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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 11771. (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 12833 | . 2 ⊢ ;𝐴𝐵 ∈ ℕ0 |
| 4 | decpmulnc.c | . 2 ⊢ 𝐶 ∈ ℕ0 | |
| 5 | decpmulnc.d | . 2 ⊢ 𝐷 ∈ ℕ0 | |
| 6 | eqid 2760 | . 2 ⊢ ;𝐶𝐷 = ;𝐶𝐷 | |
| 7 | decpmulnc.3 | . . 3 ⊢ (𝐵 · 𝐷) = 𝐺 | |
| 8 | 2, 5 | nn0mulcli 12648 | . . 3 ⊢ (𝐵 · 𝐷) ∈ ℕ0 |
| 9 | 7, 8 | eqeltrri 2857 | . 2 ⊢ 𝐺 ∈ ℕ0 |
| 10 | 1, 5 | nn0mulcli 12648 | . 2 ⊢ (𝐴 · 𝐷) ∈ ℕ0 |
| 11 | eqid 2760 | . . 3 ⊢ ;𝐴𝐵 = ;𝐴𝐵 | |
| 12 | decpmulnc.1 | . . 3 ⊢ (𝐴 · 𝐶) = 𝐸 | |
| 13 | 10 | nn0cni 12622 | . . . 4 ⊢ (𝐴 · 𝐷) ∈ ℂ |
| 14 | 2, 4 | nn0mulcli 12648 | . . . . 5 ⊢ (𝐵 · 𝐶) ∈ ℕ0 |
| 15 | 14 | nn0cni 12622 | . . . 4 ⊢ (𝐵 · 𝐶) ∈ ℂ |
| 16 | decpmulnc.2 | . . . 4 ⊢ ((𝐴 · 𝐷) + (𝐵 · 𝐶)) = 𝐹 | |
| 17 | 13, 15, 16 | addcomli 11506 | . . 3 ⊢ ((𝐵 · 𝐶) + (𝐴 · 𝐷)) = 𝐹 |
| 18 | 1, 2, 10, 11, 4, 12, 17 | decrmanc 12880 | . 2 ⊢ ((;𝐴𝐵 · 𝐶) + (𝐴 · 𝐷)) = ;𝐸𝐹 |
| 19 | eqid 2760 | . . 3 ⊢ (𝐴 · 𝐷) = (𝐴 · 𝐷) | |
| 20 | 5, 1, 2, 11, 19, 7 | decmul1 12887 | . 2 ⊢ (;𝐴𝐵 · 𝐷) = ;(𝐴 · 𝐷)𝐺 |
| 21 | 3, 4, 5, 6, 9, 10, 18, 20 | decmul2c 12889 | 1 ⊢ (;𝐴𝐵 · ;𝐶𝐷) = ;;𝐸𝐹𝐺 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1569 ∈ wcel 2144 (class class class)co 7421 + caddc 11207 · cmul 11209 ℕ0cn0 12610 ;cdc 12818 |
| 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 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7752 ax-resscn 11261 ax-1cn 11262 ax-icn 11263 ax-addcl 11264 ax-addrcl 11265 ax-mulcl 11266 ax-mulrcl 11267 ax-mulcom 11268 ax-addass 11269 ax-mulass 11270 ax-distr 11271 ax-i2m1 11272 ax-1ne0 11273 ax-1rid 11274 ax-rnegex 11275 ax-rrecex 11276 ax-cnre 11277 ax-pre-lttri 11278 ax-pre-lttrn 11279 ax-pre-ltadd 11280 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6541 df-fn 6542 df-f 6543 df-f1 6544 df-fo 6545 df-f1o 6546 df-fv 6547 df-riota 7378 df-ov 7424 df-oprab 7425 df-mpo 7426 df-om 7879 df-2nd 8003 df-frecs 8303 df-wrecs 8334 df-recs 8383 df-rdg 8422 df-er 8721 df-en 8978 df-dom 8979 df-sdom 8980 df-pnf 11349 df-mnf 11350 df-ltxr 11352 df-sub 11547 df-nn 12340 df-2 12409 df-3 12410 df-4 12411 df-5 12412 df-6 12413 df-7 12414 df-8 12415 df-9 12416 df-n0 12611 df-dec 12819 |
| This theorem is used by: decpmul 43439 sqdeccom12 43440 |
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