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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 9323 | . . . . . . . . 9 ⊢ ((𝑧 ∈ ℤ ∧ 𝑥 ∈ ℤ) → (𝑧 · 𝑥) ∈ ℤ) | |
5 | 4 | ancoms 268 | . . . . . . . 8 ⊢ ((𝑥 ∈ ℤ ∧ 𝑧 ∈ ℤ) → (𝑧 · 𝑥) ∈ ℤ) |
6 | eleq1 2251 | . . . . . . . 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 2606 | . . . . . 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 4084 | . 2 ⊢ {〈𝑥, 𝑦〉 ∣ ((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)} = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ ℤ ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)} |
14 | df-dvds 11812 | . 2 ⊢ ∥ = {〈𝑥, 𝑦〉 ∣ ((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)} | |
15 | zringbas 13855 | . . . . 5 ⊢ ℤ = (Base‘ℤring) | |
16 | 15 | a1i 9 | . . . 4 ⊢ (⊤ → ℤ = (Base‘ℤring)) |
17 | eqidd 2189 | . . . 4 ⊢ (⊤ → (∥r‘ℤring) = (∥r‘ℤring)) | |
18 | zringring 13852 | . . . . 5 ⊢ ℤring ∈ Ring | |
19 | ringsrg 13359 | . . . . 5 ⊢ (ℤring ∈ Ring → ℤring ∈ SRing) | |
20 | 18, 19 | mp1i 10 | . . . 4 ⊢ (⊤ → ℤring ∈ SRing) |
21 | zringmulr 13858 | . . . . 5 ⊢ · = (.r‘ℤring) | |
22 | 21 | a1i 9 | . . . 4 ⊢ (⊤ → · = (.r‘ℤring)) |
23 | 16, 17, 20, 22 | dvdsrvald 13403 | . . 3 ⊢ (⊤ → (∥r‘ℤring) = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ ℤ ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)}) |
24 | 23 | mptru 1372 | . 2 ⊢ (∥r‘ℤring) = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ ℤ ∧ ∃𝑧 ∈ ℤ (𝑧 · 𝑥) = 𝑦)} |
25 | 13, 14, 24 | 3eqtr4i 2219 | 1 ⊢ ∥ = (∥r‘ℤring) |
Colors of variables: wff set class |
Syntax hints: ∧ wa 104 = wceq 1363 ⊤wtru 1364 ∈ wcel 2159 ∃wrex 2468 {copab 4077 ‘cfv 5230 (class class class)co 5890 · cmul 7833 ℤcz 9270 ∥ cdvds 11811 Basecbs 12479 .rcmulr 12555 SRingcsrg 13277 Ringcrg 13310 ∥rcdsr 13396 ℤringczring 13849 |
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 615 ax-in2 616 ax-io 710 ax-5 1457 ax-7 1458 ax-gen 1459 ax-ie1 1503 ax-ie2 1504 ax-8 1514 ax-10 1515 ax-11 1516 ax-i12 1517 ax-bndl 1519 ax-4 1520 ax-17 1536 ax-i9 1540 ax-ial 1544 ax-i5r 1545 ax-13 2161 ax-14 2162 ax-ext 2170 ax-coll 4132 ax-sep 4135 ax-pow 4188 ax-pr 4223 ax-un 4447 ax-setind 4550 ax-cnex 7919 ax-resscn 7920 ax-1cn 7921 ax-1re 7922 ax-icn 7923 ax-addcl 7924 ax-addrcl 7925 ax-mulcl 7926 ax-mulrcl 7927 ax-addcom 7928 ax-mulcom 7929 ax-addass 7930 ax-mulass 7931 ax-distr 7932 ax-i2m1 7933 ax-0lt1 7934 ax-1rid 7935 ax-0id 7936 ax-rnegex 7937 ax-precex 7938 ax-cnre 7939 ax-pre-ltirr 7940 ax-pre-ltwlin 7941 ax-pre-lttrn 7942 ax-pre-apti 7943 ax-pre-ltadd 7944 ax-pre-mulgt0 7945 ax-addf 7950 ax-mulf 7951 |
This theorem depends on definitions: df-bi 117 df-3or 980 df-3an 981 df-tru 1366 df-fal 1369 df-nf 1471 df-sb 1773 df-eu 2040 df-mo 2041 df-clab 2175 df-cleq 2181 df-clel 2184 df-nfc 2320 df-ne 2360 df-nel 2455 df-ral 2472 df-rex 2473 df-reu 2474 df-rmo 2475 df-rab 2476 df-v 2753 df-sbc 2977 df-csb 3072 df-dif 3145 df-un 3147 df-in 3149 df-ss 3156 df-nul 3437 df-pw 3591 df-sn 3612 df-pr 3613 df-tp 3614 df-op 3615 df-uni 3824 df-int 3859 df-iun 3902 df-br 4018 df-opab 4079 df-mpt 4080 df-id 4307 df-xp 4646 df-rel 4647 df-cnv 4648 df-co 4649 df-dm 4650 df-rn 4651 df-res 4652 df-ima 4653 df-iota 5192 df-fun 5232 df-fn 5233 df-f 5234 df-f1 5235 df-fo 5236 df-f1o 5237 df-fv 5238 df-riota 5846 df-ov 5893 df-oprab 5894 df-mpo 5895 df-pnf 8011 df-mnf 8012 df-xr 8013 df-ltxr 8014 df-le 8015 df-sub 8147 df-neg 8148 df-reap 8549 df-inn 8937 df-2 8995 df-3 8996 df-4 8997 df-5 8998 df-6 8999 df-7 9000 df-8 9001 df-9 9002 df-n0 9194 df-z 9271 df-dec 9402 df-uz 9546 df-fz 10026 df-cj 10868 df-dvds 11812 df-struct 12481 df-ndx 12482 df-slot 12483 df-base 12485 df-sets 12486 df-iress 12487 df-plusg 12567 df-mulr 12568 df-starv 12569 df-0g 12728 df-mgm 12797 df-sgrp 12830 df-mnd 12843 df-grp 12913 df-minusg 12914 df-subg 13074 df-cmn 13185 df-abl 13186 df-mgp 13235 df-ur 13274 df-srg 13278 df-ring 13312 df-cring 13313 df-dvdsr 13399 df-subrg 13526 df-icnfld 13825 df-zring 13850 |
This theorem is referenced by: (None) |
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