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| Mirrors > Home > MPE Home > Th. List > pzriprnglem14 | Structured version Visualization version GIF version | ||
| Description: Lemma 14 for pzriprng 21833: 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 12753 | . . . . 5 ⊢ 1 ∈ ℤ | |
| 2 | sneq 4594 | . . . . . . . . 9 ⊢ (𝑦 = 1 → {𝑦} = {1}) | |
| 3 | 2 | xpeq2d 5685 | . . . . . . . 8 ⊢ (𝑦 = 1 → (ℤ × {𝑦}) = (ℤ × {1})) |
| 4 | 3 | sneqd 4596 | . . . . . . 7 ⊢ (𝑦 = 1 → {(ℤ × {𝑦})} = {(ℤ × {1})}) |
| 5 | 4 | eleq2d 2850 | . . . . . 6 ⊢ (𝑦 = 1 → ((ℤ × {1}) ∈ {(ℤ × {𝑦})} ↔ (ℤ × {1}) ∈ {(ℤ × {1})})) |
| 6 | id 23 | . . . . . 6 ⊢ (1 ∈ ℤ → 1 ∈ ℤ) | |
| 7 | zex 12729 | . . . . . . . . 9 ⊢ ℤ ∈ V | |
| 8 | snex 5401 | . . . . . . . . 9 ⊢ {1} ∈ V | |
| 9 | 7, 8 | xpex 7791 | . . . . . . . 8 ⊢ (ℤ × {1}) ∈ V |
| 10 | 9 | snid 4623 | . . . . . . 7 ⊢ (ℤ × {1}) ∈ {(ℤ × {1})} |
| 11 | 10 | a1i 11 | . . . . . 6 ⊢ (1 ∈ ℤ → (ℤ × {1}) ∈ {(ℤ × {1})}) |
| 12 | 5, 6, 11 | rspcedvdw 3583 | . . . . 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 21827 | . . . . . 6 ⊢ (Base‘𝑄) = ∪ 𝑦 ∈ ℤ {(ℤ × {𝑦})} |
| 21 | 20 | eleq2i 2856 | . . . . 5 ⊢ ((ℤ × {1}) ∈ (Base‘𝑄) ↔ (ℤ × {1}) ∈ ∪ 𝑦 ∈ ℤ {(ℤ × {𝑦})}) |
| 22 | eliun 4958 | . . . . 5 ⊢ ((ℤ × {1}) ∈ ∪ 𝑦 ∈ ℤ {(ℤ × {𝑦})} ↔ ∃𝑦 ∈ ℤ (ℤ × {1}) ∈ {(ℤ × {𝑦})}) | |
| 23 | 21, 22 | bitri 278 | . . . 4 ⊢ ((ℤ × {1}) ∈ (Base‘𝑄) ↔ ∃𝑦 ∈ ℤ (ℤ × {1}) ∈ {(ℤ × {𝑦})}) |
| 24 | 13, 23 | mpbir 234 | . . 3 ⊢ (ℤ × {1}) ∈ (Base‘𝑄) |
| 25 | 14, 15, 16, 17, 18, 19 | pzriprnglem12 21828 | . . . 4 ⊢ (𝑥 ∈ (Base‘𝑄) → (((ℤ × {1})(.r‘𝑄)𝑥) = 𝑥 ∧ (𝑥(.r‘𝑄)(ℤ × {1})) = 𝑥)) |
| 26 | 25 | rgen 3082 | . . 3 ⊢ ∀𝑥 ∈ (Base‘𝑄)(((ℤ × {1})(.r‘𝑄)𝑥) = 𝑥 ∧ (𝑥(.r‘𝑄)(ℤ × {1})) = 𝑥) |
| 27 | 24, 26 | pm3.2i 476 | . 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 21829 | . . 3 ⊢ 𝑄 ∈ Ring |
| 29 | eqid 2763 | . . . 4 ⊢ (Base‘𝑄) = (Base‘𝑄) | |
| 30 | eqid 2763 | . . . 4 ⊢ (.r‘𝑄) = (.r‘𝑄) | |
| 31 | eqid 2763 | . . . 4 ⊢ (1r‘𝑄) = (1r‘𝑄) | |
| 32 | 29, 30, 31 | isringid 20530 | . . 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 233 | 1 ⊢ (1r‘𝑄) = (ℤ × {1}) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ∧ wa 401 = wceq 1570 ∈ wcel 2147 ∀wral 3080 ∃wrex 3090 {csn 4588 ∪ ciun 4954 × cxp 5653 ‘cfv 6558 (class class class)co 7443 0cc0 11227 1c1 11228 ℤcz 12720 Basecbs 17416 ↾s cress 17437 .rcmulr 17458 /s cqus 17706 ×s cxps 17707 ~QG cqg 19361 1rcur 20437 Ringcrg 20489 ℤringczring 21782 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5235 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7775 ax-cnex 11283 ax-resscn 11284 ax-1cn 11285 ax-icn 11286 ax-addcl 11287 ax-addrcl 11288 ax-mulcl 11289 ax-mulrcl 11290 ax-mulcom 11291 ax-addass 11292 ax-mulass 11293 ax-distr 11294 ax-i2m1 11295 ax-1ne0 11296 ax-1rid 11297 ax-rnegex 11298 ax-rrecex 11299 ax-cnre 11300 ax-pre-lttri 11301 ax-pre-lttrn 11302 ax-pre-ltadd 11303 ax-pre-mulgt0 11304 ax-addf 11306 ax-mulf 11307 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-tp 4593 df-op 4839 df-uni 4871 df-iun 4956 df-br 5107 df-opab 5171 df-mpt 5190 df-tr 5216 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6322 df-ord 6383 df-on 6384 df-lim 6385 df-suc 6386 df-iota 6512 df-fun 6560 df-fn 6561 df-f 6562 df-f1 6563 df-fo 6564 df-f1o 6565 df-fv 6566 df-riota 7400 df-ov 7446 df-oprab 7447 df-mpo 7448 df-om 7902 df-1st 8025 df-2nd 8026 df-tpos 8271 df-frecs 8327 df-wrecs 8358 df-recs 8407 df-rdg 8446 df-1o 8504 df-2o 8505 df-er 8745 df-ec 8747 df-qs 8751 df-map 8877 df-ixp 8954 df-en 9002 df-dom 9003 df-sdom 9004 df-fin 9005 df-sup 9461 df-inf 9462 df-pnf 11372 df-mnf 11373 df-xr 11374 df-ltxr 11375 df-le 11376 df-sub 11570 df-neg 11571 df-nn 12363 df-2 12432 df-3 12433 df-4 12434 df-5 12435 df-6 12436 df-7 12437 df-8 12438 df-9 12439 df-n0 12634 df-z 12721 df-dec 12842 df-uz 12993 df-fz 13667 df-struct 17354 df-sets 17371 df-slot 17389 df-ndx 17401 df-base 17417 df-ress 17438 df-plusg 17470 df-mulr 17471 df-starv 17472 df-sca 17473 df-vsca 17474 df-ip 17475 df-tset 17476 df-ple 17477 df-ds 17479 df-unif 17480 df-hom 17481 df-cco 17482 df-0g 17641 df-prds 17647 df-imas 17709 df-qus 17710 df-xps 17711 df-mgm 18845 df-sgrp 18937 df-mnd 18953 df-grp 19176 df-minusg 19177 df-sbg 19178 df-subg 19362 df-nsg 19363 df-eqg 19364 df-cmn 20026 df-abl 20027 df-mgp 20391 df-rng 20405 df-ur 20438 df-ring 20491 df-cring 20492 df-oppr 20597 df-subrng 20828 df-subrg 20852 df-lss 21237 df-sra 21478 df-rgmod 21479 df-lidl 21516 df-2idl 21573 df-cnfld 21709 df-zring 21783 |
| This theorem is used by: pzriprng1ALT 21832 |
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