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| Mirrors > Home > MPE Home > Th. List > Mathboxes > dpval3rp | Structured version Visualization version GIF version | ||
| Description: Value of the decimal point construct. (Contributed by Thierry Arnoux, 16-Dec-2021.) |
| Ref | Expression |
|---|---|
| dpval3rp.a | ⊢ 𝐴 ∈ ℕ0 |
| dpval3rp.b | ⊢ 𝐵 ∈ ℝ+ |
| Ref | Expression |
|---|---|
| dpval3rp | ⊢ (𝐴.𝐵) = _𝐴𝐵 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dpval3rp.a | . 2 ⊢ 𝐴 ∈ ℕ0 | |
| 2 | dpval3rp.b | . . 3 ⊢ 𝐵 ∈ ℝ+ | |
| 3 | rpre 13142 | . . 3 ⊢ (𝐵 ∈ ℝ+ → 𝐵 ∈ ℝ) | |
| 4 | 2, 3 | ax-mp 5 | . 2 ⊢ 𝐵 ∈ ℝ |
| 5 | 1, 4 | dpval3 33516 | 1 ⊢ (𝐴.𝐵) = _𝐴𝐵 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1569 ∈ wcel 2146 (class class class)co 7430 ℝcr 11212 ℕ0cn0 12619 ℝ+crp 13133 _cdp2 33493 .cdp 33510 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-sep 5252 ax-nul 5263 ax-pr 5395 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-sbc 3743 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-br 5107 df-opab 5171 df-id 5550 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-iota 6501 df-fun 6549 df-fv 6555 df-ov 7433 df-oprab 7434 df-mpo 7435 df-rp 13134 df-dp2 33494 df-dp 33511 |
| This theorem is used by: dp0h 33524 rpdpcl 33525 dplt 33526 dpltc 33529 dpexpp1 33530 |
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