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| Mirrors > Home > MPE Home > Th. List > Mathboxes > lcmineqlem14 | Structured version Visualization version GIF version | ||
| Description: Technical lemma for inequality estimate. (Contributed by metakunt, 12-May-2024.) |
| Ref | Expression |
|---|---|
| lcmineqlem14.1 | ⊢ (𝜑 → 𝐴 ∈ ℕ) |
| lcmineqlem14.2 | ⊢ (𝜑 → 𝐵 ∈ ℕ) |
| lcmineqlem14.3 | ⊢ (𝜑 → 𝐶 ∈ ℕ) |
| lcmineqlem14.4 | ⊢ (𝜑 → 𝐷 ∈ ℕ) |
| lcmineqlem14.5 | ⊢ (𝜑 → 𝐸 ∈ ℕ) |
| lcmineqlem14.6 | ⊢ (𝜑 → (𝐴 · 𝐶) ∥ 𝐷) |
| lcmineqlem14.7 | ⊢ (𝜑 → (𝐵 · 𝐶) ∥ 𝐸) |
| lcmineqlem14.8 | ⊢ (𝜑 → 𝐷 ∥ 𝐸) |
| lcmineqlem14.9 | ⊢ (𝜑 → (𝐴 gcd 𝐵) = 1) |
| Ref | Expression |
|---|---|
| lcmineqlem14 | ⊢ (𝜑 → ((𝐴 · 𝐵) · 𝐶) ∥ 𝐸) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lcmineqlem14.1 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ ℕ) | |
| 2 | 1 | nnzd 12550 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℤ) |
| 3 | lcmineqlem14.2 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ ℕ) | |
| 4 | 3 | nnzd 12550 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℤ) |
| 5 | lcmineqlem14.7 | . . . . . 6 ⊢ (𝜑 → (𝐵 · 𝐶) ∥ 𝐸) | |
| 6 | lcmineqlem14.3 | . . . . . . 7 ⊢ (𝜑 → 𝐶 ∈ ℕ) | |
| 7 | lcmineqlem14.5 | . . . . . . 7 ⊢ (𝜑 → 𝐸 ∈ ℕ) | |
| 8 | 3, 6, 7 | nnproddivdvdsd 42439 | . . . . . 6 ⊢ (𝜑 → ((𝐵 · 𝐶) ∥ 𝐸 ↔ 𝐵 ∥ (𝐸 / 𝐶))) |
| 9 | 5, 8 | mpbid 232 | . . . . 5 ⊢ (𝜑 → 𝐵 ∥ (𝐸 / 𝐶)) |
| 10 | dvdszrcl 16226 | . . . . 5 ⊢ (𝐵 ∥ (𝐸 / 𝐶) → (𝐵 ∈ ℤ ∧ (𝐸 / 𝐶) ∈ ℤ)) | |
| 11 | 9, 10 | syl 17 | . . . 4 ⊢ (𝜑 → (𝐵 ∈ ℤ ∧ (𝐸 / 𝐶) ∈ ℤ)) |
| 12 | 11 | simprd 495 | . . 3 ⊢ (𝜑 → (𝐸 / 𝐶) ∈ ℤ) |
| 13 | lcmineqlem14.9 | . . 3 ⊢ (𝜑 → (𝐴 gcd 𝐵) = 1) | |
| 14 | 6 | nnzd 12550 | . . . . . 6 ⊢ (𝜑 → 𝐶 ∈ ℤ) |
| 15 | 2, 14 | zmulcld 12639 | . . . . 5 ⊢ (𝜑 → (𝐴 · 𝐶) ∈ ℤ) |
| 16 | lcmineqlem14.4 | . . . . . 6 ⊢ (𝜑 → 𝐷 ∈ ℕ) | |
| 17 | 16 | nnzd 12550 | . . . . 5 ⊢ (𝜑 → 𝐷 ∈ ℤ) |
| 18 | 7 | nnzd 12550 | . . . . 5 ⊢ (𝜑 → 𝐸 ∈ ℤ) |
| 19 | lcmineqlem14.6 | . . . . 5 ⊢ (𝜑 → (𝐴 · 𝐶) ∥ 𝐷) | |
| 20 | lcmineqlem14.8 | . . . . 5 ⊢ (𝜑 → 𝐷 ∥ 𝐸) | |
| 21 | 15, 17, 18, 19, 20 | dvdstrd 16264 | . . . 4 ⊢ (𝜑 → (𝐴 · 𝐶) ∥ 𝐸) |
| 22 | 1, 6, 7 | nnproddivdvdsd 42439 | . . . 4 ⊢ (𝜑 → ((𝐴 · 𝐶) ∥ 𝐸 ↔ 𝐴 ∥ (𝐸 / 𝐶))) |
| 23 | 21, 22 | mpbid 232 | . . 3 ⊢ (𝜑 → 𝐴 ∥ (𝐸 / 𝐶)) |
| 24 | 2, 4, 12, 13, 23, 9 | coprmdvds2d 42440 | . 2 ⊢ (𝜑 → (𝐴 · 𝐵) ∥ (𝐸 / 𝐶)) |
| 25 | 1, 3 | nnmulcld 12230 | . . 3 ⊢ (𝜑 → (𝐴 · 𝐵) ∈ ℕ) |
| 26 | 25, 6, 7 | nnproddivdvdsd 42439 | . 2 ⊢ (𝜑 → (((𝐴 · 𝐵) · 𝐶) ∥ 𝐸 ↔ (𝐴 · 𝐵) ∥ (𝐸 / 𝐶))) |
| 27 | 24, 26 | mpbird 257 | 1 ⊢ (𝜑 → ((𝐴 · 𝐵) · 𝐶) ∥ 𝐸) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 ∈ wcel 2114 class class class wbr 5085 (class class class)co 7367 1c1 11039 · cmul 11043 / cdiv 11807 ℕcn 12174 ℤcz 12524 ∥ cdvds 16221 gcd cgcd 16463 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-cnex 11094 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 ax-pre-sup 11116 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3062 df-rmo 3342 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-iun 4935 df-br 5086 df-opab 5148 df-mpt 5167 df-tr 5193 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6265 df-ord 6326 df-on 6327 df-lim 6328 df-suc 6329 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-om 7818 df-2nd 7943 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-er 8643 df-en 8894 df-dom 8895 df-sdom 8896 df-sup 9355 df-inf 9356 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-div 11808 df-nn 12175 df-2 12244 df-3 12245 df-n0 12438 df-z 12525 df-uz 12789 df-rp 12943 df-fl 13751 df-mod 13829 df-seq 13964 df-exp 14024 df-cj 15061 df-re 15062 df-im 15063 df-sqrt 15197 df-abs 15198 df-dvds 16222 df-gcd 16464 |
| This theorem is referenced by: lcmineqlem19 42486 |
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