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| Mirrors > Home > MPE Home > Th. List > numma | Structured version Visualization version GIF version | ||
| Description: Perform a multiply-add of two decimal integers 𝑀 and 𝑁 against a fixed multiplicand 𝑃 (no carry). (Contributed by Mario Carneiro, 18-Feb-2014.) |
| Ref | Expression |
|---|---|
| numma.1 | ⊢ 𝑇 ∈ ℕ0 |
| numma.2 | ⊢ 𝐴 ∈ ℕ0 |
| numma.3 | ⊢ 𝐵 ∈ ℕ0 |
| numma.4 | ⊢ 𝐶 ∈ ℕ0 |
| numma.5 | ⊢ 𝐷 ∈ ℕ0 |
| numma.6 | ⊢ 𝑀 = ((𝑇 · 𝐴) + 𝐵) |
| numma.7 | ⊢ 𝑁 = ((𝑇 · 𝐶) + 𝐷) |
| numma.8 | ⊢ 𝑃 ∈ ℕ0 |
| numma.9 | ⊢ ((𝐴 · 𝑃) + 𝐶) = 𝐸 |
| numma.10 | ⊢ ((𝐵 · 𝑃) + 𝐷) = 𝐹 |
| Ref | Expression |
|---|---|
| numma | ⊢ ((𝑀 · 𝑃) + 𝑁) = ((𝑇 · 𝐸) + 𝐹) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | numma.6 | . . . 4 ⊢ 𝑀 = ((𝑇 · 𝐴) + 𝐵) | |
| 2 | 1 | oveq1i 7427 | . . 3 ⊢ (𝑀 · 𝑃) = (((𝑇 · 𝐴) + 𝐵) · 𝑃) |
| 3 | numma.7 | . . 3 ⊢ 𝑁 = ((𝑇 · 𝐶) + 𝐷) | |
| 4 | 2, 3 | oveq12i 7429 | . 2 ⊢ ((𝑀 · 𝑃) + 𝑁) = ((((𝑇 · 𝐴) + 𝐵) · 𝑃) + ((𝑇 · 𝐶) + 𝐷)) |
| 5 | numma.1 | . . . . . . 7 ⊢ 𝑇 ∈ ℕ0 | |
| 6 | 5 | nn0cni 12544 | . . . . . 6 ⊢ 𝑇 ∈ ℂ |
| 7 | numma.2 | . . . . . . . 8 ⊢ 𝐴 ∈ ℕ0 | |
| 8 | 7 | nn0cni 12544 | . . . . . . 7 ⊢ 𝐴 ∈ ℂ |
| 9 | numma.8 | . . . . . . . 8 ⊢ 𝑃 ∈ ℕ0 | |
| 10 | 9 | nn0cni 12544 | . . . . . . 7 ⊢ 𝑃 ∈ ℂ |
| 11 | 8, 10 | mulcli 11244 | . . . . . 6 ⊢ (𝐴 · 𝑃) ∈ ℂ |
| 12 | numma.4 | . . . . . . 7 ⊢ 𝐶 ∈ ℕ0 | |
| 13 | 12 | nn0cni 12544 | . . . . . 6 ⊢ 𝐶 ∈ ℂ |
| 14 | 6, 11, 13 | adddii 11249 | . . . . 5 ⊢ (𝑇 · ((𝐴 · 𝑃) + 𝐶)) = ((𝑇 · (𝐴 · 𝑃)) + (𝑇 · 𝐶)) |
| 15 | 6, 8, 10 | mulassi 11248 | . . . . . 6 ⊢ ((𝑇 · 𝐴) · 𝑃) = (𝑇 · (𝐴 · 𝑃)) |
| 16 | 15 | oveq1i 7427 | . . . . 5 ⊢ (((𝑇 · 𝐴) · 𝑃) + (𝑇 · 𝐶)) = ((𝑇 · (𝐴 · 𝑃)) + (𝑇 · 𝐶)) |
| 17 | 14, 16 | eqtr4i 2788 | . . . 4 ⊢ (𝑇 · ((𝐴 · 𝑃) + 𝐶)) = (((𝑇 · 𝐴) · 𝑃) + (𝑇 · 𝐶)) |
| 18 | 17 | oveq1i 7427 | . . 3 ⊢ ((𝑇 · ((𝐴 · 𝑃) + 𝐶)) + ((𝐵 · 𝑃) + 𝐷)) = ((((𝑇 · 𝐴) · 𝑃) + (𝑇 · 𝐶)) + ((𝐵 · 𝑃) + 𝐷)) |
| 19 | 6, 8 | mulcli 11244 | . . . . . 6 ⊢ (𝑇 · 𝐴) ∈ ℂ |
| 20 | numma.3 | . . . . . . 7 ⊢ 𝐵 ∈ ℕ0 | |
| 21 | 20 | nn0cni 12544 | . . . . . 6 ⊢ 𝐵 ∈ ℂ |
| 22 | 19, 21, 10 | adddiri 11250 | . . . . 5 ⊢ (((𝑇 · 𝐴) + 𝐵) · 𝑃) = (((𝑇 · 𝐴) · 𝑃) + (𝐵 · 𝑃)) |
| 23 | 22 | oveq1i 7427 | . . . 4 ⊢ ((((𝑇 · 𝐴) + 𝐵) · 𝑃) + ((𝑇 · 𝐶) + 𝐷)) = ((((𝑇 · 𝐴) · 𝑃) + (𝐵 · 𝑃)) + ((𝑇 · 𝐶) + 𝐷)) |
| 24 | 19, 10 | mulcli 11244 | . . . . 5 ⊢ ((𝑇 · 𝐴) · 𝑃) ∈ ℂ |
| 25 | 6, 13 | mulcli 11244 | . . . . 5 ⊢ (𝑇 · 𝐶) ∈ ℂ |
| 26 | 21, 10 | mulcli 11244 | . . . . 5 ⊢ (𝐵 · 𝑃) ∈ ℂ |
| 27 | numma.5 | . . . . . 6 ⊢ 𝐷 ∈ ℕ0 | |
| 28 | 27 | nn0cni 12544 | . . . . 5 ⊢ 𝐷 ∈ ℂ |
| 29 | 24, 25, 26, 28 | add4i 11463 | . . . 4 ⊢ ((((𝑇 · 𝐴) · 𝑃) + (𝑇 · 𝐶)) + ((𝐵 · 𝑃) + 𝐷)) = ((((𝑇 · 𝐴) · 𝑃) + (𝐵 · 𝑃)) + ((𝑇 · 𝐶) + 𝐷)) |
| 30 | 23, 29 | eqtr4i 2788 | . . 3 ⊢ ((((𝑇 · 𝐴) + 𝐵) · 𝑃) + ((𝑇 · 𝐶) + 𝐷)) = ((((𝑇 · 𝐴) · 𝑃) + (𝑇 · 𝐶)) + ((𝐵 · 𝑃) + 𝐷)) |
| 31 | 18, 30 | eqtr4i 2788 | . 2 ⊢ ((𝑇 · ((𝐴 · 𝑃) + 𝐶)) + ((𝐵 · 𝑃) + 𝐷)) = ((((𝑇 · 𝐴) + 𝐵) · 𝑃) + ((𝑇 · 𝐶) + 𝐷)) |
| 32 | numma.9 | . . . 4 ⊢ ((𝐴 · 𝑃) + 𝐶) = 𝐸 | |
| 33 | 32 | oveq2i 7428 | . . 3 ⊢ (𝑇 · ((𝐴 · 𝑃) + 𝐶)) = (𝑇 · 𝐸) |
| 34 | numma.10 | . . 3 ⊢ ((𝐵 · 𝑃) + 𝐷) = 𝐹 | |
| 35 | 33, 34 | oveq12i 7429 | . 2 ⊢ ((𝑇 · ((𝐴 · 𝑃) + 𝐶)) + ((𝐵 · 𝑃) + 𝐷)) = ((𝑇 · 𝐸) + 𝐹) |
| 36 | 4, 31, 35 | 3eqtr2i 2791 | 1 ⊢ ((𝑀 · 𝑃) + 𝑁) = ((𝑇 · 𝐸) + 𝐹) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ∈ wcel 2145 (class class class)co 7417 + caddc 11131 · cmul 11133 ℕ0cn0 12532 |
| 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 2215 ax-ext 2734 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7740 ax-resscn 11185 ax-1cn 11186 ax-icn 11187 ax-addcl 11188 ax-addrcl 11189 ax-mulcl 11190 ax-mulrcl 11191 ax-mulcom 11192 ax-addass 11193 ax-mulass 11194 ax-distr 11195 ax-i2m1 11196 ax-1ne0 11197 ax-1rid 11198 ax-rnegex 11199 ax-rrecex 11200 ax-cnre 11201 ax-pre-lttri 11202 ax-pre-lttrn 11203 ax-pre-ltadd 11204 |
| 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 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-iun 4956 df-br 5108 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5554 df-eprel 5559 df-po 5567 df-so 5568 df-fr 5612 df-we 5614 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 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-ov 7420 df-om 7867 df-2nd 7991 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-er 8700 df-en 8957 df-dom 8958 df-sdom 8959 df-pnf 11273 df-mnf 11274 df-ltxr 11276 df-nn 12262 df-n0 12533 |
| This theorem is used by: nummac 12790 numadd 12792 decma 12796 |
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