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Theorem rngqiprngimf1 21210
Description: 𝐹 is a one-to-one function from (the base set of) a non-unital ring to the product of the (base set of the) quotient with a two-sided ideal and the (base set of the) two-sided ideal. (Contributed by AV, 7-Mar-2025.)
Hypotheses
Ref Expression
rng2idlring.r (𝜑𝑅 ∈ Rng)
rng2idlring.i (𝜑𝐼 ∈ (2Ideal‘𝑅))
rng2idlring.j 𝐽 = (𝑅s 𝐼)
rng2idlring.u (𝜑𝐽 ∈ Ring)
rng2idlring.b 𝐵 = (Base‘𝑅)
rng2idlring.t · = (.r𝑅)
rng2idlring.1 1 = (1r𝐽)
rngqiprngim.g = (𝑅 ~QG 𝐼)
rngqiprngim.q 𝑄 = (𝑅 /s )
rngqiprngim.c 𝐶 = (Base‘𝑄)
rngqiprngim.p 𝑃 = (𝑄 ×s 𝐽)
rngqiprngim.f 𝐹 = (𝑥𝐵 ↦ ⟨[𝑥] , ( 1 · 𝑥)⟩)
Assertion
Ref Expression
rngqiprngimf1 (𝜑𝐹:𝐵1-1→(𝐶 × 𝐼))
Distinct variable groups:   𝑥,𝐶   𝑥,𝐼   𝑥,𝐵   𝜑,𝑥   𝑥,   𝑥, 1   𝑥, ·   𝑥,𝑅
Allowed substitution hints:   𝑃(𝑥)   𝑄(𝑥)   𝐹(𝑥)   𝐽(𝑥)

Proof of Theorem rngqiprngimf1
Dummy variable 𝑎 is distinct from all other variables.
StepHypRef Expression
1 rng2idlring.r . . . . . . . . 9 (𝜑𝑅 ∈ Rng)
2 rng2idlring.i . . . . . . . . 9 (𝜑𝐼 ∈ (2Ideal‘𝑅))
3 rng2idlring.j . . . . . . . . . . . 12 𝐽 = (𝑅s 𝐼)
4 rng2idlring.u . . . . . . . . . . . . 13 (𝜑𝐽 ∈ Ring)
5 ringrng 20194 . . . . . . . . . . . . 13 (𝐽 ∈ Ring → 𝐽 ∈ Rng)
64, 5syl 17 . . . . . . . . . . . 12 (𝜑𝐽 ∈ Rng)
73, 6eqeltrrid 2833 . . . . . . . . . . 11 (𝜑 → (𝑅s 𝐼) ∈ Rng)
81, 2, 7rng2idlnsg 21176 . . . . . . . . . 10 (𝜑𝐼 ∈ (NrmSGrp‘𝑅))
9 nsgsubg 19090 . . . . . . . . . 10 (𝐼 ∈ (NrmSGrp‘𝑅) → 𝐼 ∈ (SubGrp‘𝑅))
108, 9syl 17 . . . . . . . . 9 (𝜑𝐼 ∈ (SubGrp‘𝑅))
11 rngqiprngim.q . . . . . . . . . . 11 𝑄 = (𝑅 /s )
12 rngqiprngim.g . . . . . . . . . . . 12 = (𝑅 ~QG 𝐼)
1312oveq2i 7398 . . . . . . . . . . 11 (𝑅 /s ) = (𝑅 /s (𝑅 ~QG 𝐼))
1411, 13eqtri 2752 . . . . . . . . . 10 𝑄 = (𝑅 /s (𝑅 ~QG 𝐼))
15 eqid 2729 . . . . . . . . . 10 (2Ideal‘𝑅) = (2Ideal‘𝑅)
1614, 15qus2idrng 21183 . . . . . . . . 9 ((𝑅 ∈ Rng ∧ 𝐼 ∈ (2Ideal‘𝑅) ∧ 𝐼 ∈ (SubGrp‘𝑅)) → 𝑄 ∈ Rng)
171, 2, 10, 16syl3anc 1373 . . . . . . . 8 (𝜑𝑄 ∈ Rng)
18 rnggrp 20067 . . . . . . . . 9 (𝑄 ∈ Rng → 𝑄 ∈ Grp)
1918grpmndd 18878 . . . . . . . 8 (𝑄 ∈ Rng → 𝑄 ∈ Mnd)
2017, 19syl 17 . . . . . . 7 (𝜑𝑄 ∈ Mnd)
21 ringmnd 20152 . . . . . . . 8 (𝐽 ∈ Ring → 𝐽 ∈ Mnd)
224, 21syl 17 . . . . . . 7 (𝜑𝐽 ∈ Mnd)
23 rngqiprngim.p . . . . . . . 8 𝑃 = (𝑄 ×s 𝐽)
2423xpsmnd0 18705 . . . . . . 7 ((𝑄 ∈ Mnd ∧ 𝐽 ∈ Mnd) → (0g𝑃) = ⟨(0g𝑄), (0g𝐽)⟩)
2520, 22, 24syl2anc 584 . . . . . 6 (𝜑 → (0g𝑃) = ⟨(0g𝑄), (0g𝐽)⟩)
2625sneqd 4601 . . . . 5 (𝜑 → {(0g𝑃)} = {⟨(0g𝑄), (0g𝐽)⟩})
2726imaeq2d 6031 . . . 4 (𝜑 → (𝐹 “ {(0g𝑃)}) = (𝐹 “ {⟨(0g𝑄), (0g𝐽)⟩}))
28 nfv 1914 . . . . . 6 𝑥𝜑
29 opex 5424 . . . . . . 7 ⟨[𝑥] , ( 1 · 𝑥)⟩ ∈ V
3029a1i 11 . . . . . 6 ((𝜑𝑥𝐵) → ⟨[𝑥] , ( 1 · 𝑥)⟩ ∈ V)
31 rngqiprngim.f . . . . . 6 𝐹 = (𝑥𝐵 ↦ ⟨[𝑥] , ( 1 · 𝑥)⟩)
3228, 30, 31fnmptd 6659 . . . . 5 (𝜑𝐹 Fn 𝐵)
33 fncnvima2 7033 . . . . 5 (𝐹 Fn 𝐵 → (𝐹 “ {⟨(0g𝑄), (0g𝐽)⟩}) = {𝑎𝐵 ∣ (𝐹𝑎) ∈ {⟨(0g𝑄), (0g𝐽)⟩}})
3432, 33syl 17 . . . 4 (𝜑 → (𝐹 “ {⟨(0g𝑄), (0g𝐽)⟩}) = {𝑎𝐵 ∣ (𝐹𝑎) ∈ {⟨(0g𝑄), (0g𝐽)⟩}})
35 rng2idlring.b . . . . . . . 8 𝐵 = (Base‘𝑅)
36 rng2idlring.t . . . . . . . 8 · = (.r𝑅)
37 rng2idlring.1 . . . . . . . 8 1 = (1r𝐽)
38 rngqiprngim.c . . . . . . . 8 𝐶 = (Base‘𝑄)
391, 2, 3, 4, 35, 36, 37, 12, 11, 38, 23, 31rngqiprngimfv 21208 . . . . . . 7 ((𝜑𝑎𝐵) → (𝐹𝑎) = ⟨[𝑎] , ( 1 · 𝑎)⟩)
4039eleq1d 2813 . . . . . 6 ((𝜑𝑎𝐵) → ((𝐹𝑎) ∈ {⟨(0g𝑄), (0g𝐽)⟩} ↔ ⟨[𝑎] , ( 1 · 𝑎)⟩ ∈ {⟨(0g𝑄), (0g𝐽)⟩}))
4140rabbidva 3412 . . . . 5 (𝜑 → {𝑎𝐵 ∣ (𝐹𝑎) ∈ {⟨(0g𝑄), (0g𝐽)⟩}} = {𝑎𝐵 ∣ ⟨[𝑎] , ( 1 · 𝑎)⟩ ∈ {⟨(0g𝑄), (0g𝐽)⟩}})
42 eceq1 8710 . . . . . . . 8 (𝑎 = (0g𝑅) → [𝑎] = [(0g𝑅)] )
43 oveq2 7395 . . . . . . . 8 (𝑎 = (0g𝑅) → ( 1 · 𝑎) = ( 1 · (0g𝑅)))
4442, 43opeq12d 4845 . . . . . . 7 (𝑎 = (0g𝑅) → ⟨[𝑎] , ( 1 · 𝑎)⟩ = ⟨[(0g𝑅)] , ( 1 · (0g𝑅))⟩)
4544eleq1d 2813 . . . . . 6 (𝑎 = (0g𝑅) → (⟨[𝑎] , ( 1 · 𝑎)⟩ ∈ {⟨(0g𝑄), (0g𝐽)⟩} ↔ ⟨[(0g𝑅)] , ( 1 · (0g𝑅))⟩ ∈ {⟨(0g𝑄), (0g𝐽)⟩}))
46 rnggrp 20067 . . . . . . . . 9 (𝑅 ∈ Rng → 𝑅 ∈ Grp)
471, 46syl 17 . . . . . . . 8 (𝜑𝑅 ∈ Grp)
4847grpmndd 18878 . . . . . . 7 (𝜑𝑅 ∈ Mnd)
49 eqid 2729 . . . . . . . 8 (0g𝑅) = (0g𝑅)
5035, 49mndidcl 18676 . . . . . . 7 (𝑅 ∈ Mnd → (0g𝑅) ∈ 𝐵)
5148, 50syl 17 . . . . . 6 (𝜑 → (0g𝑅) ∈ 𝐵)
5212eceq2i 8713 . . . . . . . . 9 [(0g𝑅)] = [(0g𝑅)](𝑅 ~QG 𝐼)
5314, 49qus0 19121 . . . . . . . . . 10 (𝐼 ∈ (NrmSGrp‘𝑅) → [(0g𝑅)](𝑅 ~QG 𝐼) = (0g𝑄))
548, 53syl 17 . . . . . . . . 9 (𝜑 → [(0g𝑅)](𝑅 ~QG 𝐼) = (0g𝑄))
5552, 54eqtrid 2776 . . . . . . . 8 (𝜑 → [(0g𝑅)] = (0g𝑄))
561, 2, 7rng2idl0 21177 . . . . . . . . . . 11 (𝜑 → (0g𝑅) ∈ 𝐼)
5735, 152idlss 21172 . . . . . . . . . . . 12 (𝐼 ∈ (2Ideal‘𝑅) → 𝐼𝐵)
582, 57syl 17 . . . . . . . . . . 11 (𝜑𝐼𝐵)
593, 35, 49ress0g 18689 . . . . . . . . . . 11 ((𝑅 ∈ Mnd ∧ (0g𝑅) ∈ 𝐼𝐼𝐵) → (0g𝑅) = (0g𝐽))
6048, 56, 58, 59syl3anc 1373 . . . . . . . . . 10 (𝜑 → (0g𝑅) = (0g𝐽))
6160oveq2d 7403 . . . . . . . . 9 (𝜑 → ( 1 · (0g𝑅)) = ( 1 · (0g𝐽)))
623, 36ressmulr 17270 . . . . . . . . . . 11 (𝐼 ∈ (2Ideal‘𝑅) → · = (.r𝐽))
632, 62syl 17 . . . . . . . . . 10 (𝜑· = (.r𝐽))
6463oveqd 7404 . . . . . . . . 9 (𝜑 → ( 1 · (0g𝐽)) = ( 1 (.r𝐽)(0g𝐽)))
65 eqid 2729 . . . . . . . . . . 11 (Base‘𝐽) = (Base‘𝐽)
6665, 37ringidcl 20174 . . . . . . . . . 10 (𝐽 ∈ Ring → 1 ∈ (Base‘𝐽))
67 eqid 2729 . . . . . . . . . . 11 (.r𝐽) = (.r𝐽)
68 eqid 2729 . . . . . . . . . . 11 (0g𝐽) = (0g𝐽)
6965, 67, 68ringrz 20203 . . . . . . . . . 10 ((𝐽 ∈ Ring ∧ 1 ∈ (Base‘𝐽)) → ( 1 (.r𝐽)(0g𝐽)) = (0g𝐽))
704, 66, 69syl2anc2 585 . . . . . . . . 9 (𝜑 → ( 1 (.r𝐽)(0g𝐽)) = (0g𝐽))
7161, 64, 703eqtrd 2768 . . . . . . . 8 (𝜑 → ( 1 · (0g𝑅)) = (0g𝐽))
7255, 71opeq12d 4845 . . . . . . 7 (𝜑 → ⟨[(0g𝑅)] , ( 1 · (0g𝑅))⟩ = ⟨(0g𝑄), (0g𝐽)⟩)
73 opex 5424 . . . . . . . 8 ⟨[(0g𝑅)] , ( 1 · (0g𝑅))⟩ ∈ V
7473elsn 4604 . . . . . . 7 (⟨[(0g𝑅)] , ( 1 · (0g𝑅))⟩ ∈ {⟨(0g𝑄), (0g𝐽)⟩} ↔ ⟨[(0g𝑅)] , ( 1 · (0g𝑅))⟩ = ⟨(0g𝑄), (0g𝐽)⟩)
7572, 74sylibr 234 . . . . . 6 (𝜑 → ⟨[(0g𝑅)] , ( 1 · (0g𝑅))⟩ ∈ {⟨(0g𝑄), (0g𝐽)⟩})
76 opex 5424 . . . . . . . . . 10 ⟨[𝑎] , ( 1 · 𝑎)⟩ ∈ V
7776elsn 4604 . . . . . . . . 9 (⟨[𝑎] , ( 1 · 𝑎)⟩ ∈ {⟨(0g𝑄), (0g𝐽)⟩} ↔ ⟨[𝑎] , ( 1 · 𝑎)⟩ = ⟨(0g𝑄), (0g𝐽)⟩)
7812ovexi 7421 . . . . . . . . . . 11 ∈ V
79 ecexg 8675 . . . . . . . . . . 11 ( ∈ V → [𝑎] ∈ V)
8078, 79ax-mp 5 . . . . . . . . . 10 [𝑎] ∈ V
81 ovex 7420 . . . . . . . . . 10 ( 1 · 𝑎) ∈ V
8280, 81opth 5436 . . . . . . . . 9 (⟨[𝑎] , ( 1 · 𝑎)⟩ = ⟨(0g𝑄), (0g𝐽)⟩ ↔ ([𝑎] = (0g𝑄) ∧ ( 1 · 𝑎) = (0g𝐽)))
8377, 82bitri 275 . . . . . . . 8 (⟨[𝑎] , ( 1 · 𝑎)⟩ ∈ {⟨(0g𝑄), (0g𝐽)⟩} ↔ ([𝑎] = (0g𝑄) ∧ ( 1 · 𝑎) = (0g𝐽)))
841, 2, 3, 4, 35, 36, 37, 12, 11rngqiprngimf1lem 21204 . . . . . . . 8 ((𝜑𝑎𝐵) → (([𝑎] = (0g𝑄) ∧ ( 1 · 𝑎) = (0g𝐽)) → 𝑎 = (0g𝑅)))
8583, 84biimtrid 242 . . . . . . 7 ((𝜑𝑎𝐵) → (⟨[𝑎] , ( 1 · 𝑎)⟩ ∈ {⟨(0g𝑄), (0g𝐽)⟩} → 𝑎 = (0g𝑅)))
8685imp 406 . . . . . 6 (((𝜑𝑎𝐵) ∧ ⟨[𝑎] , ( 1 · 𝑎)⟩ ∈ {⟨(0g𝑄), (0g𝐽)⟩}) → 𝑎 = (0g𝑅))
8745, 51, 75, 86rabeqsnd 4633 . . . . 5 (𝜑 → {𝑎𝐵 ∣ ⟨[𝑎] , ( 1 · 𝑎)⟩ ∈ {⟨(0g𝑄), (0g𝐽)⟩}} = {(0g𝑅)})
8841, 87eqtrd 2764 . . . 4 (𝜑 → {𝑎𝐵 ∣ (𝐹𝑎) ∈ {⟨(0g𝑄), (0g𝐽)⟩}} = {(0g𝑅)})
8927, 34, 883eqtrd 2768 . . 3 (𝜑 → (𝐹 “ {(0g𝑃)}) = {(0g𝑅)})
901, 2, 3, 4, 35, 36, 37, 12, 11, 38, 23, 31rngqiprngghm 21209 . . . 4 (𝜑𝐹 ∈ (𝑅 GrpHom 𝑃))
91 eqid 2729 . . . . 5 (Base‘𝑃) = (Base‘𝑃)
92 eqid 2729 . . . . 5 (0g𝑃) = (0g𝑃)
9335, 91, 49, 92kerf1ghm 19179 . . . 4 (𝐹 ∈ (𝑅 GrpHom 𝑃) → (𝐹:𝐵1-1→(Base‘𝑃) ↔ (𝐹 “ {(0g𝑃)}) = {(0g𝑅)}))
9490, 93syl 17 . . 3 (𝜑 → (𝐹:𝐵1-1→(Base‘𝑃) ↔ (𝐹 “ {(0g𝑃)}) = {(0g𝑅)}))
9589, 94mpbird 257 . 2 (𝜑𝐹:𝐵1-1→(Base‘𝑃))
96 eqidd 2730 . . 3 (𝜑𝐹 = 𝐹)
97 eqidd 2730 . . 3 (𝜑𝐵 = 𝐵)
981, 2, 3, 4, 35, 36, 37, 12, 11, 38, 23rngqipbas 21205 . . 3 (𝜑 → (Base‘𝑃) = (𝐶 × 𝐼))
9996, 97, 98f1eq123d 6792 . 2 (𝜑 → (𝐹:𝐵1-1→(Base‘𝑃) ↔ 𝐹:𝐵1-1→(𝐶 × 𝐼)))
10095, 99mpbid 232 1 (𝜑𝐹:𝐵1-1→(𝐶 × 𝐼))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 206  wa 395   = wceq 1540  wcel 2109  {crab 3405  Vcvv 3447  wss 3914  {csn 4589  cop 4595  cmpt 5188   × cxp 5636  ccnv 5637  cima 5641   Fn wfn 6506  1-1wf1 6508  cfv 6511  (class class class)co 7387  [cec 8669  Basecbs 17179  s cress 17200  .rcmulr 17221  0gc0g 17402   /s cqus 17468   ×s cxps 17469  Mndcmnd 18661  Grpcgrp 18865  SubGrpcsubg 19052  NrmSGrpcnsg 19053   ~QG cqg 19054   GrpHom cghm 19144  Rngcrng 20061  1rcur 20090  Ringcrg 20142  2Idealc2idl 21159
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 2701  ax-rep 5234  ax-sep 5251  ax-nul 5261  ax-pow 5320  ax-pr 5387  ax-un 7711  ax-cnex 11124  ax-resscn 11125  ax-1cn 11126  ax-icn 11127  ax-addcl 11128  ax-addrcl 11129  ax-mulcl 11130  ax-mulrcl 11131  ax-mulcom 11132  ax-addass 11133  ax-mulass 11134  ax-distr 11135  ax-i2m1 11136  ax-1ne0 11137  ax-1rid 11138  ax-rnegex 11139  ax-rrecex 11140  ax-cnre 11141  ax-pre-lttri 11142  ax-pre-lttrn 11143  ax-pre-ltadd 11144  ax-pre-mulgt0 11145
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 2533  df-eu 2562  df-clab 2708  df-cleq 2721  df-clel 2803  df-nfc 2878  df-ne 2926  df-nel 3030  df-ral 3045  df-rex 3054  df-rmo 3354  df-reu 3355  df-rab 3406  df-v 3449  df-sbc 3754  df-csb 3863  df-dif 3917  df-un 3919  df-in 3921  df-ss 3931  df-pss 3934  df-nul 4297  df-if 4489  df-pw 4565  df-sn 4590  df-pr 4592  df-tp 4594  df-op 4596  df-uni 4872  df-iun 4957  df-br 5108  df-opab 5170  df-mpt 5189  df-tr 5215  df-id 5533  df-eprel 5538  df-po 5546  df-so 5547  df-fr 5591  df-we 5593  df-xp 5644  df-rel 5645  df-cnv 5646  df-co 5647  df-dm 5648  df-rn 5649  df-res 5650  df-ima 5651  df-pred 6274  df-ord 6335  df-on 6336  df-lim 6337  df-suc 6338  df-iota 6464  df-fun 6513  df-fn 6514  df-f 6515  df-f1 6516  df-fo 6517  df-f1o 6518  df-fv 6519  df-riota 7344  df-ov 7390  df-oprab 7391  df-mpo 7392  df-om 7843  df-1st 7968  df-2nd 7969  df-tpos 8205  df-frecs 8260  df-wrecs 8291  df-recs 8340  df-rdg 8378  df-1o 8434  df-2o 8435  df-er 8671  df-ec 8673  df-qs 8677  df-map 8801  df-ixp 8871  df-en 8919  df-dom 8920  df-sdom 8921  df-fin 8922  df-sup 9393  df-inf 9394  df-pnf 11210  df-mnf 11211  df-xr 11212  df-ltxr 11213  df-le 11214  df-sub 11407  df-neg 11408  df-nn 12187  df-2 12249  df-3 12250  df-4 12251  df-5 12252  df-6 12253  df-7 12254  df-8 12255  df-9 12256  df-n0 12443  df-z 12530  df-dec 12650  df-uz 12794  df-fz 13469  df-struct 17117  df-sets 17134  df-slot 17152  df-ndx 17164  df-base 17180  df-ress 17201  df-plusg 17233  df-mulr 17234  df-sca 17236  df-vsca 17237  df-ip 17238  df-tset 17239  df-ple 17240  df-ds 17242  df-hom 17244  df-cco 17245  df-0g 17404  df-prds 17410  df-imas 17471  df-qus 17472  df-xps 17473  df-mgm 18567  df-sgrp 18646  df-mnd 18662  df-grp 18868  df-minusg 18869  df-sbg 18870  df-subg 19055  df-nsg 19056  df-eqg 19057  df-ghm 19145  df-cmn 19712  df-abl 19713  df-mgp 20050  df-rng 20062  df-ur 20091  df-ring 20144  df-oppr 20246  df-dvdsr 20266  df-unit 20267  df-invr 20297  df-subrng 20455  df-lss 20838  df-sra 21080  df-rgmod 21081  df-lidl 21118  df-2idl 21160
This theorem is referenced by:  rngqiprngim  21214
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