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Mirrors > Home > MPE Home > Th. List > subrgdv | Structured version Visualization version GIF version |
Description: A subring always has the same division function, for elements that are invertible. (Contributed by Mario Carneiro, 4-Dec-2014.) |
Ref | Expression |
---|---|
subrgdv.1 | ⊢ 𝑆 = (𝑅 ↾s 𝐴) |
subrgdv.2 | ⊢ / = (/r‘𝑅) |
subrgdv.3 | ⊢ 𝑈 = (Unit‘𝑆) |
subrgdv.4 | ⊢ 𝐸 = (/r‘𝑆) |
Ref | Expression |
---|---|
subrgdv | ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝑈) → (𝑋 / 𝑌) = (𝑋𝐸𝑌)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | subrgdv.1 | . . . . . 6 ⊢ 𝑆 = (𝑅 ↾s 𝐴) | |
2 | eqid 2738 | . . . . . 6 ⊢ (invr‘𝑅) = (invr‘𝑅) | |
3 | subrgdv.3 | . . . . . 6 ⊢ 𝑈 = (Unit‘𝑆) | |
4 | eqid 2738 | . . . . . 6 ⊢ (invr‘𝑆) = (invr‘𝑆) | |
5 | 1, 2, 3, 4 | subrginv 20040 | . . . . 5 ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑌 ∈ 𝑈) → ((invr‘𝑅)‘𝑌) = ((invr‘𝑆)‘𝑌)) |
6 | 5 | 3adant2 1130 | . . . 4 ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝑈) → ((invr‘𝑅)‘𝑌) = ((invr‘𝑆)‘𝑌)) |
7 | 6 | oveq2d 7291 | . . 3 ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝑈) → (𝑋(.r‘𝑅)((invr‘𝑅)‘𝑌)) = (𝑋(.r‘𝑅)((invr‘𝑆)‘𝑌))) |
8 | eqid 2738 | . . . . . 6 ⊢ (.r‘𝑅) = (.r‘𝑅) | |
9 | 1, 8 | ressmulr 17017 | . . . . 5 ⊢ (𝐴 ∈ (SubRing‘𝑅) → (.r‘𝑅) = (.r‘𝑆)) |
10 | 9 | 3ad2ant1 1132 | . . . 4 ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝑈) → (.r‘𝑅) = (.r‘𝑆)) |
11 | 10 | oveqd 7292 | . . 3 ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝑈) → (𝑋(.r‘𝑅)((invr‘𝑆)‘𝑌)) = (𝑋(.r‘𝑆)((invr‘𝑆)‘𝑌))) |
12 | 7, 11 | eqtrd 2778 | . 2 ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝑈) → (𝑋(.r‘𝑅)((invr‘𝑅)‘𝑌)) = (𝑋(.r‘𝑆)((invr‘𝑆)‘𝑌))) |
13 | eqid 2738 | . . . . . 6 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
14 | 13 | subrgss 20025 | . . . . 5 ⊢ (𝐴 ∈ (SubRing‘𝑅) → 𝐴 ⊆ (Base‘𝑅)) |
15 | 14 | 3ad2ant1 1132 | . . . 4 ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝑈) → 𝐴 ⊆ (Base‘𝑅)) |
16 | simp2 1136 | . . . 4 ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝑈) → 𝑋 ∈ 𝐴) | |
17 | 15, 16 | sseldd 3922 | . . 3 ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝑈) → 𝑋 ∈ (Base‘𝑅)) |
18 | eqid 2738 | . . . . . 6 ⊢ (Unit‘𝑅) = (Unit‘𝑅) | |
19 | 1, 18, 3 | subrguss 20039 | . . . . 5 ⊢ (𝐴 ∈ (SubRing‘𝑅) → 𝑈 ⊆ (Unit‘𝑅)) |
20 | 19 | 3ad2ant1 1132 | . . . 4 ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝑈) → 𝑈 ⊆ (Unit‘𝑅)) |
21 | simp3 1137 | . . . 4 ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝑈) → 𝑌 ∈ 𝑈) | |
22 | 20, 21 | sseldd 3922 | . . 3 ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝑈) → 𝑌 ∈ (Unit‘𝑅)) |
23 | subrgdv.2 | . . . 4 ⊢ / = (/r‘𝑅) | |
24 | 13, 8, 18, 2, 23 | dvrval 19927 | . . 3 ⊢ ((𝑋 ∈ (Base‘𝑅) ∧ 𝑌 ∈ (Unit‘𝑅)) → (𝑋 / 𝑌) = (𝑋(.r‘𝑅)((invr‘𝑅)‘𝑌))) |
25 | 17, 22, 24 | syl2anc 584 | . 2 ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝑈) → (𝑋 / 𝑌) = (𝑋(.r‘𝑅)((invr‘𝑅)‘𝑌))) |
26 | 1 | subrgbas 20033 | . . . . 5 ⊢ (𝐴 ∈ (SubRing‘𝑅) → 𝐴 = (Base‘𝑆)) |
27 | 26 | 3ad2ant1 1132 | . . . 4 ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝑈) → 𝐴 = (Base‘𝑆)) |
28 | 16, 27 | eleqtrd 2841 | . . 3 ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝑈) → 𝑋 ∈ (Base‘𝑆)) |
29 | eqid 2738 | . . . 4 ⊢ (Base‘𝑆) = (Base‘𝑆) | |
30 | eqid 2738 | . . . 4 ⊢ (.r‘𝑆) = (.r‘𝑆) | |
31 | subrgdv.4 | . . . 4 ⊢ 𝐸 = (/r‘𝑆) | |
32 | 29, 30, 3, 4, 31 | dvrval 19927 | . . 3 ⊢ ((𝑋 ∈ (Base‘𝑆) ∧ 𝑌 ∈ 𝑈) → (𝑋𝐸𝑌) = (𝑋(.r‘𝑆)((invr‘𝑆)‘𝑌))) |
33 | 28, 21, 32 | syl2anc 584 | . 2 ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝑈) → (𝑋𝐸𝑌) = (𝑋(.r‘𝑆)((invr‘𝑆)‘𝑌))) |
34 | 12, 25, 33 | 3eqtr4d 2788 | 1 ⊢ ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝑈) → (𝑋 / 𝑌) = (𝑋𝐸𝑌)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ w3a 1086 = wceq 1539 ∈ wcel 2106 ⊆ wss 3887 ‘cfv 6433 (class class class)co 7275 Basecbs 16912 ↾s cress 16941 .rcmulr 16963 Unitcui 19881 invrcinvr 19913 /rcdvr 19924 SubRingcsubrg 20020 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-rmo 3071 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-1st 7831 df-2nd 7832 df-tpos 8042 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-nn 11974 df-2 12036 df-3 12037 df-sets 16865 df-slot 16883 df-ndx 16895 df-base 16913 df-ress 16942 df-plusg 16975 df-mulr 16976 df-0g 17152 df-mgm 18326 df-sgrp 18375 df-mnd 18386 df-grp 18580 df-minusg 18581 df-subg 18752 df-mgp 19721 df-ur 19738 df-ring 19785 df-oppr 19862 df-dvdsr 19883 df-unit 19884 df-invr 19914 df-dvr 19925 df-subrg 20022 |
This theorem is referenced by: qsssubdrg 20657 redvr 20822 cvsdiv 24295 qrngdiv 26772 |
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