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Theorem rloc1r 33353
Description: The multiplicative identity of a ring localization. (Contributed by Thierry Arnoux, 4-May-2025.)
Hypotheses
Ref Expression
rloc0g.1 0 = (0g𝑅)
rloc0g.2 1 = (1r𝑅)
rloc0g.3 𝐿 = (𝑅 RLocal 𝑆)
rloc0g.4 = (𝑅 ~RL 𝑆)
rloc0g.5 (𝜑𝑅 ∈ CRing)
rloc0g.6 (𝜑𝑆 ∈ (SubMnd‘(mulGrp‘𝑅)))
rloc1r.i 𝐼 = [⟨ 1 , 1 ⟩]
Assertion
Ref Expression
rloc1r (𝜑𝐼 = (1r𝐿))

Proof of Theorem rloc1r
Dummy variables 𝑎 𝑏 𝑥 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 rloc1r.i . 2 𝐼 = [⟨ 1 , 1 ⟩]
2 eqid 2739 . . . . 5 (Base‘𝑅) = (Base‘𝑅)
3 eqid 2739 . . . . 5 (.r𝑅) = (.r𝑅)
4 eqid 2739 . . . . 5 (+g𝑅) = (+g𝑅)
5 rloc0g.3 . . . . 5 𝐿 = (𝑅 RLocal 𝑆)
6 rloc0g.4 . . . . 5 = (𝑅 ~RL 𝑆)
7 rloc0g.5 . . . . 5 (𝜑𝑅 ∈ CRing)
8 rloc0g.6 . . . . 5 (𝜑𝑆 ∈ (SubMnd‘(mulGrp‘𝑅)))
92, 3, 4, 5, 6, 7, 8rloccring 33351 . . . 4 (𝜑𝐿 ∈ CRing)
109crngringd 20218 . . 3 (𝜑𝐿 ∈ Ring)
11 eqid 2739 . . . . . . . . . 10 (mulGrp‘𝑅) = (mulGrp‘𝑅)
1211, 2mgpbas 20117 . . . . . . . . 9 (Base‘𝑅) = (Base‘(mulGrp‘𝑅))
1312submss 18768 . . . . . . . 8 (𝑆 ∈ (SubMnd‘(mulGrp‘𝑅)) → 𝑆 ⊆ (Base‘𝑅))
148, 13syl 17 . . . . . . 7 (𝜑𝑆 ⊆ (Base‘𝑅))
15 rloc0g.2 . . . . . . . . . 10 1 = (1r𝑅)
1611, 15ringidval 20155 . . . . . . . . 9 1 = (0g‘(mulGrp‘𝑅))
1716subm0cl 18770 . . . . . . . 8 (𝑆 ∈ (SubMnd‘(mulGrp‘𝑅)) → 1𝑆)
188, 17syl 17 . . . . . . 7 (𝜑1𝑆)
1914, 18sseldd 3916 . . . . . 6 (𝜑1 ∈ (Base‘𝑅))
2019, 18opelxpd 5657 . . . . 5 (𝜑 → ⟨ 1 , 1 ⟩ ∈ ((Base‘𝑅) × 𝑆))
216ovexi 7390 . . . . . 6 ∈ V
2221ecelqsi 8706 . . . . 5 (⟨ 1 , 1 ⟩ ∈ ((Base‘𝑅) × 𝑆) → [⟨ 1 , 1 ⟩] ∈ (((Base‘𝑅) × 𝑆) / ))
2320, 22syl 17 . . . 4 (𝜑 → [⟨ 1 , 1 ⟩] ∈ (((Base‘𝑅) × 𝑆) / ))
24 rloc0g.1 . . . . 5 0 = (0g𝑅)
25 eqid 2739 . . . . 5 (-g𝑅) = (-g𝑅)
26 eqid 2739 . . . . 5 ((Base‘𝑅) × 𝑆) = ((Base‘𝑅) × 𝑆)
272, 24, 3, 25, 26, 5, 6, 7, 14rlocbas 33348 . . . 4 (𝜑 → (((Base‘𝑅) × 𝑆) / ) = (Base‘𝐿))
2823, 27eleqtrd 2841 . . 3 (𝜑 → [⟨ 1 , 1 ⟩] ∈ (Base‘𝐿))
297ad4antr 738 . . . . . . . . 9 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → 𝑅 ∈ CRing)
308ad4antr 738 . . . . . . . . 9 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → 𝑆 ∈ (SubMnd‘(mulGrp‘𝑅)))
3119ad4antr 738 . . . . . . . . 9 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → 1 ∈ (Base‘𝑅))
32 simpllr 781 . . . . . . . . 9 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → 𝑎 ∈ (Base‘𝑅))
3330, 17syl 17 . . . . . . . . 9 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → 1𝑆)
34 simplr 774 . . . . . . . . 9 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → 𝑏𝑆)
35 eqid 2739 . . . . . . . . 9 (.r𝐿) = (.r𝐿)
362, 3, 4, 5, 6, 29, 30, 31, 32, 33, 34, 35rlocmulval 33350 . . . . . . . 8 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ([⟨ 1 , 1 ⟩] (.r𝐿)[⟨𝑎, 𝑏⟩] ) = [⟨( 1 (.r𝑅)𝑎), ( 1 (.r𝑅)𝑏)⟩] )
3729crngringd 20218 . . . . . . . . . . 11 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → 𝑅 ∈ Ring)
382, 3, 15, 37, 32ringlidmd 20244 . . . . . . . . . 10 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ( 1 (.r𝑅)𝑎) = 𝑎)
3930, 13syl 17 . . . . . . . . . . . 12 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → 𝑆 ⊆ (Base‘𝑅))
4039, 34sseldd 3916 . . . . . . . . . . 11 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → 𝑏 ∈ (Base‘𝑅))
412, 3, 15, 37, 40ringlidmd 20244 . . . . . . . . . 10 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ( 1 (.r𝑅)𝑏) = 𝑏)
4238, 41opeq12d 4812 . . . . . . . . 9 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ⟨( 1 (.r𝑅)𝑎), ( 1 (.r𝑅)𝑏)⟩ = ⟨𝑎, 𝑏⟩)
4342eceq1d 8674 . . . . . . . 8 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → [⟨( 1 (.r𝑅)𝑎), ( 1 (.r𝑅)𝑏)⟩] = [⟨𝑎, 𝑏⟩] )
4436, 43eqtrd 2774 . . . . . . 7 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ([⟨ 1 , 1 ⟩] (.r𝐿)[⟨𝑎, 𝑏⟩] ) = [⟨𝑎, 𝑏⟩] )
45 simpr 485 . . . . . . . 8 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → 𝑥 = [⟨𝑎, 𝑏⟩] )
4645oveq2d 7372 . . . . . . 7 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ([⟨ 1 , 1 ⟩] (.r𝐿)𝑥) = ([⟨ 1 , 1 ⟩] (.r𝐿)[⟨𝑎, 𝑏⟩] ))
4744, 46, 453eqtr4d 2784 . . . . . 6 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ([⟨ 1 , 1 ⟩] (.r𝐿)𝑥) = 𝑥)
4827eqcomd 2745 . . . . . . . . 9 (𝜑 → (Base‘𝐿) = (((Base‘𝑅) × 𝑆) / ))
4948eleq2d 2825 . . . . . . . 8 (𝜑 → (𝑥 ∈ (Base‘𝐿) ↔ 𝑥 ∈ (((Base‘𝑅) × 𝑆) / )))
5049biimpa 477 . . . . . . 7 ((𝜑𝑥 ∈ (Base‘𝐿)) → 𝑥 ∈ (((Base‘𝑅) × 𝑆) / ))
5150elrlocbasi 33347 . . . . . 6 ((𝜑𝑥 ∈ (Base‘𝐿)) → ∃𝑎 ∈ (Base‘𝑅)∃𝑏𝑆 𝑥 = [⟨𝑎, 𝑏⟩] )
5247, 51r19.29vva 3199 . . . . 5 ((𝜑𝑥 ∈ (Base‘𝐿)) → ([⟨ 1 , 1 ⟩] (.r𝐿)𝑥) = 𝑥)
532, 3, 4, 5, 6, 29, 30, 32, 31, 34, 33, 35rlocmulval 33350 . . . . . . . 8 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ([⟨𝑎, 𝑏⟩] (.r𝐿)[⟨ 1 , 1 ⟩] ) = [⟨(𝑎(.r𝑅) 1 ), (𝑏(.r𝑅) 1 )⟩] )
542, 3, 15, 37, 32ringridmd 20245 . . . . . . . . . 10 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → (𝑎(.r𝑅) 1 ) = 𝑎)
552, 3, 15, 37, 40ringridmd 20245 . . . . . . . . . 10 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → (𝑏(.r𝑅) 1 ) = 𝑏)
5654, 55opeq12d 4812 . . . . . . . . 9 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ⟨(𝑎(.r𝑅) 1 ), (𝑏(.r𝑅) 1 )⟩ = ⟨𝑎, 𝑏⟩)
5756eceq1d 8674 . . . . . . . 8 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → [⟨(𝑎(.r𝑅) 1 ), (𝑏(.r𝑅) 1 )⟩] = [⟨𝑎, 𝑏⟩] )
5853, 57eqtrd 2774 . . . . . . 7 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ([⟨𝑎, 𝑏⟩] (.r𝐿)[⟨ 1 , 1 ⟩] ) = [⟨𝑎, 𝑏⟩] )
5945oveq1d 7371 . . . . . . 7 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → (𝑥(.r𝐿)[⟨ 1 , 1 ⟩] ) = ([⟨𝑎, 𝑏⟩] (.r𝐿)[⟨ 1 , 1 ⟩] ))
6058, 59, 453eqtr4d 2784 . . . . . 6 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → (𝑥(.r𝐿)[⟨ 1 , 1 ⟩] ) = 𝑥)
6160, 51r19.29vva 3199 . . . . 5 ((𝜑𝑥 ∈ (Base‘𝐿)) → (𝑥(.r𝐿)[⟨ 1 , 1 ⟩] ) = 𝑥)
6252, 61jca 516 . . . 4 ((𝜑𝑥 ∈ (Base‘𝐿)) → (([⟨ 1 , 1 ⟩] (.r𝐿)𝑥) = 𝑥 ∧ (𝑥(.r𝐿)[⟨ 1 , 1 ⟩] ) = 𝑥))
6362ralrimiva 3131 . . 3 (𝜑 → ∀𝑥 ∈ (Base‘𝐿)(([⟨ 1 , 1 ⟩] (.r𝐿)𝑥) = 𝑥 ∧ (𝑥(.r𝐿)[⟨ 1 , 1 ⟩] ) = 𝑥))
64 eqid 2739 . . . . 5 (Base‘𝐿) = (Base‘𝐿)
65 eqid 2739 . . . . 5 (1r𝐿) = (1r𝐿)
6664, 35, 65isringid 20243 . . . 4 (𝐿 ∈ Ring → (([⟨ 1 , 1 ⟩] ∈ (Base‘𝐿) ∧ ∀𝑥 ∈ (Base‘𝐿)(([⟨ 1 , 1 ⟩] (.r𝐿)𝑥) = 𝑥 ∧ (𝑥(.r𝐿)[⟨ 1 , 1 ⟩] ) = 𝑥)) ↔ (1r𝐿) = [⟨ 1 , 1 ⟩] ))
6766biimpa 477 . . 3 ((𝐿 ∈ Ring ∧ ([⟨ 1 , 1 ⟩] ∈ (Base‘𝐿) ∧ ∀𝑥 ∈ (Base‘𝐿)(([⟨ 1 , 1 ⟩] (.r𝐿)𝑥) = 𝑥 ∧ (𝑥(.r𝐿)[⟨ 1 , 1 ⟩] ) = 𝑥))) → (1r𝐿) = [⟨ 1 , 1 ⟩] )
6810, 28, 63, 67syl12anc 842 . 2 (𝜑 → (1r𝐿) = [⟨ 1 , 1 ⟩] )
691, 68eqtr4id 2793 1 (𝜑𝐼 = (1r𝐿))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 396   = wceq 1547  wcel 2119  wral 3053  wss 3883  cop 4561   × cxp 5616  cfv 6485  (class class class)co 7356  [cec 8631   / cqs 8632  Basecbs 17170  +gcplusg 17211  .rcmulr 17212  0gc0g 17393  SubMndcsubmnd 18741  -gcsg 18902  mulGrpcmgp 20112  1rcur 20153  Ringcrg 20205  CRingccrg 20206   ~RL cerl 33334   RLocal crloc 33335
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1802  ax-4 1816  ax-5 1917  ax-6 1974  ax-7 2015  ax-8 2121  ax-9 2129  ax-10 2152  ax-11 2168  ax-12 2189  ax-ext 2711  ax-rep 5199  ax-sep 5218  ax-nul 5228  ax-pow 5294  ax-pr 5362  ax-un 7678  ax-cnex 11085  ax-resscn 11086  ax-1cn 11087  ax-icn 11088  ax-addcl 11089  ax-addrcl 11090  ax-mulcl 11091  ax-mulrcl 11092  ax-mulcom 11093  ax-addass 11094  ax-mulass 11095  ax-distr 11096  ax-i2m1 11097  ax-1ne0 11098  ax-1rid 11099  ax-rnegex 11100  ax-rrecex 11101  ax-cnre 11102  ax-pre-lttri 11103  ax-pre-lttrn 11104  ax-pre-ltadd 11105  ax-pre-mulgt0 11106
This theorem depends on definitions:  df-bi 208  df-an 397  df-or 854  df-3or 1093  df-3an 1094  df-tru 1550  df-fal 1560  df-ex 1787  df-nf 1791  df-sb 2074  df-mo 2543  df-eu 2573  df-clab 2718  df-cleq 2731  df-clel 2814  df-nfc 2888  df-ne 2935  df-nel 3039  df-ral 3054  df-rex 3064  df-rmo 3344  df-reu 3345  df-rab 3392  df-v 3433  df-sbc 3724  df-csb 3832  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-pss 3903  df-nul 4262  df-if 4455  df-pw 4531  df-sn 4556  df-pr 4558  df-tp 4560  df-op 4562  df-uni 4839  df-iun 4923  df-br 5073  df-opab 5135  df-mpt 5154  df-tr 5180  df-id 5513  df-eprel 5518  df-po 5526  df-so 5527  df-fr 5571  df-we 5573  df-xp 5624  df-rel 5625  df-cnv 5626  df-co 5627  df-dm 5628  df-rn 5629  df-res 5630  df-ima 5631  df-pred 6252  df-ord 6313  df-on 6314  df-lim 6315  df-suc 6316  df-iota 6441  df-fun 6487  df-fn 6488  df-f 6489  df-f1 6490  df-fo 6491  df-f1o 6492  df-fv 6493  df-riota 7313  df-ov 7359  df-oprab 7360  df-mpo 7361  df-om 7807  df-1st 7931  df-2nd 7932  df-frecs 8221  df-wrecs 8252  df-recs 8301  df-rdg 8339  df-1o 8395  df-er 8633  df-ec 8635  df-qs 8639  df-en 8884  df-dom 8885  df-sdom 8886  df-fin 8887  df-sup 9345  df-inf 9346  df-pnf 11172  df-mnf 11173  df-xr 11174  df-ltxr 11175  df-le 11176  df-sub 11370  df-neg 11371  df-nn 12166  df-2 12235  df-3 12236  df-4 12237  df-5 12238  df-6 12239  df-7 12240  df-8 12241  df-9 12242  df-n0 12429  df-z 12516  df-dec 12636  df-uz 12780  df-fz 13453  df-struct 17108  df-sets 17125  df-slot 17143  df-ndx 17155  df-base 17171  df-ress 17192  df-plusg 17224  df-mulr 17225  df-sca 17227  df-vsca 17228  df-ip 17229  df-tset 17230  df-ple 17231  df-ds 17233  df-0g 17395  df-imas 17463  df-qus 17464  df-mgm 18599  df-sgrp 18678  df-mnd 18694  df-submnd 18743  df-grp 18903  df-minusg 18904  df-sbg 18905  df-cmn 19748  df-abl 19749  df-mgp 20113  df-rng 20125  df-ur 20154  df-ring 20207  df-cring 20208  df-erl 33336  df-rloc 33337
This theorem is referenced by:  rlocf1  33354  fracfld  33392  zringfrac  33637
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