide 21564 mulmarep1el 21629 maducoeval2 21697 madugsum 21700 itg2const 24810 itg2monolem1 24820 iblmulc2 24900 itgmulc2lem1 24901 bddmulibl 24908 dchrvmasumiflem2 26555 rpvmasum2 26565 sgnneg 32407 itg2addnclem 35755 itgaddnclem2 35763 itgmulc2nclem1 35770 mhphf 40208 sqrtcval2 41139 |
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