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| Mirrors > Home > ILE Home > Th. List > dvdsrzring | GIF version | ||
| Description: Ring divisibility in the ring of integers corresponds to ordinary divisibility in ℤ. (Contributed by Stefan O'Rear, 3-Jan-2015.) (Revised by AV, 9-Jun-2019.) |
| Ref | Expression |
|---|---|
| dvdsrzring | ⊢ ∥ = (∥r‘ℤring) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simpl 109 | . . . . 5 ⊢ ((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) → 𝑥 ∈ ℤ) | |
| 2 | 1 | anim1i 340 | . . . 4 ⊢ (((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦) → (𝑥 ∈ ℤ ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)) |
| 3 | simpl 109 | . . . . 5 ⊢ ((𝑥 ∈ ℤ ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦) → 𝑥 ∈ ℤ) | |
| 4 | zmulcl 9630 | . . . . . . . . 9 ⊢ ((𝑧 ∈ ℤ ∧ 𝑥 ∈ ℤ) → (𝑧 · 𝑥) ∈ ℤ) | |
| 5 | 4 | ancoms 268 | . . . . . . . 8 ⊢ ((𝑥 ∈ ℤ ∧ 𝑧 ∈ ℤ) → (𝑧 · 𝑥) ∈ ℤ) |
| 6 | eleq1 2295 | . . . . . . . 8 ⊢ ((𝑧 · 𝑥) = 𝑦 → ((𝑧 · 𝑥) ∈ ℤ ↔ 𝑦 ∈ ℤ)) | |
| 7 | 5, 6 | syl5ibcom 155 | . . . . . . 7 ⊢ ((𝑥 ∈ ℤ ∧ 𝑧 ∈ ℤ) → ((𝑧 · 𝑥) = 𝑦 → 𝑦 ∈ ℤ)) |
| 8 | 7 | rexlimdva 2660 | . . . . . 6 ⊢ (𝑥 ∈ ℤ → (∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦 → 𝑦 ∈ ℤ)) |
| 9 | 8 | imp 124 | . . . . 5 ⊢ ((𝑥 ∈ ℤ ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦) → 𝑦 ∈ ℤ) |
| 10 | simpr 110 | . . . . 5 ⊢ ((𝑥 ∈ ℤ ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦) → ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦) | |
| 11 | 3, 9, 10 | jca31 309 | . . . 4 ⊢ ((𝑥 ∈ ℤ ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦) → ((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)) |
| 12 | 2, 11 | impbii 126 | . . 3 ⊢ (((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦) ↔ (𝑥 ∈ ℤ ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)) |
| 13 | 12 | opabbii 4176 | . 2 ⊢ {〈𝑥, 𝑦〉 ∣ ((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)} = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ ℤ ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)} |
| 14 | df-dvds 12470 | . 2 ⊢ ∥ = {〈𝑥, 𝑦〉 ∣ ((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)} | |
| 15 | zringbas 14736 | . . . . 5 ⊢ ℤ = (Base‘ℤring) | |
| 16 | 15 | a1i 9 | . . . 4 ⊢ (⊤ → ℤ = (Base‘ℤring)) |
| 17 | eqidd 2233 | . . . 4 ⊢ (⊤ → (∥r‘ℤring) = (∥r‘ℤring)) | |
| 18 | zringring 14733 | . . . . 5 ⊢ ℤring ∈ Ring | |
| 19 | ringsrg 14183 | . . . . 5 ⊢ (ℤring ∈ Ring → ℤring ∈ SRing) | |
| 20 | 18, 19 | mp1i 10 | . . . 4 ⊢ (⊤ → ℤring ∈ SRing) |
| 21 | zringmulr 14739 | . . . . 5 ⊢ · = (.r‘ℤring) | |
| 22 | 21 | a1i 9 | . . . 4 ⊢ (⊤ → · = (.r‘ℤring)) |
| 23 | 16, 17, 20, 22 | dvdsrvald 14230 | . . 3 ⊢ (⊤ → (∥r‘ℤring) = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ ℤ ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)}) |
| 24 | 23 | mptru 1407 | . 2 ⊢ (∥r‘ℤring) = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ ℤ ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)} |
| 25 | 13, 14, 24 | 3eqtr4i 2263 | 1 ⊢ ∥ = (∥r‘ℤring) |
| Colors of variables: wff set class |
| Syntax hints: ∧ wa 104 = wceq 1398 ⊤wtru 1399 ∈ wcel 2203 ∃wrex 2521 {copab 4169 ‘cfv 5351 (class class class)co 6049 · cmul 8131 ℤcz 9576 ∥ cdvds 12469 Basecbs 13204 .rcmulr 13283 SRingcsrg 14099 Ringcrg 14132 ∥rcdsr 14222 ℤringczring 14730 |
| 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 2205 ax-14 2206 ax-ext 2214 ax-coll 4224 ax-sep 4227 ax-pow 4286 ax-pr 4321 ax-un 4553 ax-setind 4658 ax-cnex 8217 ax-resscn 8218 ax-1cn 8219 ax-1re 8220 ax-icn 8221 ax-addcl 8222 ax-addrcl 8223 ax-mulcl 8224 ax-mulrcl 8225 ax-addcom 8226 ax-mulcom 8227 ax-addass 8228 ax-mulass 8229 ax-distr 8230 ax-i2m1 8231 ax-0lt1 8232 ax-1rid 8233 ax-0id 8234 ax-rnegex 8235 ax-precex 8236 ax-cnre 8237 ax-pre-ltirr 8238 ax-pre-ltwlin 8239 ax-pre-lttrn 8240 ax-pre-apti 8241 ax-pre-ltadd 8242 ax-pre-mulgt0 8243 ax-addf 8248 ax-mulf 8249 |
| This theorem depends on definitions: df-bi 117 df-3or 1006 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ne 2413 df-nel 2508 df-ral 2525 df-rex 2526 df-reu 2527 df-rmo 2528 df-rab 2529 df-v 2814 df-sbc 3042 df-csb 3138 df-dif 3212 df-un 3214 df-in 3216 df-ss 3223 df-nul 3508 df-pw 3670 df-sn 3694 df-pr 3695 df-tp 3696 df-op 3697 df-uni 3914 df-int 3949 df-iun 3992 df-br 4109 df-opab 4171 df-mpt 4172 df-id 4413 df-xp 4754 df-rel 4755 df-cnv 4756 df-co 4757 df-dm 4758 df-rn 4759 df-res 4760 df-ima 4761 df-iota 5311 df-fun 5353 df-fn 5354 df-f 5355 df-f1 5356 df-fo 5357 df-f1o 5358 df-fv 5359 df-riota 6002 df-ov 6052 df-oprab 6053 df-mpo 6054 df-1st 6333 df-2nd 6334 df-pnf 8309 df-mnf 8310 df-xr 8311 df-ltxr 8312 df-le 8313 df-sub 8445 df-neg 8446 df-reap 8848 df-inn 9237 df-2 9295 df-3 9296 df-4 9297 df-5 9298 df-6 9299 df-7 9300 df-8 9301 df-9 9302 df-n0 9496 df-z 9577 df-dec 9709 df-uz 9853 df-rp 9986 df-fz 10342 df-cj 11523 df-abs 11680 df-dvds 12470 df-struct 13206 df-ndx 13207 df-slot 13208 df-base 13210 df-sets 13211 df-iress 13212 df-plusg 13295 df-mulr 13296 df-starv 13297 df-tset 13301 df-ple 13302 df-ds 13304 df-unif 13305 df-0g 13463 df-topgen 13465 df-mgm 13561 df-sgrp 13607 df-mnd 13622 df-grp 13708 df-minusg 13709 df-subg 13879 df-cmn 13995 df-abl 13996 df-mgp 14057 df-ur 14096 df-srg 14100 df-ring 14134 df-cring 14135 df-dvdsr 14225 df-subrg 14356 df-bl 14686 df-mopn 14687 df-fg 14689 df-metu 14690 df-cnfld 14697 df-zring 14731 |
| This theorem is referenced by: zndvds 14789 |
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