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Theorem rngqiprngim 21302

Description: 𝐹 is an isomorphism of non-unital rings. (Contributed by AV, 21-Feb-2025.)

**Hypotheses**
Ref	Expression
rng2idlring.r	⊢ (𝜑 → 𝑅 ∈ Rng)
rng2idlring.i	⊢ (𝜑 → 𝐼 ∈ (2Ideal‘𝑅))
rng2idlring.j	⊢ 𝐽 = (𝑅 ↾_s 𝐼)
rng2idlring.u	⊢ (𝜑 → 𝐽 ∈ Ring)
rng2idlring.b	⊢ 𝐵 = (Base‘𝑅)
rng2idlring.t	⊢ · = (._r‘𝑅)
rng2idlring.1	⊢ 1 = (1_r‘𝐽)
rngqiprngim.g	⊢ ∼ = (𝑅 ~_QG 𝐼)
rngqiprngim.q	⊢ 𝑄 = (𝑅 /_s ∼ )
rngqiprngim.c	⊢ 𝐶 = (Base‘𝑄)
rngqiprngim.p	⊢ 𝑃 = (𝑄 ×_s 𝐽)
rngqiprngim.f	⊢ 𝐹 = (𝑥 ∈ 𝐵 ↦ ⟨[𝑥] ∼ , ( 1 · 𝑥)⟩)

**Assertion**
Ref	Expression
rngqiprngim	⊢ (𝜑 → 𝐹 ∈ (𝑅 RngIso 𝑃))

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 rngqiprngim**
Step	Hyp	Ref	Expression
1		rng2idlring.r	. . 3 ⊢ (𝜑 → 𝑅 ∈ Rng)
2		rng2idlring.i	. . 3 ⊢ (𝜑 → 𝐼 ∈ (2Ideal‘𝑅))
3		rng2idlring.j	. . 3 ⊢ 𝐽 = (𝑅 ↾_s 𝐼)
4		rng2idlring.u	. . 3 ⊢ (𝜑 → 𝐽 ∈ Ring)
5		rng2idlring.b	. . 3 ⊢ 𝐵 = (Base‘𝑅)
6		rng2idlring.t	. . 3 ⊢ · = (._r‘𝑅)
7		rng2idlring.1	. . 3 ⊢ 1 = (1_r‘𝐽)
8		rngqiprngim.g	. . 3 ⊢ ∼ = (𝑅 ~_QG 𝐼)
9		rngqiprngim.q	. . 3 ⊢ 𝑄 = (𝑅 /_s ∼ )
10		rngqiprngim.c	. . 3 ⊢ 𝐶 = (Base‘𝑄)
11		rngqiprngim.p	. . 3 ⊢ 𝑃 = (𝑄 ×_s 𝐽)
12		rngqiprngim.f	. . 3 ⊢ 𝐹 = (𝑥 ∈ 𝐵 ↦ ⟨[𝑥] ∼ , ( 1 · 𝑥)⟩)
13	1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12	rngqiprngho 21301	. 2 ⊢ (𝜑 → 𝐹 ∈ (𝑅 RngHom 𝑃))
14	1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12	rngqiprngimf1 21298	. . . 4 ⊢ (𝜑 → 𝐹:𝐵–1-1→(𝐶 × 𝐼))
15	1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12	rngqiprngimfo 21299	. . . 4 ⊢ (𝜑 → 𝐹:𝐵–onto→(𝐶 × 𝐼))
16		df-f1o 6505	. . . 4 ⊢ (𝐹:𝐵–1-1-onto→(𝐶 × 𝐼) ↔ (𝐹:𝐵–1-1→(𝐶 × 𝐼) ∧ 𝐹:𝐵–onto→(𝐶 × 𝐼)))
17	14, 15, 16	sylanbrc 584	. . 3 ⊢ (𝜑 → 𝐹:𝐵–1-1-onto→(𝐶 × 𝐼))
18	1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11	rngqipbas 21293	. . . 4 ⊢ (𝜑 → (Base‘𝑃) = (𝐶 × 𝐼))
19	18	f1oeq3d 6777	. . 3 ⊢ (𝜑 → (𝐹:𝐵–1-1-onto→(Base‘𝑃) ↔ 𝐹:𝐵–1-1-onto→(𝐶 × 𝐼)))
20	17, 19	mpbird 257	. 2 ⊢ (𝜑 → 𝐹:𝐵–1-1-onto→(Base‘𝑃))
21	11	ovexi 7401	. . 3 ⊢ 𝑃 ∈ V
22		eqid 2736	. . . 4 ⊢ (Base‘𝑃) = (Base‘𝑃)
23	5, 22	isrngim2 20433	. . 3 ⊢ ((𝑅 ∈ Rng ∧ 𝑃 ∈ V) → (𝐹 ∈ (𝑅 RngIso 𝑃) ↔ (𝐹 ∈ (𝑅 RngHom 𝑃) ∧ 𝐹:𝐵–1-1-onto→(Base‘𝑃))))
24	1, 21, 23	sylancl 587	. 2 ⊢ (𝜑 → (𝐹 ∈ (𝑅 RngIso 𝑃) ↔ (𝐹 ∈ (𝑅 RngHom 𝑃) ∧ 𝐹:𝐵–1-1-onto→(Base‘𝑃))))
25	13, 20, 24	mpbir2and 714	1 ⊢ (𝜑 → 𝐹 ∈ (𝑅 RngIso 𝑃))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1542 ∈ wcel 2114 Vcvv 3429 ⟨cop 4573 ↦ cmpt 5166 × cxp 5629 –1-1→wf1 6495 –onto→wfo 6496 –1-1-onto→wf1o 6497 ‘cfv 6498 (class class class)co 7367 [cec 8641 Basecbs 17179 ↾_s cress 17200 ._rcmulr 17221 /_s cqus 17469 ×_s cxps 17470 ~_QG cqg 19098 Rngcrng 20133 1_rcur 20162 Ringcrg 20214 RngHom crnghm 20414 RngIso crngim 20415 2Idealc2idl 21247

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-rep 5212 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-cnex 11094 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115

This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 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 3062 df-rmo 3342 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4851 df-iun 4935 df-br 5086 df-opab 5148 df-mpt 5167 df-tr 5193 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6265 df-ord 6326 df-on 6327 df-lim 6328 df-suc 6329 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-om 7818 df-1st 7942 df-2nd 7943 df-tpos 8176 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-1o 8405 df-2o 8406 df-er 8643 df-ec 8645 df-qs 8649 df-map 8775 df-ixp 8846 df-en 8894 df-dom 8895 df-sdom 8896 df-fin 8897 df-sup 9355 df-inf 9356 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-nn 12175 df-2 12244 df-3 12245 df-4 12246 df-5 12247 df-6 12248 df-7 12249 df-8 12250 df-9 12251 df-n0 12438 df-z 12525 df-dec 12645 df-uz 12789 df-fz 13462 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 17472 df-qus 17473 df-xps 17474 df-mgm 18608 df-mgmhm 18660 df-sgrp 18687 df-mnd 18703 df-grp 18912 df-minusg 18913 df-sbg 18914 df-subg 19099 df-nsg 19100 df-eqg 19101 df-ghm 19188 df-cmn 19757 df-abl 19758 df-mgp 20122 df-rng 20134 df-ur 20163 df-ring 20216 df-oppr 20317 df-dvdsr 20337 df-unit 20338 df-invr 20368 df-rnghm 20416 df-rngim 20417 df-subrng 20523 df-lss 20927 df-sra 21168 df-rgmod 21169 df-lidl 21206 df-2idl 21248

This theorem is referenced by: rngringbdlem2 21305 rngqiprngu 21316

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