Mathbox for Thierry Arnoux |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > 0dp2dp | Structured version Visualization version GIF version |
Description: Multiply by 10 a decimal expansion which starts with a zero. (Contributed by Thierry Arnoux, 16-Dec-2021.) |
Ref | Expression |
---|---|
0dp2dp.a | ⊢ 𝐴 ∈ ℕ0 |
0dp2dp.b | ⊢ 𝐵 ∈ ℝ+ |
Ref | Expression |
---|---|
0dp2dp | ⊢ ((0._𝐴𝐵) · ;10) = (𝐴.𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 0dp2dp.a | . . . 4 ⊢ 𝐴 ∈ ℕ0 | |
2 | 0dp2dp.b | . . . 4 ⊢ 𝐵 ∈ ℝ+ | |
3 | 0p1e1 11760 | . . . 4 ⊢ (0 + 1) = 1 | |
4 | 0z 11993 | . . . 4 ⊢ 0 ∈ ℤ | |
5 | 1z 12013 | . . . 4 ⊢ 1 ∈ ℤ | |
6 | 1, 2, 3, 4, 5 | dpexpp1 30584 | . . 3 ⊢ ((𝐴.𝐵) · (;10↑0)) = ((0._𝐴𝐵) · (;10↑1)) |
7 | 10nn0 12117 | . . . . . 6 ⊢ ;10 ∈ ℕ0 | |
8 | 7 | nn0cni 11910 | . . . . 5 ⊢ ;10 ∈ ℂ |
9 | exp0 13434 | . . . . 5 ⊢ (;10 ∈ ℂ → (;10↑0) = 1) | |
10 | 8, 9 | ax-mp 5 | . . . 4 ⊢ (;10↑0) = 1 |
11 | 10 | oveq2i 7167 | . . 3 ⊢ ((𝐴.𝐵) · (;10↑0)) = ((𝐴.𝐵) · 1) |
12 | exp1 13436 | . . . . 5 ⊢ (;10 ∈ ℂ → (;10↑1) = ;10) | |
13 | 8, 12 | ax-mp 5 | . . . 4 ⊢ (;10↑1) = ;10 |
14 | 13 | oveq2i 7167 | . . 3 ⊢ ((0._𝐴𝐵) · (;10↑1)) = ((0._𝐴𝐵) · ;10) |
15 | 6, 11, 14 | 3eqtr3ri 2853 | . 2 ⊢ ((0._𝐴𝐵) · ;10) = ((𝐴.𝐵) · 1) |
16 | 1, 2 | rpdpcl 30579 | . . . 4 ⊢ (𝐴.𝐵) ∈ ℝ+ |
17 | rpcn 12400 | . . . 4 ⊢ ((𝐴.𝐵) ∈ ℝ+ → (𝐴.𝐵) ∈ ℂ) | |
18 | 16, 17 | ax-mp 5 | . . 3 ⊢ (𝐴.𝐵) ∈ ℂ |
19 | mulid1 10639 | . . 3 ⊢ ((𝐴.𝐵) ∈ ℂ → ((𝐴.𝐵) · 1) = (𝐴.𝐵)) | |
20 | 18, 19 | ax-mp 5 | . 2 ⊢ ((𝐴.𝐵) · 1) = (𝐴.𝐵) |
21 | 15, 20 | eqtri 2844 | 1 ⊢ ((0._𝐴𝐵) · ;10) = (𝐴.𝐵) |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1537 ∈ wcel 2114 (class class class)co 7156 ℂcc 10535 0cc0 10537 1c1 10538 · cmul 10542 ℕ0cn0 11898 ;cdc 12099 ℝ+crp 12390 ↑cexp 13430 _cdp2 30547 .cdp 30564 |
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 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 ax-cnex 10593 ax-resscn 10594 ax-1cn 10595 ax-icn 10596 ax-addcl 10597 ax-addrcl 10598 ax-mulcl 10599 ax-mulrcl 10600 ax-mulcom 10601 ax-addass 10602 ax-mulass 10603 ax-distr 10604 ax-i2m1 10605 ax-1ne0 10606 ax-1rid 10607 ax-rnegex 10608 ax-rrecex 10609 ax-cnre 10610 ax-pre-lttri 10611 ax-pre-lttrn 10612 ax-pre-ltadd 10613 ax-pre-mulgt0 10614 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-pss 3954 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4839 df-iun 4921 df-br 5067 df-opab 5129 df-mpt 5147 df-tr 5173 df-id 5460 df-eprel 5465 df-po 5474 df-so 5475 df-fr 5514 df-we 5516 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-pred 6148 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-riota 7114 df-ov 7159 df-oprab 7160 df-mpo 7161 df-om 7581 df-2nd 7690 df-wrecs 7947 df-recs 8008 df-rdg 8046 df-er 8289 df-en 8510 df-dom 8511 df-sdom 8512 df-pnf 10677 df-mnf 10678 df-xr 10679 df-ltxr 10680 df-le 10681 df-sub 10872 df-neg 10873 df-div 11298 df-nn 11639 df-2 11701 df-3 11702 df-4 11703 df-5 11704 df-6 11705 df-7 11706 df-8 11707 df-9 11708 df-n0 11899 df-z 11983 df-dec 12100 df-uz 12245 df-rp 12391 df-seq 13371 df-exp 13431 df-dp2 30548 df-dp 30565 |
This theorem is referenced by: hgt750lem 31922 |
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