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Theorem rloc1r 33354
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 2736 . . . . 5 (Base‘𝑅) = (Base‘𝑅)
3 eqid 2736 . . . . 5 (.r𝑅) = (.r𝑅)
4 eqid 2736 . . . . 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 33352 . . . 4 (𝜑𝐿 ∈ CRing)
109crngringd 20181 . . 3 (𝜑𝐿 ∈ Ring)
11 eqid 2736 . . . . . . . . . 10 (mulGrp‘𝑅) = (mulGrp‘𝑅)
1211, 2mgpbas 20080 . . . . . . . . 9 (Base‘𝑅) = (Base‘(mulGrp‘𝑅))
1312submss 18734 . . . . . . . 8 (𝑆 ∈ (SubMnd‘(mulGrp‘𝑅)) → 𝑆 ⊆ (Base‘𝑅))
148, 13syl 17 . . . . . . 7 (𝜑𝑆 ⊆ (Base‘𝑅))
15 rloc0g.2 . . . . . . . . . 10 1 = (1r𝑅)
1611, 15ringidval 20118 . . . . . . . . 9 1 = (0g‘(mulGrp‘𝑅))
1716subm0cl 18736 . . . . . . . 8 (𝑆 ∈ (SubMnd‘(mulGrp‘𝑅)) → 1𝑆)
188, 17syl 17 . . . . . . 7 (𝜑1𝑆)
1914, 18sseldd 3934 . . . . . 6 (𝜑1 ∈ (Base‘𝑅))
2019, 18opelxpd 5663 . . . . 5 (𝜑 → ⟨ 1 , 1 ⟩ ∈ ((Base‘𝑅) × 𝑆))
216ovexi 7392 . . . . . 6 ∈ V
2221ecelqsi 8707 . . . . 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 2736 . . . . 5 (-g𝑅) = (-g𝑅)
26 eqid 2736 . . . . 5 ((Base‘𝑅) × 𝑆) = ((Base‘𝑅) × 𝑆)
272, 24, 3, 25, 26, 5, 6, 7, 14rlocbas 33349 . . . 4 (𝜑 → (((Base‘𝑅) × 𝑆) / ) = (Base‘𝐿))
2823, 27eleqtrd 2838 . . 3 (𝜑 → [⟨ 1 , 1 ⟩] ∈ (Base‘𝐿))
297ad4antr 732 . . . . . . . . 9 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → 𝑅 ∈ CRing)
308ad4antr 732 . . . . . . . . 9 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → 𝑆 ∈ (SubMnd‘(mulGrp‘𝑅)))
3119ad4antr 732 . . . . . . . . 9 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → 1 ∈ (Base‘𝑅))
32 simpllr 775 . . . . . . . . 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 768 . . . . . . . . 9 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → 𝑏𝑆)
35 eqid 2736 . . . . . . . . 9 (.r𝐿) = (.r𝐿)
362, 3, 4, 5, 6, 29, 30, 31, 32, 33, 34, 35rlocmulval 33351 . . . . . . . 8 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ([⟨ 1 , 1 ⟩] (.r𝐿)[⟨𝑎, 𝑏⟩] ) = [⟨( 1 (.r𝑅)𝑎), ( 1 (.r𝑅)𝑏)⟩] )
3729crngringd 20181 . . . . . . . . . . 11 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → 𝑅 ∈ Ring)
382, 3, 15, 37, 32ringlidmd 20207 . . . . . . . . . 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 3934 . . . . . . . . . . 11 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → 𝑏 ∈ (Base‘𝑅))
412, 3, 15, 37, 40ringlidmd 20207 . . . . . . . . . 10 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ( 1 (.r𝑅)𝑏) = 𝑏)
4238, 41opeq12d 4837 . . . . . . . . 9 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ⟨( 1 (.r𝑅)𝑎), ( 1 (.r𝑅)𝑏)⟩ = ⟨𝑎, 𝑏⟩)
4342eceq1d 8675 . . . . . . . 8 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → [⟨( 1 (.r𝑅)𝑎), ( 1 (.r𝑅)𝑏)⟩] = [⟨𝑎, 𝑏⟩] )
4436, 43eqtrd 2771 . . . . . . 7 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ([⟨ 1 , 1 ⟩] (.r𝐿)[⟨𝑎, 𝑏⟩] ) = [⟨𝑎, 𝑏⟩] )
45 simpr 484 . . . . . . . 8 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → 𝑥 = [⟨𝑎, 𝑏⟩] )
4645oveq2d 7374 . . . . . . 7 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ([⟨ 1 , 1 ⟩] (.r𝐿)𝑥) = ([⟨ 1 , 1 ⟩] (.r𝐿)[⟨𝑎, 𝑏⟩] ))
4744, 46, 453eqtr4d 2781 . . . . . 6 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ([⟨ 1 , 1 ⟩] (.r𝐿)𝑥) = 𝑥)
4827eqcomd 2742 . . . . . . . . 9 (𝜑 → (Base‘𝐿) = (((Base‘𝑅) × 𝑆) / ))
4948eleq2d 2822 . . . . . . . 8 (𝜑 → (𝑥 ∈ (Base‘𝐿) ↔ 𝑥 ∈ (((Base‘𝑅) × 𝑆) / )))
5049biimpa 476 . . . . . . 7 ((𝜑𝑥 ∈ (Base‘𝐿)) → 𝑥 ∈ (((Base‘𝑅) × 𝑆) / ))
5150elrlocbasi 33348 . . . . . 6 ((𝜑𝑥 ∈ (Base‘𝐿)) → ∃𝑎 ∈ (Base‘𝑅)∃𝑏𝑆 𝑥 = [⟨𝑎, 𝑏⟩] )
5247, 51r19.29vva 3196 . . . . 5 ((𝜑𝑥 ∈ (Base‘𝐿)) → ([⟨ 1 , 1 ⟩] (.r𝐿)𝑥) = 𝑥)
532, 3, 4, 5, 6, 29, 30, 32, 31, 34, 33, 35rlocmulval 33351 . . . . . . . 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 20208 . . . . . . . . . 10 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → (𝑎(.r𝑅) 1 ) = 𝑎)
552, 3, 15, 37, 40ringridmd 20208 . . . . . . . . . 10 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → (𝑏(.r𝑅) 1 ) = 𝑏)
5654, 55opeq12d 4837 . . . . . . . . 9 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ⟨(𝑎(.r𝑅) 1 ), (𝑏(.r𝑅) 1 )⟩ = ⟨𝑎, 𝑏⟩)
5756eceq1d 8675 . . . . . . . 8 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → [⟨(𝑎(.r𝑅) 1 ), (𝑏(.r𝑅) 1 )⟩] = [⟨𝑎, 𝑏⟩] )
5853, 57eqtrd 2771 . . . . . . 7 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → ([⟨𝑎, 𝑏⟩] (.r𝐿)[⟨ 1 , 1 ⟩] ) = [⟨𝑎, 𝑏⟩] )
5945oveq1d 7373 . . . . . . 7 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → (𝑥(.r𝐿)[⟨ 1 , 1 ⟩] ) = ([⟨𝑎, 𝑏⟩] (.r𝐿)[⟨ 1 , 1 ⟩] ))
6058, 59, 453eqtr4d 2781 . . . . . 6 (((((𝜑𝑥 ∈ (Base‘𝐿)) ∧ 𝑎 ∈ (Base‘𝑅)) ∧ 𝑏𝑆) ∧ 𝑥 = [⟨𝑎, 𝑏⟩] ) → (𝑥(.r𝐿)[⟨ 1 , 1 ⟩] ) = 𝑥)
6160, 51r19.29vva 3196 . . . . 5 ((𝜑𝑥 ∈ (Base‘𝐿)) → (𝑥(.r𝐿)[⟨ 1 , 1 ⟩] ) = 𝑥)
6252, 61jca 511 . . . 4 ((𝜑𝑥 ∈ (Base‘𝐿)) → (([⟨ 1 , 1 ⟩] (.r𝐿)𝑥) = 𝑥 ∧ (𝑥(.r𝐿)[⟨ 1 , 1 ⟩] ) = 𝑥))
6362ralrimiva 3128 . . 3 (𝜑 → ∀𝑥 ∈ (Base‘𝐿)(([⟨ 1 , 1 ⟩] (.r𝐿)𝑥) = 𝑥 ∧ (𝑥(.r𝐿)[⟨ 1 , 1 ⟩] ) = 𝑥))
64 eqid 2736 . . . . 5 (Base‘𝐿) = (Base‘𝐿)
65 eqid 2736 . . . . 5 (1r𝐿) = (1r𝐿)
6664, 35, 65isringid 20206 . . . 4 (𝐿 ∈ Ring → (([⟨ 1 , 1 ⟩] ∈ (Base‘𝐿) ∧ ∀𝑥 ∈ (Base‘𝐿)(([⟨ 1 , 1 ⟩] (.r𝐿)𝑥) = 𝑥 ∧ (𝑥(.r𝐿)[⟨ 1 , 1 ⟩] ) = 𝑥)) ↔ (1r𝐿) = [⟨ 1 , 1 ⟩] ))
6766biimpa 476 . . 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 836 . 2 (𝜑 → (1r𝐿) = [⟨ 1 , 1 ⟩] )
691, 68eqtr4id 2790 1 (𝜑𝐼 = (1r𝐿))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395   = wceq 1541  wcel 2113  wral 3051  wss 3901  cop 4586   × cxp 5622  cfv 6492  (class class class)co 7358  [cec 8633   / cqs 8634  Basecbs 17136  +gcplusg 17177  .rcmulr 17178  0gc0g 17359  SubMndcsubmnd 18707  -gcsg 18865  mulGrpcmgp 20075  1rcur 20116  Ringcrg 20168  CRingccrg 20169   ~RL cerl 33335   RLocal crloc 33336
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 1968  ax-7 2009  ax-8 2115  ax-9 2123  ax-10 2146  ax-11 2162  ax-12 2184  ax-ext 2708  ax-rep 5224  ax-sep 5241  ax-nul 5251  ax-pow 5310  ax-pr 5377  ax-un 7680  ax-cnex 11082  ax-resscn 11083  ax-1cn 11084  ax-icn 11085  ax-addcl 11086  ax-addrcl 11087  ax-mulcl 11088  ax-mulrcl 11089  ax-mulcom 11090  ax-addass 11091  ax-mulass 11092  ax-distr 11093  ax-i2m1 11094  ax-1ne0 11095  ax-1rid 11096  ax-rnegex 11097  ax-rrecex 11098  ax-cnre 11099  ax-pre-lttri 11100  ax-pre-lttrn 11101  ax-pre-ltadd 11102  ax-pre-mulgt0 11103
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-mo 2539  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2811  df-nfc 2885  df-ne 2933  df-nel 3037  df-ral 3052  df-rex 3061  df-rmo 3350  df-reu 3351  df-rab 3400  df-v 3442  df-sbc 3741  df-csb 3850  df-dif 3904  df-un 3906  df-in 3908  df-ss 3918  df-pss 3921  df-nul 4286  df-if 4480  df-pw 4556  df-sn 4581  df-pr 4583  df-tp 4585  df-op 4587  df-uni 4864  df-iun 4948  df-br 5099  df-opab 5161  df-mpt 5180  df-tr 5206  df-id 5519  df-eprel 5524  df-po 5532  df-so 5533  df-fr 5577  df-we 5579  df-xp 5630  df-rel 5631  df-cnv 5632  df-co 5633  df-dm 5634  df-rn 5635  df-res 5636  df-ima 5637  df-pred 6259  df-ord 6320  df-on 6321  df-lim 6322  df-suc 6323  df-iota 6448  df-fun 6494  df-fn 6495  df-f 6496  df-f1 6497  df-fo 6498  df-f1o 6499  df-fv 6500  df-riota 7315  df-ov 7361  df-oprab 7362  df-mpo 7363  df-om 7809  df-1st 7933  df-2nd 7934  df-frecs 8223  df-wrecs 8254  df-recs 8303  df-rdg 8341  df-1o 8397  df-er 8635  df-ec 8637  df-qs 8641  df-en 8884  df-dom 8885  df-sdom 8886  df-fin 8887  df-sup 9345  df-inf 9346  df-pnf 11168  df-mnf 11169  df-xr 11170  df-ltxr 11171  df-le 11172  df-sub 11366  df-neg 11367  df-nn 12146  df-2 12208  df-3 12209  df-4 12210  df-5 12211  df-6 12212  df-7 12213  df-8 12214  df-9 12215  df-n0 12402  df-z 12489  df-dec 12608  df-uz 12752  df-fz 13424  df-struct 17074  df-sets 17091  df-slot 17109  df-ndx 17121  df-base 17137  df-ress 17158  df-plusg 17190  df-mulr 17191  df-sca 17193  df-vsca 17194  df-ip 17195  df-tset 17196  df-ple 17197  df-ds 17199  df-0g 17361  df-imas 17429  df-qus 17430  df-mgm 18565  df-sgrp 18644  df-mnd 18660  df-submnd 18709  df-grp 18866  df-minusg 18867  df-sbg 18868  df-cmn 19711  df-abl 19712  df-mgp 20076  df-rng 20088  df-ur 20117  df-ring 20170  df-cring 20171  df-erl 33337  df-rloc 33338
This theorem is referenced by:  rlocf1  33355  fracfld  33390  zringfrac  33635
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