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| Mirrors > Home > MPE Home > Th. List > divalglem4 | Structured version Visualization version GIF version | ||
| Description: Lemma for divalg 16344. (Contributed by Paul Chapman, 21-Mar-2011.) |
| Ref | Expression |
|---|---|
| divalglem0.1 | ⊢ 𝑁 ∈ ℤ |
| divalglem0.2 | ⊢ 𝐷 ∈ ℤ |
| divalglem1.3 | ⊢ 𝐷 ≠ 0 |
| divalglem2.4 | ⊢ 𝑆 = {𝑟 ∈ ℕ0 ∣ 𝐷 ∥ (𝑁 − 𝑟)} |
| Ref | Expression |
|---|---|
| divalglem4 | ⊢ 𝑆 = {𝑟 ∈ ℕ0 ∣ ∃𝑞 ∈ ℤ 𝑁 = ((𝑞 · 𝐷) + 𝑟)} |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | divalglem0.2 | . . . . . 6 ⊢ 𝐷 ∈ ℤ | |
| 2 | divalglem0.1 | . . . . . . 7 ⊢ 𝑁 ∈ ℤ | |
| 3 | nn0z 12526 | . . . . . . 7 ⊢ (𝑧 ∈ ℕ0 → 𝑧 ∈ ℤ) | |
| 4 | zsubcl 12547 | . . . . . . 7 ⊢ ((𝑁 ∈ ℤ ∧ 𝑧 ∈ ℤ) → (𝑁 − 𝑧) ∈ ℤ) | |
| 5 | 2, 3, 4 | sylancr 588 | . . . . . 6 ⊢ (𝑧 ∈ ℕ0 → (𝑁 − 𝑧) ∈ ℤ) |
| 6 | divides 16195 | . . . . . 6 ⊢ ((𝐷 ∈ ℤ ∧ (𝑁 − 𝑧) ∈ ℤ) → (𝐷 ∥ (𝑁 − 𝑧) ↔ ∃𝑞 ∈ ℤ (𝑞 · 𝐷) = (𝑁 − 𝑧))) | |
| 7 | 1, 5, 6 | sylancr 588 | . . . . 5 ⊢ (𝑧 ∈ ℕ0 → (𝐷 ∥ (𝑁 − 𝑧) ↔ ∃𝑞 ∈ ℤ (𝑞 · 𝐷) = (𝑁 − 𝑧))) |
| 8 | nn0cn 12425 | . . . . . . . 8 ⊢ (𝑧 ∈ ℕ0 → 𝑧 ∈ ℂ) | |
| 9 | zmulcl 12554 | . . . . . . . . . 10 ⊢ ((𝑞 ∈ ℤ ∧ 𝐷 ∈ ℤ) → (𝑞 · 𝐷) ∈ ℤ) | |
| 10 | 1, 9 | mpan2 692 | . . . . . . . . 9 ⊢ (𝑞 ∈ ℤ → (𝑞 · 𝐷) ∈ ℤ) |
| 11 | 10 | zcnd 12611 | . . . . . . . 8 ⊢ (𝑞 ∈ ℤ → (𝑞 · 𝐷) ∈ ℂ) |
| 12 | zcn 12507 | . . . . . . . . . . 11 ⊢ (𝑁 ∈ ℤ → 𝑁 ∈ ℂ) | |
| 13 | 2, 12 | ax-mp 5 | . . . . . . . . . 10 ⊢ 𝑁 ∈ ℂ |
| 14 | subadd 11397 | . . . . . . . . . 10 ⊢ ((𝑁 ∈ ℂ ∧ 𝑧 ∈ ℂ ∧ (𝑞 · 𝐷) ∈ ℂ) → ((𝑁 − 𝑧) = (𝑞 · 𝐷) ↔ (𝑧 + (𝑞 · 𝐷)) = 𝑁)) | |
| 15 | 13, 14 | mp3an1 1451 | . . . . . . . . 9 ⊢ ((𝑧 ∈ ℂ ∧ (𝑞 · 𝐷) ∈ ℂ) → ((𝑁 − 𝑧) = (𝑞 · 𝐷) ↔ (𝑧 + (𝑞 · 𝐷)) = 𝑁)) |
| 16 | addcom 11333 | . . . . . . . . . 10 ⊢ ((𝑧 ∈ ℂ ∧ (𝑞 · 𝐷) ∈ ℂ) → (𝑧 + (𝑞 · 𝐷)) = ((𝑞 · 𝐷) + 𝑧)) | |
| 17 | 16 | eqeq1d 2739 | . . . . . . . . 9 ⊢ ((𝑧 ∈ ℂ ∧ (𝑞 · 𝐷) ∈ ℂ) → ((𝑧 + (𝑞 · 𝐷)) = 𝑁 ↔ ((𝑞 · 𝐷) + 𝑧) = 𝑁)) |
| 18 | 15, 17 | bitrd 279 | . . . . . . . 8 ⊢ ((𝑧 ∈ ℂ ∧ (𝑞 · 𝐷) ∈ ℂ) → ((𝑁 − 𝑧) = (𝑞 · 𝐷) ↔ ((𝑞 · 𝐷) + 𝑧) = 𝑁)) |
| 19 | 8, 11, 18 | syl2an 597 | . . . . . . 7 ⊢ ((𝑧 ∈ ℕ0 ∧ 𝑞 ∈ ℤ) → ((𝑁 − 𝑧) = (𝑞 · 𝐷) ↔ ((𝑞 · 𝐷) + 𝑧) = 𝑁)) |
| 20 | eqcom 2744 | . . . . . . 7 ⊢ ((𝑁 − 𝑧) = (𝑞 · 𝐷) ↔ (𝑞 · 𝐷) = (𝑁 − 𝑧)) | |
| 21 | eqcom 2744 | . . . . . . 7 ⊢ (((𝑞 · 𝐷) + 𝑧) = 𝑁 ↔ 𝑁 = ((𝑞 · 𝐷) + 𝑧)) | |
| 22 | 19, 20, 21 | 3bitr3g 313 | . . . . . 6 ⊢ ((𝑧 ∈ ℕ0 ∧ 𝑞 ∈ ℤ) → ((𝑞 · 𝐷) = (𝑁 − 𝑧) ↔ 𝑁 = ((𝑞 · 𝐷) + 𝑧))) |
| 23 | 22 | rexbidva 3160 | . . . . 5 ⊢ (𝑧 ∈ ℕ0 → (∃𝑞 ∈ ℤ (𝑞 · 𝐷) = (𝑁 − 𝑧) ↔ ∃𝑞 ∈ ℤ 𝑁 = ((𝑞 · 𝐷) + 𝑧))) |
| 24 | 7, 23 | bitrd 279 | . . . 4 ⊢ (𝑧 ∈ ℕ0 → (𝐷 ∥ (𝑁 − 𝑧) ↔ ∃𝑞 ∈ ℤ 𝑁 = ((𝑞 · 𝐷) + 𝑧))) |
| 25 | 24 | pm5.32i 574 | . . 3 ⊢ ((𝑧 ∈ ℕ0 ∧ 𝐷 ∥ (𝑁 − 𝑧)) ↔ (𝑧 ∈ ℕ0 ∧ ∃𝑞 ∈ ℤ 𝑁 = ((𝑞 · 𝐷) + 𝑧))) |
| 26 | oveq2 7378 | . . . . 5 ⊢ (𝑟 = 𝑧 → (𝑁 − 𝑟) = (𝑁 − 𝑧)) | |
| 27 | 26 | breq2d 5112 | . . . 4 ⊢ (𝑟 = 𝑧 → (𝐷 ∥ (𝑁 − 𝑟) ↔ 𝐷 ∥ (𝑁 − 𝑧))) |
| 28 | divalglem2.4 | . . . 4 ⊢ 𝑆 = {𝑟 ∈ ℕ0 ∣ 𝐷 ∥ (𝑁 − 𝑟)} | |
| 29 | 27, 28 | elrab2 3651 | . . 3 ⊢ (𝑧 ∈ 𝑆 ↔ (𝑧 ∈ ℕ0 ∧ 𝐷 ∥ (𝑁 − 𝑧))) |
| 30 | oveq2 7378 | . . . . . 6 ⊢ (𝑟 = 𝑧 → ((𝑞 · 𝐷) + 𝑟) = ((𝑞 · 𝐷) + 𝑧)) | |
| 31 | 30 | eqeq2d 2748 | . . . . 5 ⊢ (𝑟 = 𝑧 → (𝑁 = ((𝑞 · 𝐷) + 𝑟) ↔ 𝑁 = ((𝑞 · 𝐷) + 𝑧))) |
| 32 | 31 | rexbidv 3162 | . . . 4 ⊢ (𝑟 = 𝑧 → (∃𝑞 ∈ ℤ 𝑁 = ((𝑞 · 𝐷) + 𝑟) ↔ ∃𝑞 ∈ ℤ 𝑁 = ((𝑞 · 𝐷) + 𝑧))) |
| 33 | 32 | elrab 3648 | . . 3 ⊢ (𝑧 ∈ {𝑟 ∈ ℕ0 ∣ ∃𝑞 ∈ ℤ 𝑁 = ((𝑞 · 𝐷) + 𝑟)} ↔ (𝑧 ∈ ℕ0 ∧ ∃𝑞 ∈ ℤ 𝑁 = ((𝑞 · 𝐷) + 𝑧))) |
| 34 | 25, 29, 33 | 3bitr4i 303 | . 2 ⊢ (𝑧 ∈ 𝑆 ↔ 𝑧 ∈ {𝑟 ∈ ℕ0 ∣ ∃𝑞 ∈ ℤ 𝑁 = ((𝑞 · 𝐷) + 𝑟)}) |
| 35 | 34 | eqriv 2734 | 1 ⊢ 𝑆 = {𝑟 ∈ ℕ0 ∣ ∃𝑞 ∈ ℤ 𝑁 = ((𝑞 · 𝐷) + 𝑟)} |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ≠ wne 2933 ∃wrex 3062 {crab 3401 class class class wbr 5100 (class class class)co 7370 ℂcc 11038 0cc0 11040 + caddc 11043 · cmul 11045 − cmin 11378 ℕ0cn0 12415 ℤcz 12502 ∥ cdvds 16193 |
| 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 2709 ax-sep 5245 ax-nul 5255 ax-pow 5314 ax-pr 5381 ax-un 7692 ax-resscn 11097 ax-1cn 11098 ax-icn 11099 ax-addcl 11100 ax-addrcl 11101 ax-mulcl 11102 ax-mulrcl 11103 ax-mulcom 11104 ax-addass 11105 ax-mulass 11106 ax-distr 11107 ax-i2m1 11108 ax-1ne0 11109 ax-1rid 11110 ax-rnegex 11111 ax-rrecex 11112 ax-cnre 11113 ax-pre-lttri 11114 ax-pre-lttrn 11115 ax-pre-ltadd 11116 ax-pre-mulgt0 11117 |
| 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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-reu 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-pss 3923 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-iun 4950 df-br 5101 df-opab 5163 df-mpt 5182 df-tr 5208 df-id 5529 df-eprel 5534 df-po 5542 df-so 5543 df-fr 5587 df-we 5589 df-xp 5640 df-rel 5641 df-cnv 5642 df-co 5643 df-dm 5644 df-rn 5645 df-res 5646 df-ima 5647 df-pred 6269 df-ord 6330 df-on 6331 df-lim 6332 df-suc 6333 df-iota 6458 df-fun 6504 df-fn 6505 df-f 6506 df-f1 6507 df-fo 6508 df-f1o 6509 df-fv 6510 df-riota 7327 df-ov 7373 df-oprab 7374 df-mpo 7375 df-om 7821 df-2nd 7946 df-frecs 8235 df-wrecs 8266 df-recs 8315 df-rdg 8353 df-er 8647 df-en 8898 df-dom 8899 df-sdom 8900 df-pnf 11182 df-mnf 11183 df-xr 11184 df-ltxr 11185 df-le 11186 df-sub 11380 df-neg 11381 df-nn 12160 df-n0 12416 df-z 12503 df-dvds 16194 |
| This theorem is referenced by: divalglem10 16343 |
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