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| Mirrors > Home > MPE Home > Th. List > Mathboxes > dpval2 | Structured version Visualization version GIF version | ||
| Description: Value of the decimal point construct. (Contributed by Thierry Arnoux, 16-Dec-2021.) |
| Ref | Expression |
|---|---|
| dpval2.a | ⊢ 𝐴 ∈ ℕ0 |
| dpval2.b | ⊢ 𝐵 ∈ ℝ |
| Ref | Expression |
|---|---|
| dpval2 | ⊢ (𝐴.𝐵) = (𝐴 + (𝐵 / ;10)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dpval2.a | . . 3 ⊢ 𝐴 ∈ ℕ0 | |
| 2 | dpval2.b | . . 3 ⊢ 𝐵 ∈ ℝ | |
| 3 | dpval 32879 | . . 3 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℝ) → (𝐴.𝐵) = _𝐴𝐵) | |
| 4 | 1, 2, 3 | mp2an 692 | . 2 ⊢ (𝐴.𝐵) = _𝐴𝐵 |
| 5 | df-dp2 32861 | . 2 ⊢ _𝐴𝐵 = (𝐴 + (𝐵 / ;10)) | |
| 6 | 4, 5 | eqtri 2756 | 1 ⊢ (𝐴.𝐵) = (𝐴 + (𝐵 / ;10)) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1541 ∈ wcel 2113 (class class class)co 7354 ℝcr 11014 0cc0 11015 1c1 11016 + caddc 11018 / cdiv 11783 ℕ0cn0 12390 ;cdc 12596 _cdp2 32860 .cdp 32877 |
| 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 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2705 ax-sep 5238 ax-nul 5248 ax-pr 5374 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2566 df-clab 2712 df-cleq 2725 df-clel 2808 df-nfc 2882 df-ne 2930 df-ral 3049 df-rex 3058 df-rab 3397 df-v 3439 df-sbc 3738 df-dif 3901 df-un 3903 df-ss 3915 df-nul 4283 df-if 4477 df-sn 4578 df-pr 4580 df-op 4584 df-uni 4861 df-br 5096 df-opab 5158 df-id 5516 df-xp 5627 df-rel 5628 df-cnv 5629 df-co 5630 df-dm 5631 df-iota 6444 df-fun 6490 df-fv 6496 df-ov 7357 df-oprab 7358 df-mpo 7359 df-dp2 32861 df-dp 32878 |
| This theorem is referenced by: dpval3 32883 dpmul10 32884 dpmul100 32886 dp3mul10 32887 dplti 32894 dpgti 32895 dpadd2 32899 |
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