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Mirrors > Home > MPE Home > Th. List > qusring2 | Structured version Visualization version GIF version |
Description: The quotient structure of a ring is a ring. (Contributed by Mario Carneiro, 14-Jun-2015.) |
Ref | Expression |
---|---|
qusring2.u | ⊢ (𝜑 → 𝑈 = (𝑅 /s ∼ )) |
qusring2.v | ⊢ (𝜑 → 𝑉 = (Base‘𝑅)) |
qusring2.p | ⊢ + = (+g‘𝑅) |
qusring2.t | ⊢ · = (.r‘𝑅) |
qusring2.o | ⊢ 1 = (1r‘𝑅) |
qusring2.r | ⊢ (𝜑 → ∼ Er 𝑉) |
qusring2.e1 | ⊢ (𝜑 → ((𝑎 ∼ 𝑝 ∧ 𝑏 ∼ 𝑞) → (𝑎 + 𝑏) ∼ (𝑝 + 𝑞))) |
qusring2.e2 | ⊢ (𝜑 → ((𝑎 ∼ 𝑝 ∧ 𝑏 ∼ 𝑞) → (𝑎 · 𝑏) ∼ (𝑝 · 𝑞))) |
qusring2.x | ⊢ (𝜑 → 𝑅 ∈ Ring) |
Ref | Expression |
---|---|
qusring2 | ⊢ (𝜑 → (𝑈 ∈ Ring ∧ [ 1 ] ∼ = (1r‘𝑈))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | qusring2.u | . . . 4 ⊢ (𝜑 → 𝑈 = (𝑅 /s ∼ )) | |
2 | qusring2.v | . . . 4 ⊢ (𝜑 → 𝑉 = (Base‘𝑅)) | |
3 | eqid 2737 | . . . 4 ⊢ (𝑢 ∈ 𝑉 ↦ [𝑢] ∼ ) = (𝑢 ∈ 𝑉 ↦ [𝑢] ∼ ) | |
4 | qusring2.r | . . . . 5 ⊢ (𝜑 → ∼ Er 𝑉) | |
5 | fvex 6730 | . . . . . 6 ⊢ (Base‘𝑅) ∈ V | |
6 | 2, 5 | eqeltrdi 2846 | . . . . 5 ⊢ (𝜑 → 𝑉 ∈ V) |
7 | erex 8415 | . . . . 5 ⊢ ( ∼ Er 𝑉 → (𝑉 ∈ V → ∼ ∈ V)) | |
8 | 4, 6, 7 | sylc 65 | . . . 4 ⊢ (𝜑 → ∼ ∈ V) |
9 | qusring2.x | . . . 4 ⊢ (𝜑 → 𝑅 ∈ Ring) | |
10 | 1, 2, 3, 8, 9 | qusval 17047 | . . 3 ⊢ (𝜑 → 𝑈 = ((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ ) “s 𝑅)) |
11 | qusring2.p | . . 3 ⊢ + = (+g‘𝑅) | |
12 | qusring2.t | . . 3 ⊢ · = (.r‘𝑅) | |
13 | qusring2.o | . . 3 ⊢ 1 = (1r‘𝑅) | |
14 | 1, 2, 3, 8, 9 | quslem 17048 | . . 3 ⊢ (𝜑 → (𝑢 ∈ 𝑉 ↦ [𝑢] ∼ ):𝑉–onto→(𝑉 / ∼ )) |
15 | 9 | adantr 484 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑉 ∧ 𝑦 ∈ 𝑉)) → 𝑅 ∈ Ring) |
16 | simprl 771 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑉 ∧ 𝑦 ∈ 𝑉)) → 𝑥 ∈ 𝑉) | |
17 | 2 | adantr 484 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑉 ∧ 𝑦 ∈ 𝑉)) → 𝑉 = (Base‘𝑅)) |
18 | 16, 17 | eleqtrd 2840 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑉 ∧ 𝑦 ∈ 𝑉)) → 𝑥 ∈ (Base‘𝑅)) |
19 | simprr 773 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑉 ∧ 𝑦 ∈ 𝑉)) → 𝑦 ∈ 𝑉) | |
20 | 19, 17 | eleqtrd 2840 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑉 ∧ 𝑦 ∈ 𝑉)) → 𝑦 ∈ (Base‘𝑅)) |
21 | eqid 2737 | . . . . . . 7 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
22 | 21, 11 | ringacl 19596 | . . . . . 6 ⊢ ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑥 + 𝑦) ∈ (Base‘𝑅)) |
23 | 15, 18, 20, 22 | syl3anc 1373 | . . . . 5 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑉 ∧ 𝑦 ∈ 𝑉)) → (𝑥 + 𝑦) ∈ (Base‘𝑅)) |
24 | 23, 17 | eleqtrrd 2841 | . . . 4 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑉 ∧ 𝑦 ∈ 𝑉)) → (𝑥 + 𝑦) ∈ 𝑉) |
25 | qusring2.e1 | . . . 4 ⊢ (𝜑 → ((𝑎 ∼ 𝑝 ∧ 𝑏 ∼ 𝑞) → (𝑎 + 𝑏) ∼ (𝑝 + 𝑞))) | |
26 | 4, 6, 3, 24, 25 | ercpbl 17054 | . . 3 ⊢ ((𝜑 ∧ (𝑎 ∈ 𝑉 ∧ 𝑏 ∈ 𝑉) ∧ (𝑝 ∈ 𝑉 ∧ 𝑞 ∈ 𝑉)) → ((((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ )‘𝑎) = ((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ )‘𝑝) ∧ ((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ )‘𝑏) = ((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ )‘𝑞)) → ((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ )‘(𝑎 + 𝑏)) = ((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ )‘(𝑝 + 𝑞)))) |
27 | 21, 12 | ringcl 19579 | . . . . . 6 ⊢ ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑥 · 𝑦) ∈ (Base‘𝑅)) |
28 | 15, 18, 20, 27 | syl3anc 1373 | . . . . 5 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑉 ∧ 𝑦 ∈ 𝑉)) → (𝑥 · 𝑦) ∈ (Base‘𝑅)) |
29 | 28, 17 | eleqtrrd 2841 | . . . 4 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑉 ∧ 𝑦 ∈ 𝑉)) → (𝑥 · 𝑦) ∈ 𝑉) |
30 | qusring2.e2 | . . . 4 ⊢ (𝜑 → ((𝑎 ∼ 𝑝 ∧ 𝑏 ∼ 𝑞) → (𝑎 · 𝑏) ∼ (𝑝 · 𝑞))) | |
31 | 4, 6, 3, 29, 30 | ercpbl 17054 | . . 3 ⊢ ((𝜑 ∧ (𝑎 ∈ 𝑉 ∧ 𝑏 ∈ 𝑉) ∧ (𝑝 ∈ 𝑉 ∧ 𝑞 ∈ 𝑉)) → ((((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ )‘𝑎) = ((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ )‘𝑝) ∧ ((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ )‘𝑏) = ((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ )‘𝑞)) → ((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ )‘(𝑎 · 𝑏)) = ((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ )‘(𝑝 · 𝑞)))) |
32 | 10, 2, 11, 12, 13, 14, 26, 31, 9 | imasring 19637 | . 2 ⊢ (𝜑 → (𝑈 ∈ Ring ∧ ((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ )‘ 1 ) = (1r‘𝑈))) |
33 | 4, 6, 3 | divsfval 17052 | . . . . 5 ⊢ (𝜑 → ((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ )‘ 1 ) = [ 1 ] ∼ ) |
34 | 33 | eqcomd 2743 | . . . 4 ⊢ (𝜑 → [ 1 ] ∼ = ((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ )‘ 1 )) |
35 | 34 | eqeq1d 2739 | . . 3 ⊢ (𝜑 → ([ 1 ] ∼ = (1r‘𝑈) ↔ ((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ )‘ 1 ) = (1r‘𝑈))) |
36 | 35 | anbi2d 632 | . 2 ⊢ (𝜑 → ((𝑈 ∈ Ring ∧ [ 1 ] ∼ = (1r‘𝑈)) ↔ (𝑈 ∈ Ring ∧ ((𝑢 ∈ 𝑉 ↦ [𝑢] ∼ )‘ 1 ) = (1r‘𝑈)))) |
37 | 32, 36 | mpbird 260 | 1 ⊢ (𝜑 → (𝑈 ∈ Ring ∧ [ 1 ] ∼ = (1r‘𝑈))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 = wceq 1543 ∈ wcel 2110 Vcvv 3408 class class class wbr 5053 ↦ cmpt 5135 ‘cfv 6380 (class class class)co 7213 Er wer 8388 [cec 8389 / cqs 8390 Basecbs 16760 +gcplusg 16802 .rcmulr 16803 /s cqus 17010 1rcur 19516 Ringcrg 19562 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2016 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2708 ax-rep 5179 ax-sep 5192 ax-nul 5199 ax-pow 5258 ax-pr 5322 ax-un 7523 ax-cnex 10785 ax-resscn 10786 ax-1cn 10787 ax-icn 10788 ax-addcl 10789 ax-addrcl 10790 ax-mulcl 10791 ax-mulrcl 10792 ax-mulcom 10793 ax-addass 10794 ax-mulass 10795 ax-distr 10796 ax-i2m1 10797 ax-1ne0 10798 ax-1rid 10799 ax-rnegex 10800 ax-rrecex 10801 ax-cnre 10802 ax-pre-lttri 10803 ax-pre-lttrn 10804 ax-pre-ltadd 10805 ax-pre-mulgt0 10806 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2071 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2816 df-nfc 2886 df-ne 2941 df-nel 3047 df-ral 3066 df-rex 3067 df-reu 3068 df-rmo 3069 df-rab 3070 df-v 3410 df-sbc 3695 df-csb 3812 df-dif 3869 df-un 3871 df-in 3873 df-ss 3883 df-pss 3885 df-nul 4238 df-if 4440 df-pw 4515 df-sn 4542 df-pr 4544 df-tp 4546 df-op 4548 df-uni 4820 df-iun 4906 df-br 5054 df-opab 5116 df-mpt 5136 df-tr 5162 df-id 5455 df-eprel 5460 df-po 5468 df-so 5469 df-fr 5509 df-we 5511 df-xp 5557 df-rel 5558 df-cnv 5559 df-co 5560 df-dm 5561 df-rn 5562 df-res 5563 df-ima 5564 df-pred 6160 df-ord 6216 df-on 6217 df-lim 6218 df-suc 6219 df-iota 6338 df-fun 6382 df-fn 6383 df-f 6384 df-f1 6385 df-fo 6386 df-f1o 6387 df-fv 6388 df-riota 7170 df-ov 7216 df-oprab 7217 df-mpo 7218 df-om 7645 df-1st 7761 df-2nd 7762 df-wrecs 8047 df-recs 8108 df-rdg 8146 df-1o 8202 df-er 8391 df-ec 8393 df-qs 8397 df-en 8627 df-dom 8628 df-sdom 8629 df-fin 8630 df-sup 9058 df-inf 9059 df-pnf 10869 df-mnf 10870 df-xr 10871 df-ltxr 10872 df-le 10873 df-sub 11064 df-neg 11065 df-nn 11831 df-2 11893 df-3 11894 df-4 11895 df-5 11896 df-6 11897 df-7 11898 df-8 11899 df-9 11900 df-n0 12091 df-z 12177 df-dec 12294 df-uz 12439 df-fz 13096 df-struct 16700 df-sets 16717 df-slot 16735 df-ndx 16745 df-base 16761 df-plusg 16815 df-mulr 16816 df-sca 16818 df-vsca 16819 df-ip 16820 df-tset 16821 df-ple 16822 df-ds 16824 df-0g 16946 df-imas 17013 df-qus 17014 df-mgm 18114 df-sgrp 18163 df-mnd 18174 df-grp 18368 df-minusg 18369 df-mgp 19505 df-ur 19517 df-ring 19564 |
This theorem is referenced by: qus1 20273 |
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