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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 12712 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℤ) |
| 3 | lcmineqlem14.2 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ ℕ) | |
| 4 | 3 | nnzd 12712 | . . 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 43030 | . . . . . 6 ⊢ (𝜑 → ((𝐵 · 𝐶) ∥ 𝐸 ↔ 𝐵 ∥ (𝐸 / 𝐶))) |
| 9 | 5, 8 | mpbid 235 | . . . . 5 ⊢ (𝜑 → 𝐵 ∥ (𝐸 / 𝐶)) |
| 10 | dvdszrcl 16420 | . . . . 5 ⊢ (𝐵 ∥ (𝐸 / 𝐶) → (𝐵 ∈ ℤ ∧ (𝐸 / 𝐶) ∈ ℤ)) | |
| 11 | 9, 10 | syl 18 | . . . 4 ⊢ (𝜑 → (𝐵 ∈ ℤ ∧ (𝐸 / 𝐶) ∈ ℤ)) |
| 12 | 11 | simprd 501 | . . 3 ⊢ (𝜑 → (𝐸 / 𝐶) ∈ ℤ) |
| 13 | lcmineqlem14.9 | . . 3 ⊢ (𝜑 → (𝐴 gcd 𝐵) = 1) | |
| 14 | 6 | nnzd 12712 | . . . . . 6 ⊢ (𝜑 → 𝐶 ∈ ℤ) |
| 15 | 2, 14 | zmulcld 12802 | . . . . 5 ⊢ (𝜑 → (𝐴 · 𝐶) ∈ ℤ) |
| 16 | lcmineqlem14.4 | . . . . . 6 ⊢ (𝜑 → 𝐷 ∈ ℕ) | |
| 17 | 16 | nnzd 12712 | . . . . 5 ⊢ (𝜑 → 𝐷 ∈ ℤ) |
| 18 | 7 | nnzd 12712 | . . . . 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 16458 | . . . 4 ⊢ (𝜑 → (𝐴 · 𝐶) ∥ 𝐸) |
| 22 | 1, 6, 7 | nnproddivdvdsd 43030 | . . . 4 ⊢ (𝜑 → ((𝐴 · 𝐶) ∥ 𝐸 ↔ 𝐴 ∥ (𝐸 / 𝐶))) |
| 23 | 21, 22 | mpbid 235 | . . 3 ⊢ (𝜑 → 𝐴 ∥ (𝐸 / 𝐶)) |
| 24 | 2, 4, 12, 13, 23, 9 | coprmdvds2d 43031 | . 2 ⊢ (𝜑 → (𝐴 · 𝐵) ∥ (𝐸 / 𝐶)) |
| 25 | 1, 3 | nnmulcld 12384 | . . 3 ⊢ (𝜑 → (𝐴 · 𝐵) ∈ ℕ) |
| 26 | 25, 6, 7 | nnproddivdvdsd 43030 | . 2 ⊢ (𝜑 → (((𝐴 · 𝐵) · 𝐶) ∥ 𝐸 ↔ (𝐴 · 𝐵) ∥ (𝐸 / 𝐶))) |
| 27 | 24, 26 | mpbird 260 | 1 ⊢ (𝜑 → ((𝐴 · 𝐵) · 𝐶) ∥ 𝐸) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 class class class wbr 5103 (class class class)co 7418 1c1 11194 · cmul 11198 / cdiv 11966 ℕcn 12328 ℤcz 12686 ∥ cdvds 16415 gcd cgcd 16657 |
| 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 2733 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7749 ax-cnex 11249 ax-resscn 11250 ax-1cn 11251 ax-icn 11252 ax-addcl 11253 ax-addrcl 11254 ax-mulcl 11255 ax-mulrcl 11256 ax-mulcom 11257 ax-addass 11258 ax-mulass 11259 ax-distr 11260 ax-i2m1 11261 ax-1ne0 11262 ax-1rid 11263 ax-rnegex 11264 ax-rrecex 11265 ax-cnre 11266 ax-pre-lttri 11267 ax-pre-lttrn 11268 ax-pre-ltadd 11269 ax-pre-mulgt0 11270 ax-pre-sup 11271 |
| 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 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3453 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 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 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-riota 7375 df-ov 7421 df-oprab 7422 df-mpo 7423 df-om 7876 df-2nd 8000 df-frecs 8292 df-wrecs 8323 df-recs 8372 df-rdg 8411 df-er 8710 df-en 8967 df-dom 8968 df-sdom 8969 df-sup 9427 df-inf 9428 df-pnf 11338 df-mnf 11339 df-xr 11340 df-ltxr 11341 df-le 11342 df-sub 11536 df-neg 11537 df-div 11967 df-nn 12329 df-2 12398 df-3 12399 df-n0 12600 df-z 12687 df-uz 12959 df-rp 13114 df-fl 13925 df-mod 14003 df-seq 14138 df-exp 14198 df-cj 15259 df-re 15260 df-im 15261 df-sqrt 15395 df-abs 15396 df-dvds 16416 df-gcd 16658 |
| This theorem is used by: lcmineqlem19 43077 |
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