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| Mirrors > Home > MPE Home > Th. List > pzriprnglem14 | Structured version Visualization version GIF version | ||
| Description: Lemma 14 for pzriprng 21477: The ring unity of the ring 𝑄. (Contributed by AV, 23-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) |
| pzriprng.g | ⊢ ∼ = (𝑅 ~QG 𝐼) |
| pzriprng.q | ⊢ 𝑄 = (𝑅 /s ∼ ) |
| Ref | Expression |
|---|---|
| pzriprnglem14 | ⊢ (1r‘𝑄) = (ℤ × {1}) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1z 12557 | . . . . 5 ⊢ 1 ∈ ℤ | |
| 2 | sneq 4578 | . . . . . . . . 9 ⊢ (𝑦 = 1 → {𝑦} = {1}) | |
| 3 | 2 | xpeq2d 5661 | . . . . . . . 8 ⊢ (𝑦 = 1 → (ℤ × {𝑦}) = (ℤ × {1})) |
| 4 | 3 | sneqd 4580 | . . . . . . 7 ⊢ (𝑦 = 1 → {(ℤ × {𝑦})} = {(ℤ × {1})}) |
| 5 | 4 | eleq2d 2823 | . . . . . 6 ⊢ (𝑦 = 1 → ((ℤ × {1}) ∈ {(ℤ × {𝑦})} ↔ (ℤ × {1}) ∈ {(ℤ × {1})})) |
| 6 | id 22 | . . . . . 6 ⊢ (1 ∈ ℤ → 1 ∈ ℤ) | |
| 7 | zex 12533 | . . . . . . . . 9 ⊢ ℤ ∈ V | |
| 8 | snex 5382 | . . . . . . . . 9 ⊢ {1} ∈ V | |
| 9 | 7, 8 | xpex 7707 | . . . . . . . 8 ⊢ (ℤ × {1}) ∈ V |
| 10 | 9 | snid 4607 | . . . . . . 7 ⊢ (ℤ × {1}) ∈ {(ℤ × {1})} |
| 11 | 10 | a1i 11 | . . . . . 6 ⊢ (1 ∈ ℤ → (ℤ × {1}) ∈ {(ℤ × {1})}) |
| 12 | 5, 6, 11 | rspcedvdw 3568 | . . . . 5 ⊢ (1 ∈ ℤ → ∃𝑦 ∈ ℤ (ℤ × {1}) ∈ {(ℤ × {𝑦})}) |
| 13 | 1, 12 | ax-mp 5 | . . . 4 ⊢ ∃𝑦 ∈ ℤ (ℤ × {1}) ∈ {(ℤ × {𝑦})} |
| 14 | pzriprng.r | . . . . . . 7 ⊢ 𝑅 = (ℤring ×s ℤring) | |
| 15 | pzriprng.i | . . . . . . 7 ⊢ 𝐼 = (ℤ × {0}) | |
| 16 | pzriprng.j | . . . . . . 7 ⊢ 𝐽 = (𝑅 ↾s 𝐼) | |
| 17 | pzriprng.1 | . . . . . . 7 ⊢ 1 = (1r‘𝐽) | |
| 18 | pzriprng.g | . . . . . . 7 ⊢ ∼ = (𝑅 ~QG 𝐼) | |
| 19 | pzriprng.q | . . . . . . 7 ⊢ 𝑄 = (𝑅 /s ∼ ) | |
| 20 | 14, 15, 16, 17, 18, 19 | pzriprnglem11 21471 | . . . . . 6 ⊢ (Base‘𝑄) = ∪ 𝑦 ∈ ℤ {(ℤ × {𝑦})} |
| 21 | 20 | eleq2i 2829 | . . . . 5 ⊢ ((ℤ × {1}) ∈ (Base‘𝑄) ↔ (ℤ × {1}) ∈ ∪ 𝑦 ∈ ℤ {(ℤ × {𝑦})}) |
| 22 | eliun 4938 | . . . . 5 ⊢ ((ℤ × {1}) ∈ ∪ 𝑦 ∈ ℤ {(ℤ × {𝑦})} ↔ ∃𝑦 ∈ ℤ (ℤ × {1}) ∈ {(ℤ × {𝑦})}) | |
| 23 | 21, 22 | bitri 275 | . . . 4 ⊢ ((ℤ × {1}) ∈ (Base‘𝑄) ↔ ∃𝑦 ∈ ℤ (ℤ × {1}) ∈ {(ℤ × {𝑦})}) |
| 24 | 13, 23 | mpbir 231 | . . 3 ⊢ (ℤ × {1}) ∈ (Base‘𝑄) |
| 25 | 14, 15, 16, 17, 18, 19 | pzriprnglem12 21472 | . . . 4 ⊢ (𝑥 ∈ (Base‘𝑄) → (((ℤ × {1})(.r‘𝑄)𝑥) = 𝑥 ∧ (𝑥(.r‘𝑄)(ℤ × {1})) = 𝑥)) |
| 26 | 25 | rgen 3054 | . . 3 ⊢ ∀𝑥 ∈ (Base‘𝑄)(((ℤ × {1})(.r‘𝑄)𝑥) = 𝑥 ∧ (𝑥(.r‘𝑄)(ℤ × {1})) = 𝑥) |
| 27 | 24, 26 | pm3.2i 470 | . 2 ⊢ ((ℤ × {1}) ∈ (Base‘𝑄) ∧ ∀𝑥 ∈ (Base‘𝑄)(((ℤ × {1})(.r‘𝑄)𝑥) = 𝑥 ∧ (𝑥(.r‘𝑄)(ℤ × {1})) = 𝑥)) |
| 28 | 14, 15, 16, 17, 18, 19 | pzriprnglem13 21473 | . . 3 ⊢ 𝑄 ∈ Ring |
| 29 | eqid 2737 | . . . 4 ⊢ (Base‘𝑄) = (Base‘𝑄) | |
| 30 | eqid 2737 | . . . 4 ⊢ (.r‘𝑄) = (.r‘𝑄) | |
| 31 | eqid 2737 | . . . 4 ⊢ (1r‘𝑄) = (1r‘𝑄) | |
| 32 | 29, 30, 31 | isringid 20252 | . . 3 ⊢ (𝑄 ∈ Ring → (((ℤ × {1}) ∈ (Base‘𝑄) ∧ ∀𝑥 ∈ (Base‘𝑄)(((ℤ × {1})(.r‘𝑄)𝑥) = 𝑥 ∧ (𝑥(.r‘𝑄)(ℤ × {1})) = 𝑥)) ↔ (1r‘𝑄) = (ℤ × {1}))) |
| 33 | 28, 32 | ax-mp 5 | . 2 ⊢ (((ℤ × {1}) ∈ (Base‘𝑄) ∧ ∀𝑥 ∈ (Base‘𝑄)(((ℤ × {1})(.r‘𝑄)𝑥) = 𝑥 ∧ (𝑥(.r‘𝑄)(ℤ × {1})) = 𝑥)) ↔ (1r‘𝑄) = (ℤ × {1})) |
| 34 | 27, 33 | mpbi 230 | 1 ⊢ (1r‘𝑄) = (ℤ × {1}) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ∀wral 3052 ∃wrex 3062 {csn 4568 ∪ ciun 4934 × cxp 5629 ‘cfv 6499 (class class class)co 7367 0cc0 11038 1c1 11039 ℤcz 12524 Basecbs 17179 ↾s cress 17200 .rcmulr 17221 /s cqus 17469 ×s cxps 17470 ~QG cqg 19098 1rcur 20162 Ringcrg 20214 ℤringczring 21426 |
| 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 2709 ax-rep 5213 ax-sep 5232 ax-nul 5242 ax-pow 5308 ax-pr 5376 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 ax-addf 11117 ax-mulf 11118 |
| 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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-tp 4573 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 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 6266 df-ord 6327 df-on 6328 df-lim 6329 df-suc 6330 df-iota 6455 df-fun 6501 df-fn 6502 df-f 6503 df-f1 6504 df-fo 6505 df-f1o 6506 df-fv 6507 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-starv 17235 df-sca 17236 df-vsca 17237 df-ip 17238 df-tset 17239 df-ple 17240 df-ds 17242 df-unif 17243 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-sgrp 18687 df-mnd 18703 df-grp 18912 df-minusg 18913 df-sbg 18914 df-subg 19099 df-nsg 19100 df-eqg 19101 df-cmn 19757 df-abl 19758 df-mgp 20122 df-rng 20134 df-ur 20163 df-ring 20216 df-cring 20217 df-oppr 20317 df-subrng 20523 df-subrg 20547 df-lss 20927 df-sra 21168 df-rgmod 21169 df-lidl 21206 df-2idl 21248 df-cnfld 21353 df-zring 21427 |
| This theorem is referenced by: pzriprng1ALT 21476 |
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