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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 11563. (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 12598 | . 2 ⊢ ;𝐴𝐵 ∈ ℕ0 |
| 4 | decpmulnc.c | . 2 ⊢ 𝐶 ∈ ℕ0 | |
| 5 | decpmulnc.d | . 2 ⊢ 𝐷 ∈ ℕ0 | |
| 6 | eqid 2731 | . 2 ⊢ ;𝐶𝐷 = ;𝐶𝐷 | |
| 7 | decpmulnc.3 | . . 3 ⊢ (𝐵 · 𝐷) = 𝐺 | |
| 8 | 2, 5 | nn0mulcli 12414 | . . 3 ⊢ (𝐵 · 𝐷) ∈ ℕ0 |
| 9 | 7, 8 | eqeltrri 2828 | . 2 ⊢ 𝐺 ∈ ℕ0 |
| 10 | 1, 5 | nn0mulcli 12414 | . 2 ⊢ (𝐴 · 𝐷) ∈ ℕ0 |
| 11 | eqid 2731 | . . 3 ⊢ ;𝐴𝐵 = ;𝐴𝐵 | |
| 12 | decpmulnc.1 | . . 3 ⊢ (𝐴 · 𝐶) = 𝐸 | |
| 13 | 10 | nn0cni 12388 | . . . 4 ⊢ (𝐴 · 𝐷) ∈ ℂ |
| 14 | 2, 4 | nn0mulcli 12414 | . . . . 5 ⊢ (𝐵 · 𝐶) ∈ ℕ0 |
| 15 | 14 | nn0cni 12388 | . . . 4 ⊢ (𝐵 · 𝐶) ∈ ℂ |
| 16 | decpmulnc.2 | . . . 4 ⊢ ((𝐴 · 𝐷) + (𝐵 · 𝐶)) = 𝐹 | |
| 17 | 13, 15, 16 | addcomli 11300 | . . 3 ⊢ ((𝐵 · 𝐶) + (𝐴 · 𝐷)) = 𝐹 |
| 18 | 1, 2, 10, 11, 4, 12, 17 | decrmanc 12640 | . 2 ⊢ ((;𝐴𝐵 · 𝐶) + (𝐴 · 𝐷)) = ;𝐸𝐹 |
| 19 | eqid 2731 | . . 3 ⊢ (𝐴 · 𝐷) = (𝐴 · 𝐷) | |
| 20 | 5, 1, 2, 11, 19, 7 | decmul1 12647 | . 2 ⊢ (;𝐴𝐵 · 𝐷) = ;(𝐴 · 𝐷)𝐺 |
| 21 | 3, 4, 5, 6, 9, 10, 18, 20 | decmul2c 12649 | 1 ⊢ (;𝐴𝐵 · ;𝐶𝐷) = ;;𝐸𝐹𝐺 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1541 ∈ wcel 2111 (class class class)co 7341 + caddc 11004 · cmul 11006 ℕ0cn0 12376 ;cdc 12583 |
| 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 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-sep 5229 ax-nul 5239 ax-pow 5298 ax-pr 5365 ax-un 7663 ax-resscn 11058 ax-1cn 11059 ax-icn 11060 ax-addcl 11061 ax-addrcl 11062 ax-mulcl 11063 ax-mulrcl 11064 ax-mulcom 11065 ax-addass 11066 ax-mulass 11067 ax-distr 11068 ax-i2m1 11069 ax-1ne0 11070 ax-1rid 11071 ax-rnegex 11072 ax-rrecex 11073 ax-cnre 11074 ax-pre-lttri 11075 ax-pre-lttrn 11076 ax-pre-ltadd 11077 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ne 2929 df-nel 3033 df-ral 3048 df-rex 3057 df-reu 3347 df-rab 3396 df-v 3438 df-sbc 3737 df-csb 3846 df-dif 3900 df-un 3902 df-in 3904 df-ss 3914 df-pss 3917 df-nul 4279 df-if 4471 df-pw 4547 df-sn 4572 df-pr 4574 df-op 4578 df-uni 4855 df-iun 4938 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5506 df-eprel 5511 df-po 5519 df-so 5520 df-fr 5564 df-we 5566 df-xp 5617 df-rel 5618 df-cnv 5619 df-co 5620 df-dm 5621 df-rn 5622 df-res 5623 df-ima 5624 df-pred 6243 df-ord 6304 df-on 6305 df-lim 6306 df-suc 6307 df-iota 6432 df-fun 6478 df-fn 6479 df-f 6480 df-f1 6481 df-fo 6482 df-f1o 6483 df-fv 6484 df-riota 7298 df-ov 7344 df-oprab 7345 df-mpo 7346 df-om 7792 df-2nd 7917 df-frecs 8206 df-wrecs 8237 df-recs 8286 df-rdg 8324 df-er 8617 df-en 8865 df-dom 8866 df-sdom 8867 df-pnf 11143 df-mnf 11144 df-ltxr 11146 df-sub 11341 df-nn 12121 df-2 12183 df-3 12184 df-4 12185 df-5 12186 df-6 12187 df-7 12188 df-8 12189 df-9 12190 df-n0 12377 df-dec 12584 |
| This theorem is referenced by: decpmul 42321 sqdeccom12 42322 |
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