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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 9576 | . . . . . . . . 9 ⊢ ((𝑧 ∈ ℤ ∧ 𝑥 ∈ ℤ) → (𝑧 · 𝑥) ∈ ℤ) | |
| 5 | 4 | ancoms 268 | . . . . . . . 8 ⊢ ((𝑥 ∈ ℤ ∧ 𝑧 ∈ ℤ) → (𝑧 · 𝑥) ∈ ℤ) |
| 6 | eleq1 2294 | . . . . . . . 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 2651 | . . . . . 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 4161 | . 2 ⊢ {〈𝑥, 𝑦〉 ∣ ((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)} = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ ℤ ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)} |
| 14 | df-dvds 12410 | . 2 ⊢ ∥ = {〈𝑥, 𝑦〉 ∣ ((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)} | |
| 15 | zringbas 14672 | . . . . 5 ⊢ ℤ = (Base‘ℤring) | |
| 16 | 15 | a1i 9 | . . . 4 ⊢ (⊤ → ℤ = (Base‘ℤring)) |
| 17 | eqidd 2232 | . . . 4 ⊢ (⊤ → (∥r‘ℤring) = (∥r‘ℤring)) | |
| 18 | zringring 14669 | . . . . 5 ⊢ ℤring ∈ Ring | |
| 19 | ringsrg 14122 | . . . . 5 ⊢ (ℤring ∈ Ring → ℤring ∈ SRing) | |
| 20 | 18, 19 | mp1i 10 | . . . 4 ⊢ (⊤ → ℤring ∈ SRing) |
| 21 | zringmulr 14675 | . . . . 5 ⊢ · = (.r‘ℤring) | |
| 22 | 21 | a1i 9 | . . . 4 ⊢ (⊤ → · = (.r‘ℤring)) |
| 23 | 16, 17, 20, 22 | dvdsrvald 14169 | . . 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 2262 | 1 ⊢ ∥ = (∥r‘ℤring) |
| Colors of variables: wff set class |
| Syntax hints: ∧ wa 104 = wceq 1398 ⊤wtru 1399 ∈ wcel 2202 ∃wrex 2512 {copab 4154 ‘cfv 5333 (class class class)co 6028 · cmul 8080 ℤcz 9522 ∥ cdvds 12409 Basecbs 13143 .rcmulr 13222 SRingcsrg 14038 Ringcrg 14071 ∥rcdsr 14161 ℤringczring 14666 |
| 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-coll 4209 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-addf 8197 ax-mulf 8198 |
| 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 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-csb 3129 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-nul 3497 df-pw 3658 df-sn 3679 df-pr 3680 df-tp 3681 df-op 3682 df-uni 3899 df-int 3934 df-iun 3977 df-br 4094 df-opab 4156 df-mpt 4157 df-id 4396 df-xp 4737 df-rel 4738 df-cnv 4739 df-co 4740 df-dm 4741 df-rn 4742 df-res 4743 df-ima 4744 df-iota 5293 df-fun 5335 df-fn 5336 df-f 5337 df-f1 5338 df-fo 5339 df-f1o 5340 df-fv 5341 df-riota 5981 df-ov 6031 df-oprab 6032 df-mpo 6033 df-1st 6312 df-2nd 6313 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-inn 9187 df-2 9245 df-3 9246 df-4 9247 df-5 9248 df-6 9249 df-7 9250 df-8 9251 df-9 9252 df-n0 9446 df-z 9523 df-dec 9655 df-uz 9799 df-rp 9932 df-fz 10287 df-cj 11463 df-abs 11620 df-dvds 12410 df-struct 13145 df-ndx 13146 df-slot 13147 df-base 13149 df-sets 13150 df-iress 13151 df-plusg 13234 df-mulr 13235 df-starv 13236 df-tset 13240 df-ple 13241 df-ds 13243 df-unif 13244 df-0g 13402 df-topgen 13404 df-mgm 13500 df-sgrp 13546 df-mnd 13561 df-grp 13647 df-minusg 13648 df-subg 13818 df-cmn 13934 df-abl 13935 df-mgp 13996 df-ur 14035 df-srg 14039 df-ring 14073 df-cring 14074 df-dvdsr 14164 df-subrg 14295 df-bl 14622 df-mopn 14623 df-fg 14625 df-metu 14626 df-cnfld 14633 df-zring 14667 |
| This theorem is referenced by: zndvds 14725 |
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