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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 9516 | . . . . . . . . 9 ⊢ ((𝑧 ∈ ℤ ∧ 𝑥 ∈ ℤ) → (𝑧 · 𝑥) ∈ ℤ) | |
| 5 | 4 | ancoms 268 | . . . . . . . 8 ⊢ ((𝑥 ∈ ℤ ∧ 𝑧 ∈ ℤ) → (𝑧 · 𝑥) ∈ ℤ) |
| 6 | eleq1 2292 | . . . . . . . 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 2648 | . . . . . 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 4151 | . 2 ⊢ {〈𝑥, 𝑦〉 ∣ ((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)} = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ ℤ ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)} |
| 14 | df-dvds 12320 | . 2 ⊢ ∥ = {〈𝑥, 𝑦〉 ∣ ((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)} | |
| 15 | zringbas 14581 | . . . . 5 ⊢ ℤ = (Base‘ℤring) | |
| 16 | 15 | a1i 9 | . . . 4 ⊢ (⊤ → ℤ = (Base‘ℤring)) |
| 17 | eqidd 2230 | . . . 4 ⊢ (⊤ → (∥r‘ℤring) = (∥r‘ℤring)) | |
| 18 | zringring 14578 | . . . . 5 ⊢ ℤring ∈ Ring | |
| 19 | ringsrg 14031 | . . . . 5 ⊢ (ℤring ∈ Ring → ℤring ∈ SRing) | |
| 20 | 18, 19 | mp1i 10 | . . . 4 ⊢ (⊤ → ℤring ∈ SRing) |
| 21 | zringmulr 14584 | . . . . 5 ⊢ · = (.r‘ℤring) | |
| 22 | 21 | a1i 9 | . . . 4 ⊢ (⊤ → · = (.r‘ℤring)) |
| 23 | 16, 17, 20, 22 | dvdsrvald 14078 | . . 3 ⊢ (⊤ → (∥r‘ℤring) = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ ℤ ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)}) |
| 24 | 23 | mptru 1404 | . 2 ⊢ (∥r‘ℤring) = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ ℤ ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)} |
| 25 | 13, 14, 24 | 3eqtr4i 2260 | 1 ⊢ ∥ = (∥r‘ℤring) |
| Colors of variables: wff set class |
| Syntax hints: ∧ wa 104 = wceq 1395 ⊤wtru 1396 ∈ wcel 2200 ∃wrex 2509 {copab 4144 ‘cfv 5321 (class class class)co 6010 · cmul 8020 ℤcz 9462 ∥ cdvds 12319 Basecbs 13053 .rcmulr 13132 SRingcsrg 13947 Ringcrg 13980 ∥rcdsr 14070 ℤringczring 14575 |
| 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 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-coll 4199 ax-sep 4202 ax-pow 4259 ax-pr 4294 ax-un 4525 ax-setind 4630 ax-cnex 8106 ax-resscn 8107 ax-1cn 8108 ax-1re 8109 ax-icn 8110 ax-addcl 8111 ax-addrcl 8112 ax-mulcl 8113 ax-mulrcl 8114 ax-addcom 8115 ax-mulcom 8116 ax-addass 8117 ax-mulass 8118 ax-distr 8119 ax-i2m1 8120 ax-0lt1 8121 ax-1rid 8122 ax-0id 8123 ax-rnegex 8124 ax-precex 8125 ax-cnre 8126 ax-pre-ltirr 8127 ax-pre-ltwlin 8128 ax-pre-lttrn 8129 ax-pre-apti 8130 ax-pre-ltadd 8131 ax-pre-mulgt0 8132 ax-addf 8137 ax-mulf 8138 |
| This theorem depends on definitions: df-bi 117 df-3or 1003 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-nel 2496 df-ral 2513 df-rex 2514 df-reu 2515 df-rmo 2516 df-rab 2517 df-v 2801 df-sbc 3029 df-csb 3125 df-dif 3199 df-un 3201 df-in 3203 df-ss 3210 df-nul 3492 df-pw 3651 df-sn 3672 df-pr 3673 df-tp 3674 df-op 3675 df-uni 3889 df-int 3924 df-iun 3967 df-br 4084 df-opab 4146 df-mpt 4147 df-id 4385 df-xp 4726 df-rel 4727 df-cnv 4728 df-co 4729 df-dm 4730 df-rn 4731 df-res 4732 df-ima 4733 df-iota 5281 df-fun 5323 df-fn 5324 df-f 5325 df-f1 5326 df-fo 5327 df-f1o 5328 df-fv 5329 df-riota 5963 df-ov 6013 df-oprab 6014 df-mpo 6015 df-1st 6295 df-2nd 6296 df-pnf 8199 df-mnf 8200 df-xr 8201 df-ltxr 8202 df-le 8203 df-sub 8335 df-neg 8336 df-reap 8738 df-inn 9127 df-2 9185 df-3 9186 df-4 9187 df-5 9188 df-6 9189 df-7 9190 df-8 9191 df-9 9192 df-n0 9386 df-z 9463 df-dec 9595 df-uz 9739 df-rp 9867 df-fz 10222 df-cj 11374 df-abs 11531 df-dvds 12320 df-struct 13055 df-ndx 13056 df-slot 13057 df-base 13059 df-sets 13060 df-iress 13061 df-plusg 13144 df-mulr 13145 df-starv 13146 df-tset 13150 df-ple 13151 df-ds 13153 df-unif 13154 df-0g 13312 df-topgen 13314 df-mgm 13410 df-sgrp 13456 df-mnd 13471 df-grp 13557 df-minusg 13558 df-subg 13728 df-cmn 13844 df-abl 13845 df-mgp 13905 df-ur 13944 df-srg 13948 df-ring 13982 df-cring 13983 df-dvdsr 14073 df-subrg 14204 df-bl 14531 df-mopn 14532 df-fg 14534 df-metu 14535 df-cnfld 14542 df-zring 14576 |
| This theorem is referenced by: zndvds 14634 |
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