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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 11689. (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 12751 | . 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 12566 | . . 3 ⊢ (𝐵 · 𝐷) ∈ ℕ0 |
| 9 | 7, 8 | eqeltrri 2857 | . 2 ⊢ 𝐺 ∈ ℕ0 |
| 10 | 1, 5 | nn0mulcli 12566 | . 2 ⊢ (𝐴 · 𝐷) ∈ ℕ0 |
| 11 | eqid 2760 | . . 3 ⊢ ;𝐴𝐵 = ;𝐴𝐵 | |
| 12 | decpmulnc.1 | . . 3 ⊢ (𝐴 · 𝐶) = 𝐸 | |
| 13 | 10 | nn0cni 12540 | . . . 4 ⊢ (𝐴 · 𝐷) ∈ ℂ |
| 14 | 2, 4 | nn0mulcli 12566 | . . . . 5 ⊢ (𝐵 · 𝐶) ∈ ℕ0 |
| 15 | 14 | nn0cni 12540 | . . . 4 ⊢ (𝐵 · 𝐶) ∈ ℂ |
| 16 | decpmulnc.2 | . . . 4 ⊢ ((𝐴 · 𝐷) + (𝐵 · 𝐶)) = 𝐹 | |
| 17 | 13, 15, 16 | addcomli 11426 | . . 3 ⊢ ((𝐵 · 𝐶) + (𝐴 · 𝐷)) = 𝐹 |
| 18 | 1, 2, 10, 11, 4, 12, 17 | decrmanc 12798 | . 2 ⊢ ((;𝐴𝐵 · 𝐶) + (𝐴 · 𝐷)) = ;𝐸𝐹 |
| 19 | eqid 2760 | . . 3 ⊢ (𝐴 · 𝐷) = (𝐴 · 𝐷) | |
| 20 | 5, 1, 2, 11, 19, 7 | decmul1 12805 | . 2 ⊢ (;𝐴𝐵 · 𝐷) = ;(𝐴 · 𝐷)𝐺 |
| 21 | 3, 4, 5, 6, 9, 10, 18, 20 | decmul2c 12807 | 1 ⊢ (;𝐴𝐵 · ;𝐶𝐷) = ;;𝐸𝐹𝐺 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ∈ wcel 2145 (class class class)co 7413 + caddc 11127 · cmul 11129 ℕ0cn0 12528 ;cdc 12736 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7736 ax-resscn 11181 ax-1cn 11182 ax-icn 11183 ax-addcl 11184 ax-addrcl 11185 ax-mulcl 11186 ax-mulrcl 11187 ax-mulcom 11188 ax-addass 11189 ax-mulass 11190 ax-distr 11191 ax-i2m1 11192 ax-1ne0 11193 ax-1rid 11194 ax-rnegex 11195 ax-rrecex 11196 ax-cnre 11197 ax-pre-lttri 11198 ax-pre-lttrn 11199 ax-pre-ltadd 11200 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 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 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7370 df-ov 7416 df-oprab 7417 df-mpo 7418 df-om 7863 df-2nd 7987 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-rdg 8399 df-er 8696 df-en 8953 df-dom 8954 df-sdom 8955 df-pnf 11269 df-mnf 11270 df-ltxr 11272 df-sub 11467 df-nn 12258 df-2 12327 df-3 12328 df-4 12329 df-5 12330 df-6 12331 df-7 12332 df-8 12333 df-9 12334 df-n0 12529 df-dec 12737 |
| This theorem is used by: decpmul 43163 sqdeccom12 43164 |
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