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| Mirrors > Home > MPE Home > Th. List > pzriprnglem9 | Structured version Visualization version GIF version | ||
| Description: Lemma 9 for pzriprng 21808: The ring unity of the ring 𝐽. (Contributed by AV, 22-Mar-2025.) |
| Ref | Expression |
|---|---|
| pzriprng.r | ⊢ 𝑅 = (ℤring ×s ℤring) |
| pzriprng.i | ⊢ 𝐼 = (ℤ × {0}) |
| pzriprng.j | ⊢ 𝐽 = (𝑅 ↾s 𝐼) |
| pzriprng.1 | ⊢ 1 = (1r‘𝐽) |
| Ref | Expression |
|---|---|
| pzriprnglem9 | ⊢ 1 = 〈1, 0〉 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1z 12729 | . . . 4 ⊢ 1 ∈ ℤ | |
| 2 | c0ex 11303 | . . . . 5 ⊢ 0 ∈ V | |
| 3 | 2 | snid 4619 | . . . 4 ⊢ 0 ∈ {0} |
| 4 | pzriprng.i | . . . . . 6 ⊢ 𝐼 = (ℤ × {0}) | |
| 5 | 4 | eleq2i 2852 | . . . . 5 ⊢ (〈1, 0〉 ∈ 𝐼 ↔ 〈1, 0〉 ∈ (ℤ × {0})) |
| 6 | opelxp 5686 | . . . . 5 ⊢ (〈1, 0〉 ∈ (ℤ × {0}) ↔ (1 ∈ ℤ ∧ 0 ∈ {0})) | |
| 7 | 5, 6 | bitri 278 | . . . 4 ⊢ (〈1, 0〉 ∈ 𝐼 ↔ (1 ∈ ℤ ∧ 0 ∈ {0})) |
| 8 | 1, 3, 7 | mpbir2an 724 | . . 3 ⊢ 〈1, 0〉 ∈ 𝐼 |
| 9 | pzriprng.r | . . . . 5 ⊢ 𝑅 = (ℤring ×s ℤring) | |
| 10 | pzriprng.j | . . . . 5 ⊢ 𝐽 = (𝑅 ↾s 𝐼) | |
| 11 | 9, 4, 10 | pzriprnglem6 21797 | . . . 4 ⊢ (𝑥 ∈ 𝐼 → ((〈1, 0〉(.r‘𝐽)𝑥) = 𝑥 ∧ (𝑥(.r‘𝐽)〈1, 0〉) = 𝑥)) |
| 12 | 11 | rgen 3078 | . . 3 ⊢ ∀𝑥 ∈ 𝐼 ((〈1, 0〉(.r‘𝐽)𝑥) = 𝑥 ∧ (𝑥(.r‘𝐽)〈1, 0〉) = 𝑥) |
| 13 | 8, 12 | pm3.2i 476 | . 2 ⊢ (〈1, 0〉 ∈ 𝐼 ∧ ∀𝑥 ∈ 𝐼 ((〈1, 0〉(.r‘𝐽)𝑥) = 𝑥 ∧ (𝑥(.r‘𝐽)〈1, 0〉) = 𝑥)) |
| 14 | 9, 4, 10 | pzriprnglem7 21798 | . . 3 ⊢ 𝐽 ∈ Ring |
| 15 | 9, 4 | pzriprnglem5 21796 | . . . . 5 ⊢ 𝐼 ∈ (SubRng‘𝑅) |
| 16 | 10 | subrngbas 20811 | . . . . 5 ⊢ (𝐼 ∈ (SubRng‘𝑅) → 𝐼 = (Base‘𝐽)) |
| 17 | 15, 16 | ax-mp 5 | . . . 4 ⊢ 𝐼 = (Base‘𝐽) |
| 18 | eqid 2760 | . . . 4 ⊢ (.r‘𝐽) = (.r‘𝐽) | |
| 19 | pzriprng.1 | . . . 4 ⊢ 1 = (1r‘𝐽) | |
| 20 | 17, 18, 19 | isringid 20505 | . . 3 ⊢ (𝐽 ∈ Ring → ((〈1, 0〉 ∈ 𝐼 ∧ ∀𝑥 ∈ 𝐼 ((〈1, 0〉(.r‘𝐽)𝑥) = 𝑥 ∧ (𝑥(.r‘𝐽)〈1, 0〉) = 𝑥)) ↔ 1 = 〈1, 0〉)) |
| 21 | 14, 20 | ax-mp 5 | . 2 ⊢ ((〈1, 0〉 ∈ 𝐼 ∧ ∀𝑥 ∈ 𝐼 ((〈1, 0〉(.r‘𝐽)𝑥) = 𝑥 ∧ (𝑥(.r‘𝐽)〈1, 0〉) = 𝑥)) ↔ 1 = 〈1, 0〉) |
| 22 | 13, 21 | mpbi 233 | 1 ⊢ 1 = 〈1, 0〉 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ∧ wa 401 = wceq 1569 ∈ wcel 2144 ∀wral 3076 {csn 4584 〈cop 4834 × cxp 5648 ‘cfv 6538 (class class class)co 7420 0cc0 11203 1c1 11204 ℤcz 12696 Basecbs 17392 ↾s cress 17413 .rcmulr 17434 ×s cxps 17683 1rcur 20412 Ringcrg 20464 SubRngcsubrng 20802 ℤringczring 21757 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7751 ax-cnex 11259 ax-resscn 11260 ax-1cn 11261 ax-icn 11262 ax-addcl 11263 ax-addrcl 11264 ax-mulcl 11265 ax-mulrcl 11266 ax-mulcom 11267 ax-addass 11268 ax-mulass 11269 ax-distr 11270 ax-i2m1 11271 ax-1ne0 11272 ax-1rid 11273 ax-rnegex 11274 ax-rrecex 11275 ax-cnre 11276 ax-pre-lttri 11277 ax-pre-lttrn 11278 ax-pre-ltadd 11279 ax-pre-mulgt0 11280 ax-addf 11282 ax-mulf 11283 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7878 df-1st 8001 df-2nd 8002 df-frecs 8302 df-wrecs 8333 df-recs 8382 df-rdg 8421 df-1o 8479 df-2o 8480 df-er 8720 df-map 8852 df-ixp 8929 df-en 8977 df-dom 8978 df-sdom 8979 df-fin 8980 df-sup 9437 df-inf 9438 df-pnf 11348 df-mnf 11349 df-xr 11350 df-ltxr 11351 df-le 11352 df-sub 11546 df-neg 11547 df-nn 12339 df-2 12408 df-3 12409 df-4 12410 df-5 12411 df-6 12412 df-7 12413 df-8 12414 df-9 12415 df-n0 12610 df-z 12697 df-dec 12818 df-uz 12969 df-fz 13643 df-struct 17330 df-sets 17347 df-slot 17365 df-ndx 17377 df-base 17393 df-ress 17414 df-plusg 17446 df-mulr 17447 df-starv 17448 df-sca 17449 df-vsca 17450 df-ip 17451 df-tset 17452 df-ple 17453 df-ds 17455 df-unif 17456 df-hom 17457 df-cco 17458 df-0g 17617 df-prds 17623 df-imas 17685 df-xps 17687 df-mgm 18821 df-sgrp 18913 df-mnd 18929 df-grp 19152 df-minusg 19153 df-subg 19338 df-cmn 20001 df-abl 20002 df-mgp 20366 df-rng 20380 df-ur 20413 df-ring 20466 df-cring 20467 df-subrng 20803 df-subrg 20827 df-cnfld 21684 df-zring 21758 |
| This theorem is used by: pzriprng1ALT 21807 |
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