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Theorem idomsubr 33573
Description: Every integral domain is isomorphic with a subring of some field. (Proposed by Gerard Lang, 10-May-2025.) (Contributed by Thierry Arnoux, 10-May-2025.)
Hypothesis
Ref Expression
idomsubr.1 (𝜑𝑅 ∈ IDomn)
Assertion
Ref Expression
idomsubr (𝜑 → ∃𝑓 ∈ Field ∃𝑠 ∈ (SubRing‘𝑓)𝑅𝑟 (𝑓s 𝑠))
Distinct variable groups:   𝑅,𝑓,𝑠   𝜑,𝑓,𝑠

Proof of Theorem idomsubr
Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 fveq2 6882 . . 3 (𝑓 = ( Frac ‘𝑅) → (SubRing‘𝑓) = (SubRing‘( Frac ‘𝑅)))
2 oveq1 7418 . . . 4 (𝑓 = ( Frac ‘𝑅) → (𝑓s 𝑠) = (( Frac ‘𝑅) ↾s 𝑠))
32breq2d 5125 . . 3 (𝑓 = ( Frac ‘𝑅) → (𝑅𝑟 (𝑓s 𝑠) ↔ 𝑅𝑟 (( Frac ‘𝑅) ↾s 𝑠)))
41, 3rexeqbidv 3346 . 2 (𝑓 = ( Frac ‘𝑅) → (∃𝑠 ∈ (SubRing‘𝑓)𝑅𝑟 (𝑓s 𝑠) ↔ ∃𝑠 ∈ (SubRing‘( Frac ‘𝑅))𝑅𝑟 (( Frac ‘𝑅) ↾s 𝑠)))
5 idomsubr.1 . . 3 (𝜑𝑅 ∈ IDomn)
65fracfld 33572 . 2 (𝜑 → ( Frac ‘𝑅) ∈ Field)
7 oveq2 7419 . . . 4 (𝑠 = ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) → (( Frac ‘𝑅) ↾s 𝑠) = (( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅)))))
87breq2d 5125 . . 3 (𝑠 = ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) → (𝑅𝑟 (( Frac ‘𝑅) ↾s 𝑠) ↔ 𝑅𝑟 (( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))))))
9 eqid 2769 . . . . 5 (Base‘𝑅) = (Base‘𝑅)
10 eqid 2769 . . . . 5 (RLReg‘𝑅) = (RLReg‘𝑅)
11 eqid 2769 . . . . 5 (1r𝑅) = (1r𝑅)
125idomcringd 20811 . . . . 5 (𝜑𝑅 ∈ CRing)
13 eqid 2769 . . . . 5 (𝑅 ~RL (RLReg‘𝑅)) = (𝑅 ~RL (RLReg‘𝑅))
14 opeq1 4842 . . . . . . 7 (𝑥 = 𝑦 → ⟨𝑥, (1r𝑅)⟩ = ⟨𝑦, (1r𝑅)⟩)
1514eceq1d 8735 . . . . . 6 (𝑥 = 𝑦 → [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅)) = [⟨𝑦, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅)))
1615cbvmptv 5219 . . . . 5 (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) = (𝑦 ∈ (Base‘𝑅) ↦ [⟨𝑦, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅)))
179, 10, 11, 12, 13, 16fracf1 33571 . . . 4 (𝜑 → ((𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))):(Base‘𝑅)–1-1→(((Base‘𝑅) × (RLReg‘𝑅)) / (𝑅 ~RL (RLReg‘𝑅))) ∧ (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ∈ (𝑅 RingHom ( Frac ‘𝑅))))
18 rnrhmsubrg 20690 . . . 4 ((𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ∈ (𝑅 RingHom ( Frac ‘𝑅)) → ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ∈ (SubRing‘( Frac ‘𝑅)))
1917, 18simpl2im 512 . . 3 (𝜑 → ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ∈ (SubRing‘( Frac ‘𝑅)))
20 ssidd 3968 . . . . . 6 (𝜑 → ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ⊆ ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))))
2117simprd 500 . . . . . 6 (𝜑 → (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ∈ (𝑅 RingHom ( Frac ‘𝑅)))
22 eqid 2769 . . . . . . . 8 (( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅)))) = (( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))))
2322resrhm2b 20687 . . . . . . 7 ((ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ∈ (SubRing‘( Frac ‘𝑅)) ∧ ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ⊆ ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅)))) → ((𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ∈ (𝑅 RingHom ( Frac ‘𝑅)) ↔ (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ∈ (𝑅 RingHom (( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅)))))))
2423biimpa 481 . . . . . 6 (((ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ∈ (SubRing‘( Frac ‘𝑅)) ∧ ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ⊆ ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅)))) ∧ (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ∈ (𝑅 RingHom ( Frac ‘𝑅))) → (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ∈ (𝑅 RingHom (( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))))))
2519, 20, 21, 24syl21anc 850 . . . . 5 (𝜑 → (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ∈ (𝑅 RingHom (( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))))))
2617simpld 499 . . . . . . 7 (𝜑 → (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))):(Base‘𝑅)–1-1→(((Base‘𝑅) × (RLReg‘𝑅)) / (𝑅 ~RL (RLReg‘𝑅))))
27 f1f1orn 6833 . . . . . . 7 ((𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))):(Base‘𝑅)–1-1→(((Base‘𝑅) × (RLReg‘𝑅)) / (𝑅 ~RL (RLReg‘𝑅))) → (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))):(Base‘𝑅)–1-1-onto→ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))))
2826, 27syl 18 . . . . . 6 (𝜑 → (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))):(Base‘𝑅)–1-1-onto→ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))))
29 f1f 6775 . . . . . . . . . . 11 ((𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))):(Base‘𝑅)–1-1→(((Base‘𝑅) × (RLReg‘𝑅)) / (𝑅 ~RL (RLReg‘𝑅))) → (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))):(Base‘𝑅)⟶(((Base‘𝑅) × (RLReg‘𝑅)) / (𝑅 ~RL (RLReg‘𝑅))))
3026, 29syl 18 . . . . . . . . . 10 (𝜑 → (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))):(Base‘𝑅)⟶(((Base‘𝑅) × (RLReg‘𝑅)) / (𝑅 ~RL (RLReg‘𝑅))))
3130frnd 6715 . . . . . . . . 9 (𝜑 → ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ⊆ (((Base‘𝑅) × (RLReg‘𝑅)) / (𝑅 ~RL (RLReg‘𝑅))))
32 eqid 2769 . . . . . . . . . 10 ( Frac ‘𝑅) = ( Frac ‘𝑅)
339, 10, 32, 13fracbas 33569 . . . . . . . . 9 (((Base‘𝑅) × (RLReg‘𝑅)) / (𝑅 ~RL (RLReg‘𝑅))) = (Base‘( Frac ‘𝑅))
3431, 33sseqtrdi 3985 . . . . . . . 8 (𝜑 → ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ⊆ (Base‘( Frac ‘𝑅)))
35 eqid 2769 . . . . . . . . 9 (Base‘( Frac ‘𝑅)) = (Base‘( Frac ‘𝑅))
3622, 35ressbas2 17298 . . . . . . . 8 (ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ⊆ (Base‘( Frac ‘𝑅)) → ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) = (Base‘(( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))))))
3734, 36syl 18 . . . . . . 7 (𝜑 → ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) = (Base‘(( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))))))
3837f1oeq3d 6818 . . . . . 6 (𝜑 → ((𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))):(Base‘𝑅)–1-1-onto→ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ↔ (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))):(Base‘𝑅)–1-1-onto→(Base‘(( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅)))))))
3928, 38mpbid 235 . . . . 5 (𝜑 → (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))):(Base‘𝑅)–1-1-onto→(Base‘(( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))))))
40 eqid 2769 . . . . . 6 (Base‘(( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))))) = (Base‘(( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅)))))
419, 40isrim 20574 . . . . 5 ((𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ∈ (𝑅 RingIso (( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))))) ↔ ((𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ∈ (𝑅 RingHom (( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))))) ∧ (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))):(Base‘𝑅)–1-1-onto→(Base‘(( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅)))))))
4225, 39, 41sylanbrc 594 . . . 4 (𝜑 → (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ∈ (𝑅 RingIso (( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))))))
43 brrici 20587 . . . 4 ((𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))) ∈ (𝑅 RingIso (( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅))))) → 𝑅𝑟 (( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅)))))
4442, 43syl 18 . . 3 (𝜑𝑅𝑟 (( Frac ‘𝑅) ↾s ran (𝑥 ∈ (Base‘𝑅) ↦ [⟨𝑥, (1r𝑅)⟩](𝑅 ~RL (RLReg‘𝑅)))))
458, 19, 44rspcedvdw 3593 . 2 (𝜑 → ∃𝑠 ∈ (SubRing‘( Frac ‘𝑅))𝑅𝑟 (( Frac ‘𝑅) ↾s 𝑠))
464, 6, 45rspcedvdw 3593 1 (𝜑 → ∃𝑓 ∈ Field ∃𝑠 ∈ (SubRing‘𝑓)𝑅𝑟 (𝑓s 𝑠))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 400   = wceq 1567  wcel 2149  wrex 3095  wss 3913  cop 4600   class class class wbr 5113  cmpt 5196   × cxp 5660  ran crn 5663  wf 6533  1-1wf1 6534  1-1-ontowf1o 6536  cfv 6537  (class class class)co 7411  [cec 8692   / cqs 8693  Basecbs 17269  s cress 17290  1rcur 20263   RingHom crh 20551   RingIso crs 20552  𝑟 cric 20553  SubRingcsubrg 20654  RLRegcrlreg 20776  IDomncidom 20778  Fieldcfield 20814   ~RL cerl 33514   Frac cfrac 33566
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1822  ax-4 1836  ax-5 1937  ax-6 1994  ax-7 2035  ax-8 2151  ax-9 2159  ax-10 2182  ax-11 2198  ax-12 2219  ax-ext 2741  ax-rep 5242  ax-sep 5261  ax-nul 5271  ax-pow 5337  ax-pr 5405  ax-un 7733  ax-cnex 11156  ax-resscn 11157  ax-1cn 11158  ax-icn 11159  ax-addcl 11160  ax-addrcl 11161  ax-mulcl 11162  ax-mulrcl 11163  ax-mulcom 11164  ax-addass 11165  ax-mulass 11166  ax-distr 11167  ax-i2m1 11168  ax-1ne0 11169  ax-1rid 11170  ax-rnegex 11171  ax-rrecex 11172  ax-cnre 11173  ax-pre-lttri 11174  ax-pre-lttrn 11175  ax-pre-ltadd 11176  ax-pre-mulgt0 11177
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3or 1102  df-3an 1103  df-tru 1570  df-fal 1580  df-ex 1807  df-nf 1811  df-sb 2098  df-mo 2573  df-eu 2603  df-clab 2748  df-cleq 2761  df-clel 2844  df-nfc 2918  df-ne 2965  df-nel 3071  df-ral 3086  df-rex 3096  df-rmo 3376  df-reu 3377  df-rab 3424  df-v 3465  df-sbc 3754  df-csb 3862  df-dif 3916  df-un 3918  df-in 3920  df-ss 3930  df-pss 3933  df-nul 4295  df-if 4493  df-pw 4569  df-sn 4595  df-pr 4597  df-tp 4599  df-op 4601  df-uni 4877  df-iun 4962  df-br 5114  df-opab 5178  df-mpt 5197  df-tr 5223  df-id 5557  df-eprel 5562  df-po 5570  df-so 5571  df-fr 5615  df-we 5617  df-xp 5668  df-rel 5669  df-cnv 5670  df-co 5671  df-dm 5672  df-rn 5673  df-res 5674  df-ima 5675  df-pred 6303  df-ord 6364  df-on 6365  df-lim 6366  df-suc 6367  df-iota 6493  df-fun 6539  df-fn 6540  df-f 6541  df-f1 6542  df-fo 6543  df-f1o 6544  df-fv 6545  df-riota 7368  df-ov 7414  df-oprab 7415  df-mpo 7416  df-om 7863  df-1st 7986  df-2nd 7987  df-tpos 8222  df-frecs 8278  df-wrecs 8309  df-recs 8358  df-rdg 8397  df-1o 8453  df-er 8694  df-ec 8696  df-qs 8700  df-map 8826  df-en 8944  df-dom 8945  df-sdom 8946  df-fin 8947  df-sup 9402  df-inf 9403  df-pnf 11245  df-mnf 11246  df-xr 11247  df-ltxr 11248  df-le 11249  df-sub 11443  df-neg 11444  df-nn 12234  df-2 12303  df-3 12304  df-4 12305  df-5 12306  df-6 12307  df-7 12308  df-8 12309  df-9 12310  df-n0 12505  df-z 12592  df-dec 12712  df-uz 12863  df-fz 13536  df-struct 17207  df-sets 17224  df-slot 17242  df-ndx 17254  df-base 17270  df-ress 17291  df-plusg 17323  df-mulr 17324  df-sca 17326  df-vsca 17327  df-ip 17328  df-tset 17329  df-ple 17330  df-ds 17332  df-0g 17494  df-imas 17562  df-qus 17563  df-mgm 18698  df-sgrp 18777  df-mnd 18793  df-mhm 18841  df-submnd 18842  df-grp 19003  df-minusg 19004  df-sbg 19005  df-subg 19189  df-ghm 19284  df-cmn 19852  df-abl 19853  df-mgp 20217  df-rng 20231  df-ur 20264  df-ring 20317  df-cring 20318  df-oppr 20419  df-dvdsr 20439  df-unit 20440  df-invr 20470  df-rhm 20554  df-rim 20555  df-ric 20557  df-nzr 20596  df-subrng 20631  df-subrg 20655  df-rlreg 20779  df-domn 20780  df-idom 20781  df-drng 20815  df-field 20816  df-erl 33516  df-rloc 33517  df-frac 33567
This theorem is referenced by: (None)
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