![]() |
Mathbox for Thierry Arnoux |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > MPE Home > Th. List > Mathboxes > dvdsruassoi | Structured version Visualization version GIF version |
Description: If two elements 𝑋 and 𝑌 of a ring 𝑅 are unit multiples, then they are associates, i.e. each divides the other. (Contributed by Thierry Arnoux, 22-Mar-2025.) |
Ref | Expression |
---|---|
dvdsrspss.b | ⊢ 𝐵 = (Base‘𝑅) |
dvdsrspss.k | ⊢ 𝐾 = (RSpan‘𝑅) |
dvdsrspss.d | ⊢ ∥ = (∥r‘𝑅) |
dvdsrspss.x | ⊢ (𝜑 → 𝑋 ∈ 𝐵) |
dvdsrspss.y | ⊢ (𝜑 → 𝑌 ∈ 𝐵) |
dvdsruassoi.1 | ⊢ 𝑈 = (Unit‘𝑅) |
dvdsruassoi.2 | ⊢ · = (.r‘𝑅) |
dvdsruassoi.r | ⊢ (𝜑 → 𝑅 ∈ Ring) |
dvdsruassoi.3 | ⊢ (𝜑 → 𝑉 ∈ 𝑈) |
dvdsruassoi.4 | ⊢ (𝜑 → (𝑉 · 𝑋) = 𝑌) |
Ref | Expression |
---|---|
dvdsruassoi | ⊢ (𝜑 → (𝑋 ∥ 𝑌 ∧ 𝑌 ∥ 𝑋)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dvdsrspss.b | . . . . 5 ⊢ 𝐵 = (Base‘𝑅) | |
2 | dvdsruassoi.1 | . . . . 5 ⊢ 𝑈 = (Unit‘𝑅) | |
3 | 1, 2 | unitss 20402 | . . . 4 ⊢ 𝑈 ⊆ 𝐵 |
4 | dvdsruassoi.3 | . . . 4 ⊢ (𝜑 → 𝑉 ∈ 𝑈) | |
5 | 3, 4 | sselid 3996 | . . 3 ⊢ (𝜑 → 𝑉 ∈ 𝐵) |
6 | oveq1 7445 | . . . . 5 ⊢ (𝑡 = 𝑉 → (𝑡 · 𝑋) = (𝑉 · 𝑋)) | |
7 | 6 | eqeq1d 2739 | . . . 4 ⊢ (𝑡 = 𝑉 → ((𝑡 · 𝑋) = 𝑌 ↔ (𝑉 · 𝑋) = 𝑌)) |
8 | 7 | adantl 481 | . . 3 ⊢ ((𝜑 ∧ 𝑡 = 𝑉) → ((𝑡 · 𝑋) = 𝑌 ↔ (𝑉 · 𝑋) = 𝑌)) |
9 | dvdsruassoi.4 | . . 3 ⊢ (𝜑 → (𝑉 · 𝑋) = 𝑌) | |
10 | 5, 8, 9 | rspcedvd 3627 | . 2 ⊢ (𝜑 → ∃𝑡 ∈ 𝐵 (𝑡 · 𝑋) = 𝑌) |
11 | dvdsruassoi.r | . . . 4 ⊢ (𝜑 → 𝑅 ∈ Ring) | |
12 | eqid 2737 | . . . . 5 ⊢ (invr‘𝑅) = (invr‘𝑅) | |
13 | 2, 12, 1 | ringinvcl 20418 | . . . 4 ⊢ ((𝑅 ∈ Ring ∧ 𝑉 ∈ 𝑈) → ((invr‘𝑅)‘𝑉) ∈ 𝐵) |
14 | 11, 4, 13 | syl2anc 584 | . . 3 ⊢ (𝜑 → ((invr‘𝑅)‘𝑉) ∈ 𝐵) |
15 | oveq1 7445 | . . . . 5 ⊢ (𝑠 = ((invr‘𝑅)‘𝑉) → (𝑠 · 𝑌) = (((invr‘𝑅)‘𝑉) · 𝑌)) | |
16 | 15 | eqeq1d 2739 | . . . 4 ⊢ (𝑠 = ((invr‘𝑅)‘𝑉) → ((𝑠 · 𝑌) = 𝑋 ↔ (((invr‘𝑅)‘𝑉) · 𝑌) = 𝑋)) |
17 | 16 | adantl 481 | . . 3 ⊢ ((𝜑 ∧ 𝑠 = ((invr‘𝑅)‘𝑉)) → ((𝑠 · 𝑌) = 𝑋 ↔ (((invr‘𝑅)‘𝑉) · 𝑌) = 𝑋)) |
18 | dvdsruassoi.2 | . . . . 5 ⊢ · = (.r‘𝑅) | |
19 | dvdsrspss.x | . . . . 5 ⊢ (𝜑 → 𝑋 ∈ 𝐵) | |
20 | 1, 18, 11, 14, 5, 19 | ringassd 20284 | . . . 4 ⊢ (𝜑 → ((((invr‘𝑅)‘𝑉) · 𝑉) · 𝑋) = (((invr‘𝑅)‘𝑉) · (𝑉 · 𝑋))) |
21 | eqid 2737 | . . . . . . . 8 ⊢ (1r‘𝑅) = (1r‘𝑅) | |
22 | 2, 12, 18, 21 | unitlinv 20419 | . . . . . . 7 ⊢ ((𝑅 ∈ Ring ∧ 𝑉 ∈ 𝑈) → (((invr‘𝑅)‘𝑉) · 𝑉) = (1r‘𝑅)) |
23 | 11, 4, 22 | syl2anc 584 | . . . . . 6 ⊢ (𝜑 → (((invr‘𝑅)‘𝑉) · 𝑉) = (1r‘𝑅)) |
24 | 23 | oveq1d 7453 | . . . . 5 ⊢ (𝜑 → ((((invr‘𝑅)‘𝑉) · 𝑉) · 𝑋) = ((1r‘𝑅) · 𝑋)) |
25 | 1, 18, 21, 11, 19 | ringlidmd 20295 | . . . . 5 ⊢ (𝜑 → ((1r‘𝑅) · 𝑋) = 𝑋) |
26 | 24, 25 | eqtrd 2777 | . . . 4 ⊢ (𝜑 → ((((invr‘𝑅)‘𝑉) · 𝑉) · 𝑋) = 𝑋) |
27 | 9 | oveq2d 7454 | . . . 4 ⊢ (𝜑 → (((invr‘𝑅)‘𝑉) · (𝑉 · 𝑋)) = (((invr‘𝑅)‘𝑉) · 𝑌)) |
28 | 20, 26, 27 | 3eqtr3rd 2786 | . . 3 ⊢ (𝜑 → (((invr‘𝑅)‘𝑉) · 𝑌) = 𝑋) |
29 | 14, 17, 28 | rspcedvd 3627 | . 2 ⊢ (𝜑 → ∃𝑠 ∈ 𝐵 (𝑠 · 𝑌) = 𝑋) |
30 | dvdsrspss.d | . . . . 5 ⊢ ∥ = (∥r‘𝑅) | |
31 | 1, 30, 18 | dvdsr 20388 | . . . 4 ⊢ (𝑋 ∥ 𝑌 ↔ (𝑋 ∈ 𝐵 ∧ ∃𝑡 ∈ 𝐵 (𝑡 · 𝑋) = 𝑌)) |
32 | 19 | biantrurd 532 | . . . 4 ⊢ (𝜑 → (∃𝑡 ∈ 𝐵 (𝑡 · 𝑋) = 𝑌 ↔ (𝑋 ∈ 𝐵 ∧ ∃𝑡 ∈ 𝐵 (𝑡 · 𝑋) = 𝑌))) |
33 | 31, 32 | bitr4id 290 | . . 3 ⊢ (𝜑 → (𝑋 ∥ 𝑌 ↔ ∃𝑡 ∈ 𝐵 (𝑡 · 𝑋) = 𝑌)) |
34 | 1, 30, 18 | dvdsr 20388 | . . . 4 ⊢ (𝑌 ∥ 𝑋 ↔ (𝑌 ∈ 𝐵 ∧ ∃𝑠 ∈ 𝐵 (𝑠 · 𝑌) = 𝑋)) |
35 | dvdsrspss.y | . . . . 5 ⊢ (𝜑 → 𝑌 ∈ 𝐵) | |
36 | 35 | biantrurd 532 | . . . 4 ⊢ (𝜑 → (∃𝑠 ∈ 𝐵 (𝑠 · 𝑌) = 𝑋 ↔ (𝑌 ∈ 𝐵 ∧ ∃𝑠 ∈ 𝐵 (𝑠 · 𝑌) = 𝑋))) |
37 | 34, 36 | bitr4id 290 | . . 3 ⊢ (𝜑 → (𝑌 ∥ 𝑋 ↔ ∃𝑠 ∈ 𝐵 (𝑠 · 𝑌) = 𝑋)) |
38 | 33, 37 | anbi12d 632 | . 2 ⊢ (𝜑 → ((𝑋 ∥ 𝑌 ∧ 𝑌 ∥ 𝑋) ↔ (∃𝑡 ∈ 𝐵 (𝑡 · 𝑋) = 𝑌 ∧ ∃𝑠 ∈ 𝐵 (𝑠 · 𝑌) = 𝑋))) |
39 | 10, 29, 38 | mpbir2and 713 | 1 ⊢ (𝜑 → (𝑋 ∥ 𝑌 ∧ 𝑌 ∥ 𝑋)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1539 ∈ wcel 2108 ∃wrex 3070 class class class wbr 5151 ‘cfv 6569 (class class class)co 7438 Basecbs 17254 .rcmulr 17308 1rcur 20208 Ringcrg 20260 ∥rcdsr 20380 Unitcui 20381 invrcinvr 20413 RSpancrsp 21244 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1794 ax-4 1808 ax-5 1910 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2157 ax-12 2177 ax-ext 2708 ax-rep 5288 ax-sep 5305 ax-nul 5315 ax-pow 5374 ax-pr 5441 ax-un 7761 ax-cnex 11218 ax-resscn 11219 ax-1cn 11220 ax-icn 11221 ax-addcl 11222 ax-addrcl 11223 ax-mulcl 11224 ax-mulrcl 11225 ax-mulcom 11226 ax-addass 11227 ax-mulass 11228 ax-distr 11229 ax-i2m1 11230 ax-1ne0 11231 ax-1rid 11232 ax-rnegex 11233 ax-rrecex 11234 ax-cnre 11235 ax-pre-lttri 11236 ax-pre-lttrn 11237 ax-pre-ltadd 11238 ax-pre-mulgt0 11239 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1542 df-fal 1552 df-ex 1779 df-nf 1783 df-sb 2065 df-mo 2540 df-eu 2569 df-clab 2715 df-cleq 2729 df-clel 2816 df-nfc 2892 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3380 df-reu 3381 df-rab 3437 df-v 3483 df-sbc 3795 df-csb 3912 df-dif 3969 df-un 3971 df-in 3973 df-ss 3983 df-pss 3986 df-nul 4343 df-if 4535 df-pw 4610 df-sn 4635 df-pr 4637 df-op 4641 df-uni 4916 df-iun 5001 df-br 5152 df-opab 5214 df-mpt 5235 df-tr 5269 df-id 5587 df-eprel 5593 df-po 5601 df-so 5602 df-fr 5645 df-we 5647 df-xp 5699 df-rel 5700 df-cnv 5701 df-co 5702 df-dm 5703 df-rn 5704 df-res 5705 df-ima 5706 df-pred 6329 df-ord 6395 df-on 6396 df-lim 6397 df-suc 6398 df-iota 6522 df-fun 6571 df-fn 6572 df-f 6573 df-f1 6574 df-fo 6575 df-f1o 6576 df-fv 6577 df-riota 7395 df-ov 7441 df-oprab 7442 df-mpo 7443 df-om 7895 df-2nd 8023 df-tpos 8259 df-frecs 8314 df-wrecs 8345 df-recs 8419 df-rdg 8458 df-er 8753 df-en 8994 df-dom 8995 df-sdom 8996 df-pnf 11304 df-mnf 11305 df-xr 11306 df-ltxr 11307 df-le 11308 df-sub 11501 df-neg 11502 df-nn 12274 df-2 12336 df-3 12337 df-sets 17207 df-slot 17225 df-ndx 17237 df-base 17255 df-ress 17284 df-plusg 17320 df-mulr 17321 df-0g 17497 df-mgm 18675 df-sgrp 18754 df-mnd 18770 df-grp 18976 df-minusg 18977 df-cmn 19824 df-abl 19825 df-mgp 20162 df-rng 20180 df-ur 20209 df-ring 20262 df-oppr 20360 df-dvdsr 20383 df-unit 20384 df-invr 20414 |
This theorem is referenced by: dvdsruasso 33425 mxidlirred 33512 |
Copyright terms: Public domain | W3C validator |