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| Mirrors > Home > MPE Home > Th. List > Mathboxes > decpmulnc | Structured version Visualization version GIF version | ||
| Description: Partial products algorithm for two digit multiplication, no carry. Compare muladdi 11693. (Contributed by Steven Nguyen, 9-Dec-2022.) |
| Ref | Expression |
|---|---|
| decpmulnc.a | ⊢ 𝐴 ∈ ℕ0 |
| decpmulnc.b | ⊢ 𝐵 ∈ ℕ0 |
| decpmulnc.c | ⊢ 𝐶 ∈ ℕ0 |
| decpmulnc.d | ⊢ 𝐷 ∈ ℕ0 |
| decpmulnc.1 | ⊢ (𝐴 · 𝐶) = 𝐸 |
| decpmulnc.2 | ⊢ ((𝐴 · 𝐷) + (𝐵 · 𝐶)) = 𝐹 |
| decpmulnc.3 | ⊢ (𝐵 · 𝐷) = 𝐺 |
| Ref | Expression |
|---|---|
| decpmulnc | ⊢ (;𝐴𝐵 · ;𝐶𝐷) = ;;𝐸𝐹𝐺 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | decpmulnc.a | . . 3 ⊢ 𝐴 ∈ ℕ0 | |
| 2 | decpmulnc.b | . . 3 ⊢ 𝐵 ∈ ℕ0 | |
| 3 | 1, 2 | deccl 12728 | . 2 ⊢ ;𝐴𝐵 ∈ ℕ0 |
| 4 | decpmulnc.c | . 2 ⊢ 𝐶 ∈ ℕ0 | |
| 5 | decpmulnc.d | . 2 ⊢ 𝐷 ∈ ℕ0 | |
| 6 | eqid 2736 | . 2 ⊢ ;𝐶𝐷 = ;𝐶𝐷 | |
| 7 | decpmulnc.3 | . . 3 ⊢ (𝐵 · 𝐷) = 𝐺 | |
| 8 | 2, 5 | nn0mulcli 12544 | . . 3 ⊢ (𝐵 · 𝐷) ∈ ℕ0 |
| 9 | 7, 8 | eqeltrri 2832 | . 2 ⊢ 𝐺 ∈ ℕ0 |
| 10 | 1, 5 | nn0mulcli 12544 | . 2 ⊢ (𝐴 · 𝐷) ∈ ℕ0 |
| 11 | eqid 2736 | . . 3 ⊢ ;𝐴𝐵 = ;𝐴𝐵 | |
| 12 | decpmulnc.1 | . . 3 ⊢ (𝐴 · 𝐶) = 𝐸 | |
| 13 | 10 | nn0cni 12518 | . . . 4 ⊢ (𝐴 · 𝐷) ∈ ℂ |
| 14 | 2, 4 | nn0mulcli 12544 | . . . . 5 ⊢ (𝐵 · 𝐶) ∈ ℕ0 |
| 15 | 14 | nn0cni 12518 | . . . 4 ⊢ (𝐵 · 𝐶) ∈ ℂ |
| 16 | decpmulnc.2 | . . . 4 ⊢ ((𝐴 · 𝐷) + (𝐵 · 𝐶)) = 𝐹 | |
| 17 | 13, 15, 16 | addcomli 11432 | . . 3 ⊢ ((𝐵 · 𝐶) + (𝐴 · 𝐷)) = 𝐹 |
| 18 | 1, 2, 10, 11, 4, 12, 17 | decrmanc 12770 | . 2 ⊢ ((;𝐴𝐵 · 𝐶) + (𝐴 · 𝐷)) = ;𝐸𝐹 |
| 19 | eqid 2736 | . . 3 ⊢ (𝐴 · 𝐷) = (𝐴 · 𝐷) | |
| 20 | 5, 1, 2, 11, 19, 7 | decmul1 12777 | . 2 ⊢ (;𝐴𝐵 · 𝐷) = ;(𝐴 · 𝐷)𝐺 |
| 21 | 3, 4, 5, 6, 9, 10, 18, 20 | decmul2c 12779 | 1 ⊢ (;𝐴𝐵 · ;𝐶𝐷) = ;;𝐸𝐹𝐺 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1540 ∈ wcel 2109 (class class class)co 7410 + caddc 11137 · cmul 11139 ℕ0cn0 12506 ;cdc 12713 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2708 ax-sep 5271 ax-nul 5281 ax-pow 5340 ax-pr 5407 ax-un 7734 ax-resscn 11191 ax-1cn 11192 ax-icn 11193 ax-addcl 11194 ax-addrcl 11195 ax-mulcl 11196 ax-mulrcl 11197 ax-mulcom 11198 ax-addass 11199 ax-mulass 11200 ax-distr 11201 ax-i2m1 11202 ax-1ne0 11203 ax-1rid 11204 ax-rnegex 11205 ax-rrecex 11206 ax-cnre 11207 ax-pre-lttri 11208 ax-pre-lttrn 11209 ax-pre-ltadd 11210 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2540 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2810 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3062 df-reu 3365 df-rab 3421 df-v 3466 df-sbc 3771 df-csb 3880 df-dif 3934 df-un 3936 df-in 3938 df-ss 3948 df-pss 3951 df-nul 4314 df-if 4506 df-pw 4582 df-sn 4607 df-pr 4609 df-op 4613 df-uni 4889 df-iun 4974 df-br 5125 df-opab 5187 df-mpt 5207 df-tr 5235 df-id 5553 df-eprel 5558 df-po 5566 df-so 5567 df-fr 5611 df-we 5613 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-pred 6295 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-riota 7367 df-ov 7413 df-oprab 7414 df-mpo 7415 df-om 7867 df-2nd 7994 df-frecs 8285 df-wrecs 8316 df-recs 8390 df-rdg 8429 df-er 8724 df-en 8965 df-dom 8966 df-sdom 8967 df-pnf 11276 df-mnf 11277 df-ltxr 11279 df-sub 11473 df-nn 12246 df-2 12308 df-3 12309 df-4 12310 df-5 12311 df-6 12312 df-7 12313 df-8 12314 df-9 12315 df-n0 12507 df-dec 12714 |
| This theorem is referenced by: decpmul 42305 sqdeccom12 42306 |
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