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Theorem idlinsubrg 33409
Description: The intersection between an ideal and a subring is an ideal of the subring. (Contributed by Thierry Arnoux, 6-Jul-2024.)
Hypotheses
Ref Expression
idlinsubrg.s 𝑆 = (𝑅s 𝐴)
idlinsubrg.u 𝑈 = (LIdeal‘𝑅)
idlinsubrg.v 𝑉 = (LIdeal‘𝑆)
Assertion
Ref Expression
idlinsubrg ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) → (𝐼𝐴) ∈ 𝑉)

Proof of Theorem idlinsubrg
Dummy variables 𝑎 𝑏 𝑥 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 inss2 4204 . . . 4 (𝐼𝐴) ⊆ 𝐴
2 idlinsubrg.s . . . . 5 𝑆 = (𝑅s 𝐴)
32subrgbas 20497 . . . 4 (𝐴 ∈ (SubRing‘𝑅) → 𝐴 = (Base‘𝑆))
41, 3sseqtrid 3992 . . 3 (𝐴 ∈ (SubRing‘𝑅) → (𝐼𝐴) ⊆ (Base‘𝑆))
54adantr 480 . 2 ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) → (𝐼𝐴) ⊆ (Base‘𝑆))
6 subrgrcl 20492 . . . . 5 (𝐴 ∈ (SubRing‘𝑅) → 𝑅 ∈ Ring)
7 idlinsubrg.u . . . . . 6 𝑈 = (LIdeal‘𝑅)
8 eqid 2730 . . . . . 6 (0g𝑅) = (0g𝑅)
97, 8lidl0cl 21137 . . . . 5 ((𝑅 ∈ Ring ∧ 𝐼𝑈) → (0g𝑅) ∈ 𝐼)
106, 9sylan 580 . . . 4 ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) → (0g𝑅) ∈ 𝐼)
11 subrgsubg 20493 . . . . . 6 (𝐴 ∈ (SubRing‘𝑅) → 𝐴 ∈ (SubGrp‘𝑅))
12 subgsubm 19087 . . . . . 6 (𝐴 ∈ (SubGrp‘𝑅) → 𝐴 ∈ (SubMnd‘𝑅))
138subm0cl 18745 . . . . . 6 (𝐴 ∈ (SubMnd‘𝑅) → (0g𝑅) ∈ 𝐴)
1411, 12, 133syl 18 . . . . 5 (𝐴 ∈ (SubRing‘𝑅) → (0g𝑅) ∈ 𝐴)
1514adantr 480 . . . 4 ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) → (0g𝑅) ∈ 𝐴)
1610, 15elind 4166 . . 3 ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) → (0g𝑅) ∈ (𝐼𝐴))
1716ne0d 4308 . 2 ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) → (𝐼𝐴) ≠ ∅)
18 eqid 2730 . . . . . . . . 9 (+g𝑅) = (+g𝑅)
192, 18ressplusg 17261 . . . . . . . 8 (𝐴 ∈ (SubRing‘𝑅) → (+g𝑅) = (+g𝑆))
20 eqid 2730 . . . . . . . . . 10 (.r𝑅) = (.r𝑅)
212, 20ressmulr 17277 . . . . . . . . 9 (𝐴 ∈ (SubRing‘𝑅) → (.r𝑅) = (.r𝑆))
2221oveqd 7407 . . . . . . . 8 (𝐴 ∈ (SubRing‘𝑅) → (𝑥(.r𝑅)𝑎) = (𝑥(.r𝑆)𝑎))
23 eqidd 2731 . . . . . . . 8 (𝐴 ∈ (SubRing‘𝑅) → 𝑏 = 𝑏)
2419, 22, 23oveq123d 7411 . . . . . . 7 (𝐴 ∈ (SubRing‘𝑅) → ((𝑥(.r𝑅)𝑎)(+g𝑅)𝑏) = ((𝑥(.r𝑆)𝑎)(+g𝑆)𝑏))
2524ad4antr 732 . . . . . 6 (((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) ∧ 𝑏 ∈ (𝐼𝐴)) → ((𝑥(.r𝑅)𝑎)(+g𝑅)𝑏) = ((𝑥(.r𝑆)𝑎)(+g𝑆)𝑏))
266ad4antr 732 . . . . . . . 8 (((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) ∧ 𝑏 ∈ (𝐼𝐴)) → 𝑅 ∈ Ring)
27 simp-4r 783 . . . . . . . 8 (((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) ∧ 𝑏 ∈ (𝐼𝐴)) → 𝐼𝑈)
28 eqid 2730 . . . . . . . . . . . . . 14 (Base‘𝑅) = (Base‘𝑅)
2928subrgss 20488 . . . . . . . . . . . . 13 (𝐴 ∈ (SubRing‘𝑅) → 𝐴 ⊆ (Base‘𝑅))
303, 29eqsstrrd 3985 . . . . . . . . . . . 12 (𝐴 ∈ (SubRing‘𝑅) → (Base‘𝑆) ⊆ (Base‘𝑅))
3130adantr 480 . . . . . . . . . . 11 ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) → (Base‘𝑆) ⊆ (Base‘𝑅))
3231sselda 3949 . . . . . . . . . 10 (((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) → 𝑥 ∈ (Base‘𝑅))
3332ad2antrr 726 . . . . . . . . 9 (((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) ∧ 𝑏 ∈ (𝐼𝐴)) → 𝑥 ∈ (Base‘𝑅))
34 inss1 4203 . . . . . . . . . . . 12 (𝐼𝐴) ⊆ 𝐼
3534a1i 11 . . . . . . . . . . 11 (((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) → (𝐼𝐴) ⊆ 𝐼)
3635sselda 3949 . . . . . . . . . 10 ((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) → 𝑎𝐼)
3736adantr 480 . . . . . . . . 9 (((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) ∧ 𝑏 ∈ (𝐼𝐴)) → 𝑎𝐼)
387, 28, 20lidlmcl 21142 . . . . . . . . 9 (((𝑅 ∈ Ring ∧ 𝐼𝑈) ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑎𝐼)) → (𝑥(.r𝑅)𝑎) ∈ 𝐼)
3926, 27, 33, 37, 38syl22anc 838 . . . . . . . 8 (((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) ∧ 𝑏 ∈ (𝐼𝐴)) → (𝑥(.r𝑅)𝑎) ∈ 𝐼)
4034a1i 11 . . . . . . . . 9 ((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) → (𝐼𝐴) ⊆ 𝐼)
4140sselda 3949 . . . . . . . 8 (((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) ∧ 𝑏 ∈ (𝐼𝐴)) → 𝑏𝐼)
427, 18lidlacl 21138 . . . . . . . 8 (((𝑅 ∈ Ring ∧ 𝐼𝑈) ∧ ((𝑥(.r𝑅)𝑎) ∈ 𝐼𝑏𝐼)) → ((𝑥(.r𝑅)𝑎)(+g𝑅)𝑏) ∈ 𝐼)
4326, 27, 39, 41, 42syl22anc 838 . . . . . . 7 (((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) ∧ 𝑏 ∈ (𝐼𝐴)) → ((𝑥(.r𝑅)𝑎)(+g𝑅)𝑏) ∈ 𝐼)
44 simp-4l 782 . . . . . . . 8 (((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) ∧ 𝑏 ∈ (𝐼𝐴)) → 𝐴 ∈ (SubRing‘𝑅))
45 simpr 484 . . . . . . . . . . 11 (((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) → 𝑥 ∈ (Base‘𝑆))
463ad2antrr 726 . . . . . . . . . . 11 (((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) → 𝐴 = (Base‘𝑆))
4745, 46eleqtrrd 2832 . . . . . . . . . 10 (((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) → 𝑥𝐴)
4847ad2antrr 726 . . . . . . . . 9 (((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) ∧ 𝑏 ∈ (𝐼𝐴)) → 𝑥𝐴)
491a1i 11 . . . . . . . . . . 11 (((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) → (𝐼𝐴) ⊆ 𝐴)
5049sselda 3949 . . . . . . . . . 10 ((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) → 𝑎𝐴)
5150adantr 480 . . . . . . . . 9 (((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) ∧ 𝑏 ∈ (𝐼𝐴)) → 𝑎𝐴)
5220subrgmcl 20500 . . . . . . . . 9 ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝑥𝐴𝑎𝐴) → (𝑥(.r𝑅)𝑎) ∈ 𝐴)
5344, 48, 51, 52syl3anc 1373 . . . . . . . 8 (((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) ∧ 𝑏 ∈ (𝐼𝐴)) → (𝑥(.r𝑅)𝑎) ∈ 𝐴)
541a1i 11 . . . . . . . . 9 ((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) → (𝐼𝐴) ⊆ 𝐴)
5554sselda 3949 . . . . . . . 8 (((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) ∧ 𝑏 ∈ (𝐼𝐴)) → 𝑏𝐴)
5618subrgacl 20499 . . . . . . . 8 ((𝐴 ∈ (SubRing‘𝑅) ∧ (𝑥(.r𝑅)𝑎) ∈ 𝐴𝑏𝐴) → ((𝑥(.r𝑅)𝑎)(+g𝑅)𝑏) ∈ 𝐴)
5744, 53, 55, 56syl3anc 1373 . . . . . . 7 (((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) ∧ 𝑏 ∈ (𝐼𝐴)) → ((𝑥(.r𝑅)𝑎)(+g𝑅)𝑏) ∈ 𝐴)
5843, 57elind 4166 . . . . . 6 (((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) ∧ 𝑏 ∈ (𝐼𝐴)) → ((𝑥(.r𝑅)𝑎)(+g𝑅)𝑏) ∈ (𝐼𝐴))
5925, 58eqeltrrd 2830 . . . . 5 (((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ 𝑎 ∈ (𝐼𝐴)) ∧ 𝑏 ∈ (𝐼𝐴)) → ((𝑥(.r𝑆)𝑎)(+g𝑆)𝑏) ∈ (𝐼𝐴))
6059anasss 466 . . . 4 ((((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) ∧ (𝑎 ∈ (𝐼𝐴) ∧ 𝑏 ∈ (𝐼𝐴))) → ((𝑥(.r𝑆)𝑎)(+g𝑆)𝑏) ∈ (𝐼𝐴))
6160ralrimivva 3181 . . 3 (((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) ∧ 𝑥 ∈ (Base‘𝑆)) → ∀𝑎 ∈ (𝐼𝐴)∀𝑏 ∈ (𝐼𝐴)((𝑥(.r𝑆)𝑎)(+g𝑆)𝑏) ∈ (𝐼𝐴))
6261ralrimiva 3126 . 2 ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) → ∀𝑥 ∈ (Base‘𝑆)∀𝑎 ∈ (𝐼𝐴)∀𝑏 ∈ (𝐼𝐴)((𝑥(.r𝑆)𝑎)(+g𝑆)𝑏) ∈ (𝐼𝐴))
63 idlinsubrg.v . . 3 𝑉 = (LIdeal‘𝑆)
64 eqid 2730 . . 3 (Base‘𝑆) = (Base‘𝑆)
65 eqid 2730 . . 3 (+g𝑆) = (+g𝑆)
66 eqid 2730 . . 3 (.r𝑆) = (.r𝑆)
6763, 64, 65, 66islidl 21132 . 2 ((𝐼𝐴) ∈ 𝑉 ↔ ((𝐼𝐴) ⊆ (Base‘𝑆) ∧ (𝐼𝐴) ≠ ∅ ∧ ∀𝑥 ∈ (Base‘𝑆)∀𝑎 ∈ (𝐼𝐴)∀𝑏 ∈ (𝐼𝐴)((𝑥(.r𝑆)𝑎)(+g𝑆)𝑏) ∈ (𝐼𝐴)))
685, 17, 62, 67syl3anbrc 1344 1 ((𝐴 ∈ (SubRing‘𝑅) ∧ 𝐼𝑈) → (𝐼𝐴) ∈ 𝑉)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395   = wceq 1540  wcel 2109  wne 2926  wral 3045  cin 3916  wss 3917  c0 4299  cfv 6514  (class class class)co 7390  Basecbs 17186  s cress 17207  +gcplusg 17227  .rcmulr 17228  0gc0g 17409  SubMndcsubmnd 18716  SubGrpcsubg 19059  Ringcrg 20149  SubRingcsubrg 20485  LIdealclidl 21123
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-10 2142  ax-11 2158  ax-12 2178  ax-ext 2702  ax-rep 5237  ax-sep 5254  ax-nul 5264  ax-pow 5323  ax-pr 5390  ax-un 7714  ax-cnex 11131  ax-resscn 11132  ax-1cn 11133  ax-icn 11134  ax-addcl 11135  ax-addrcl 11136  ax-mulcl 11137  ax-mulrcl 11138  ax-mulcom 11139  ax-addass 11140  ax-mulass 11141  ax-distr 11142  ax-i2m1 11143  ax-1ne0 11144  ax-1rid 11145  ax-rnegex 11146  ax-rrecex 11147  ax-cnre 11148  ax-pre-lttri 11149  ax-pre-lttrn 11150  ax-pre-ltadd 11151  ax-pre-mulgt0 11152
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2066  df-mo 2534  df-eu 2563  df-clab 2709  df-cleq 2722  df-clel 2804  df-nfc 2879  df-ne 2927  df-nel 3031  df-ral 3046  df-rex 3055  df-rmo 3356  df-reu 3357  df-rab 3409  df-v 3452  df-sbc 3757  df-csb 3866  df-dif 3920  df-un 3922  df-in 3924  df-ss 3934  df-pss 3937  df-nul 4300  df-if 4492  df-pw 4568  df-sn 4593  df-pr 4595  df-op 4599  df-uni 4875  df-iun 4960  df-br 5111  df-opab 5173  df-mpt 5192  df-tr 5218  df-id 5536  df-eprel 5541  df-po 5549  df-so 5550  df-fr 5594  df-we 5596  df-xp 5647  df-rel 5648  df-cnv 5649  df-co 5650  df-dm 5651  df-rn 5652  df-res 5653  df-ima 5654  df-pred 6277  df-ord 6338  df-on 6339  df-lim 6340  df-suc 6341  df-iota 6467  df-fun 6516  df-fn 6517  df-f 6518  df-f1 6519  df-fo 6520  df-f1o 6521  df-fv 6522  df-riota 7347  df-ov 7393  df-oprab 7394  df-mpo 7395  df-om 7846  df-1st 7971  df-2nd 7972  df-frecs 8263  df-wrecs 8294  df-recs 8343  df-rdg 8381  df-er 8674  df-en 8922  df-dom 8923  df-sdom 8924  df-pnf 11217  df-mnf 11218  df-xr 11219  df-ltxr 11220  df-le 11221  df-sub 11414  df-neg 11415  df-nn 12194  df-2 12256  df-3 12257  df-4 12258  df-5 12259  df-6 12260  df-7 12261  df-8 12262  df-sets 17141  df-slot 17159  df-ndx 17171  df-base 17187  df-ress 17208  df-plusg 17240  df-mulr 17241  df-sca 17243  df-vsca 17244  df-ip 17245  df-0g 17411  df-mgm 18574  df-sgrp 18653  df-mnd 18669  df-submnd 18718  df-grp 18875  df-minusg 18876  df-sbg 18877  df-subg 19062  df-cmn 19719  df-abl 19720  df-mgp 20057  df-rng 20069  df-ur 20098  df-ring 20151  df-subrng 20462  df-subrg 20486  df-lmod 20775  df-lss 20845  df-sra 21087  df-rgmod 21088  df-lidl 21125
This theorem is referenced by: (None)
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