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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 7262 | . 2 ⊢ (if(𝜑, 𝐴, 𝐵) = 𝐴 → (if(𝜑, 𝐴, 𝐵)𝐹𝐶) = (𝐴𝐹𝐶)) | |
2 | oveq1 7262 | . 2 ⊢ (if(𝜑, 𝐴, 𝐵) = 𝐵 → (if(𝜑, 𝐴, 𝐵)𝐹𝐶) = (𝐵𝐹𝐶)) | |
3 | 1, 2 | ifsb 4469 | 1 ⊢ (if(𝜑, 𝐴, 𝐵)𝐹𝐶) = if(𝜑, (𝐴𝐹𝐶), (𝐵𝐹𝐶)) |
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: scmatscm 21570 pmatcollpwscmatlem1 21846 idpm2idmp 21858 monmat2matmon 21881 chmatval 21886 leibpi 25997 musumsum 26246 muinv 26247 dchrinvcl 26306 rpvmasum2 26565 padicabvcxp 26685 pnfneige0 31803 plymulx0 32426 ftc1anclem6 35782 reabssgn 41133 sqrtcval 41138 linc0scn0 45652 |
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