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Mirrors > Home > MPE Home > Th. List > opprunit | Structured version Visualization version GIF version |
Description: Being a unit is a symmetric property, so it transfers to the opposite ring. (Contributed by Mario Carneiro, 4-Dec-2014.) |
Ref | Expression |
---|---|
opprunit.1 | ⊢ 𝑈 = (Unit‘𝑅) |
opprunit.2 | ⊢ 𝑆 = (oppr‘𝑅) |
Ref | Expression |
---|---|
opprunit | ⊢ 𝑈 = (Unit‘𝑆) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | opprunit.2 | . . . . . . . . . . 11 ⊢ 𝑆 = (oppr‘𝑅) | |
2 | eqid 2823 | . . . . . . . . . . 11 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
3 | 1, 2 | opprbas 19381 | . . . . . . . . . 10 ⊢ (Base‘𝑅) = (Base‘𝑆) |
4 | eqid 2823 | . . . . . . . . . 10 ⊢ (.r‘𝑆) = (.r‘𝑆) | |
5 | eqid 2823 | . . . . . . . . . 10 ⊢ (oppr‘𝑆) = (oppr‘𝑆) | |
6 | eqid 2823 | . . . . . . . . . 10 ⊢ (.r‘(oppr‘𝑆)) = (.r‘(oppr‘𝑆)) | |
7 | 3, 4, 5, 6 | opprmul 19378 | . . . . . . . . 9 ⊢ (𝑦(.r‘(oppr‘𝑆))𝑥) = (𝑥(.r‘𝑆)𝑦) |
8 | eqid 2823 | . . . . . . . . . 10 ⊢ (.r‘𝑅) = (.r‘𝑅) | |
9 | 2, 8, 1, 4 | opprmul 19378 | . . . . . . . . 9 ⊢ (𝑥(.r‘𝑆)𝑦) = (𝑦(.r‘𝑅)𝑥) |
10 | 7, 9 | eqtr2i 2847 | . . . . . . . 8 ⊢ (𝑦(.r‘𝑅)𝑥) = (𝑦(.r‘(oppr‘𝑆))𝑥) |
11 | 10 | eqeq1i 2828 | . . . . . . 7 ⊢ ((𝑦(.r‘𝑅)𝑥) = (1r‘𝑅) ↔ (𝑦(.r‘(oppr‘𝑆))𝑥) = (1r‘𝑅)) |
12 | 11 | rexbii 3249 | . . . . . 6 ⊢ (∃𝑦 ∈ (Base‘𝑅)(𝑦(.r‘𝑅)𝑥) = (1r‘𝑅) ↔ ∃𝑦 ∈ (Base‘𝑅)(𝑦(.r‘(oppr‘𝑆))𝑥) = (1r‘𝑅)) |
13 | 12 | anbi2i 624 | . . . . 5 ⊢ ((𝑥 ∈ (Base‘𝑅) ∧ ∃𝑦 ∈ (Base‘𝑅)(𝑦(.r‘𝑅)𝑥) = (1r‘𝑅)) ↔ (𝑥 ∈ (Base‘𝑅) ∧ ∃𝑦 ∈ (Base‘𝑅)(𝑦(.r‘(oppr‘𝑆))𝑥) = (1r‘𝑅))) |
14 | eqid 2823 | . . . . . 6 ⊢ (∥r‘𝑅) = (∥r‘𝑅) | |
15 | 2, 14, 8 | dvdsr 19398 | . . . . 5 ⊢ (𝑥(∥r‘𝑅)(1r‘𝑅) ↔ (𝑥 ∈ (Base‘𝑅) ∧ ∃𝑦 ∈ (Base‘𝑅)(𝑦(.r‘𝑅)𝑥) = (1r‘𝑅))) |
16 | 5, 3 | opprbas 19381 | . . . . . 6 ⊢ (Base‘𝑅) = (Base‘(oppr‘𝑆)) |
17 | eqid 2823 | . . . . . 6 ⊢ (∥r‘(oppr‘𝑆)) = (∥r‘(oppr‘𝑆)) | |
18 | 16, 17, 6 | dvdsr 19398 | . . . . 5 ⊢ (𝑥(∥r‘(oppr‘𝑆))(1r‘𝑅) ↔ (𝑥 ∈ (Base‘𝑅) ∧ ∃𝑦 ∈ (Base‘𝑅)(𝑦(.r‘(oppr‘𝑆))𝑥) = (1r‘𝑅))) |
19 | 13, 15, 18 | 3bitr4i 305 | . . . 4 ⊢ (𝑥(∥r‘𝑅)(1r‘𝑅) ↔ 𝑥(∥r‘(oppr‘𝑆))(1r‘𝑅)) |
20 | 19 | anbi2ci 626 | . . 3 ⊢ ((𝑥(∥r‘𝑅)(1r‘𝑅) ∧ 𝑥(∥r‘𝑆)(1r‘𝑅)) ↔ (𝑥(∥r‘𝑆)(1r‘𝑅) ∧ 𝑥(∥r‘(oppr‘𝑆))(1r‘𝑅))) |
21 | opprunit.1 | . . . 4 ⊢ 𝑈 = (Unit‘𝑅) | |
22 | eqid 2823 | . . . 4 ⊢ (1r‘𝑅) = (1r‘𝑅) | |
23 | eqid 2823 | . . . 4 ⊢ (∥r‘𝑆) = (∥r‘𝑆) | |
24 | 21, 22, 14, 1, 23 | isunit 19409 | . . 3 ⊢ (𝑥 ∈ 𝑈 ↔ (𝑥(∥r‘𝑅)(1r‘𝑅) ∧ 𝑥(∥r‘𝑆)(1r‘𝑅))) |
25 | eqid 2823 | . . . 4 ⊢ (Unit‘𝑆) = (Unit‘𝑆) | |
26 | 1, 22 | oppr1 19386 | . . . 4 ⊢ (1r‘𝑅) = (1r‘𝑆) |
27 | 25, 26, 23, 5, 17 | isunit 19409 | . . 3 ⊢ (𝑥 ∈ (Unit‘𝑆) ↔ (𝑥(∥r‘𝑆)(1r‘𝑅) ∧ 𝑥(∥r‘(oppr‘𝑆))(1r‘𝑅))) |
28 | 20, 24, 27 | 3bitr4i 305 | . 2 ⊢ (𝑥 ∈ 𝑈 ↔ 𝑥 ∈ (Unit‘𝑆)) |
29 | 28 | eqriv 2820 | 1 ⊢ 𝑈 = (Unit‘𝑆) |
Colors of variables: wff setvar class |
Syntax hints: ∧ wa 398 = wceq 1537 ∈ wcel 2114 ∃wrex 3141 class class class wbr 5068 ‘cfv 6357 (class class class)co 7158 Basecbs 16485 .rcmulr 16568 1rcur 19253 opprcoppr 19374 ∥rcdsr 19390 Unitcui 19391 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-rep 5192 ax-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 ax-un 7463 ax-cnex 10595 ax-resscn 10596 ax-1cn 10597 ax-icn 10598 ax-addcl 10599 ax-addrcl 10600 ax-mulcl 10601 ax-mulrcl 10602 ax-mulcom 10603 ax-addass 10604 ax-mulass 10605 ax-distr 10606 ax-i2m1 10607 ax-1ne0 10608 ax-1rid 10609 ax-rnegex 10610 ax-rrecex 10611 ax-cnre 10612 ax-pre-lttri 10613 ax-pre-lttrn 10614 ax-pre-ltadd 10615 ax-pre-mulgt0 10616 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ne 3019 df-nel 3126 df-ral 3145 df-rex 3146 df-reu 3147 df-rab 3149 df-v 3498 df-sbc 3775 df-csb 3886 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-pss 3956 df-nul 4294 df-if 4470 df-pw 4543 df-sn 4570 df-pr 4572 df-tp 4574 df-op 4576 df-uni 4841 df-iun 4923 df-br 5069 df-opab 5131 df-mpt 5149 df-tr 5175 df-id 5462 df-eprel 5467 df-po 5476 df-so 5477 df-fr 5516 df-we 5518 df-xp 5563 df-rel 5564 df-cnv 5565 df-co 5566 df-dm 5567 df-rn 5568 df-res 5569 df-ima 5570 df-pred 6150 df-ord 6196 df-on 6197 df-lim 6198 df-suc 6199 df-iota 6316 df-fun 6359 df-fn 6360 df-f 6361 df-f1 6362 df-fo 6363 df-f1o 6364 df-fv 6365 df-riota 7116 df-ov 7161 df-oprab 7162 df-mpo 7163 df-om 7583 df-tpos 7894 df-wrecs 7949 df-recs 8010 df-rdg 8048 df-er 8291 df-en 8512 df-dom 8513 df-sdom 8514 df-pnf 10679 df-mnf 10680 df-xr 10681 df-ltxr 10682 df-le 10683 df-sub 10874 df-neg 10875 df-nn 11641 df-2 11703 df-3 11704 df-ndx 16488 df-slot 16489 df-base 16491 df-sets 16492 df-plusg 16580 df-mulr 16581 df-0g 16717 df-mgp 19242 df-ur 19254 df-oppr 19375 df-dvdsr 19393 df-unit 19394 |
This theorem is referenced by: opprirred 19454 irredlmul 19460 opprdrng 19528 ply1divalg2 24734 |
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