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| Mirrors > Home > ILE Home > Th. List > apdivmuld | GIF version | ||
| Description: Relationship between division and multiplication. (Contributed by Jim Kingdon, 26-Dec-2022.) |
| Ref | Expression |
|---|---|
| divcld.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| divcld.2 | ⊢ (𝜑 → 𝐵 ∈ ℂ) |
| divmuld.3 | ⊢ (𝜑 → 𝐶 ∈ ℂ) |
| divmulapd.4 | ⊢ (𝜑 → 𝐵 # 0) |
| Ref | Expression |
|---|---|
| apdivmuld | ⊢ (𝜑 → ((𝐴 / 𝐵) # 𝐶 ↔ (𝐵 · 𝐶) # 𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | divcld.1 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 2 | divcld.2 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ ℂ) | |
| 3 | divmulapd.4 | . . . 4 ⊢ (𝜑 → 𝐵 # 0) | |
| 4 | 1, 2, 3 | divclapd 9013 | . . 3 ⊢ (𝜑 → (𝐴 / 𝐵) ∈ ℂ) |
| 5 | divmuld.3 | . . 3 ⊢ (𝜑 → 𝐶 ∈ ℂ) | |
| 6 | apmul1 9011 | . . 3 ⊢ (((𝐴 / 𝐵) ∈ ℂ ∧ 𝐶 ∈ ℂ ∧ (𝐵 ∈ ℂ ∧ 𝐵 # 0)) → ((𝐴 / 𝐵) # 𝐶 ↔ ((𝐴 / 𝐵) · 𝐵) # (𝐶 · 𝐵))) | |
| 7 | 4, 5, 2, 3, 6 | syl112anc 1278 | . 2 ⊢ (𝜑 → ((𝐴 / 𝐵) # 𝐶 ↔ ((𝐴 / 𝐵) · 𝐵) # (𝐶 · 𝐵))) |
| 8 | 1, 2, 3 | divcanap1d 9014 | . . 3 ⊢ (𝜑 → ((𝐴 / 𝐵) · 𝐵) = 𝐴) |
| 9 | 5, 2 | mulcomd 8244 | . . 3 ⊢ (𝜑 → (𝐶 · 𝐵) = (𝐵 · 𝐶)) |
| 10 | 8, 9 | breq12d 4106 | . 2 ⊢ (𝜑 → (((𝐴 / 𝐵) · 𝐵) # (𝐶 · 𝐵) ↔ 𝐴 # (𝐵 · 𝐶))) |
| 11 | 2, 5 | mulcld 8243 | . . 3 ⊢ (𝜑 → (𝐵 · 𝐶) ∈ ℂ) |
| 12 | apsym 8829 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ (𝐵 · 𝐶) ∈ ℂ) → (𝐴 # (𝐵 · 𝐶) ↔ (𝐵 · 𝐶) # 𝐴)) | |
| 13 | 1, 11, 12 | syl2anc 411 | . 2 ⊢ (𝜑 → (𝐴 # (𝐵 · 𝐶) ↔ (𝐵 · 𝐶) # 𝐴)) |
| 14 | 7, 10, 13 | 3bitrd 214 | 1 ⊢ (𝜑 → ((𝐴 / 𝐵) # 𝐶 ↔ (𝐵 · 𝐶) # 𝐴)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ↔ wb 105 ∈ wcel 2202 class class class wbr 4093 (class class class)co 6028 ℂcc 8073 0cc0 8075 · cmul 8080 # cap 8804 / cdiv 8895 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 ax-un 4536 ax-setind 4641 ax-cnex 8166 ax-resscn 8167 ax-1cn 8168 ax-1re 8169 ax-icn 8170 ax-addcl 8171 ax-addrcl 8172 ax-mulcl 8173 ax-mulrcl 8174 ax-addcom 8175 ax-mulcom 8176 ax-addass 8177 ax-mulass 8178 ax-distr 8179 ax-i2m1 8180 ax-0lt1 8181 ax-1rid 8182 ax-0id 8183 ax-rnegex 8184 ax-precex 8185 ax-cnre 8186 ax-pre-ltirr 8187 ax-pre-ltwlin 8188 ax-pre-lttrn 8189 ax-pre-apti 8190 ax-pre-ltadd 8191 ax-pre-mulgt0 8192 ax-pre-mulext 8193 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ne 2404 df-nel 2499 df-ral 2516 df-rex 2517 df-reu 2518 df-rmo 2519 df-rab 2520 df-v 2805 df-sbc 3033 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-br 4094 df-opab 4156 df-id 4396 df-po 4399 df-iso 4400 df-xp 4737 df-rel 4738 df-cnv 4739 df-co 4740 df-dm 4741 df-iota 5293 df-fun 5335 df-fv 5341 df-riota 5981 df-ov 6031 df-oprab 6032 df-mpo 6033 df-pnf 8259 df-mnf 8260 df-xr 8261 df-ltxr 8262 df-le 8263 df-sub 8395 df-neg 8396 df-reap 8798 df-ap 8805 df-div 8896 |
| This theorem is referenced by: irrmulap 9925 tanaddaplem 12360 |
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