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| Mirrors > Home > MPE Home > Th. List > pzriprnglem14 | Structured version Visualization version GIF version | ||
| Description: Lemma 14 for pzriprng 21711: 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 12651 | . . . . 5 ⊢ 1 ∈ ℤ | |
| 2 | sneq 4597 | . . . . . . . . 9 ⊢ (𝑦 = 1 → {𝑦} = {1}) | |
| 3 | 2 | xpeq2d 5689 | . . . . . . . 8 ⊢ (𝑦 = 1 → (ℤ × {𝑦}) = (ℤ × {1})) |
| 4 | 3 | sneqd 4599 | . . . . . . 7 ⊢ (𝑦 = 1 → {(ℤ × {𝑦})} = {(ℤ × {1})}) |
| 5 | 4 | eleq2d 2848 | . . . . . 6 ⊢ (𝑦 = 1 → ((ℤ × {1}) ∈ {(ℤ × {𝑦})} ↔ (ℤ × {1}) ∈ {(ℤ × {1})})) |
| 6 | id 23 | . . . . . 6 ⊢ (1 ∈ ℤ → 1 ∈ ℤ) | |
| 7 | zex 12627 | . . . . . . . . 9 ⊢ ℤ ∈ V | |
| 8 | snex 5408 | . . . . . . . . 9 ⊢ {1} ∈ V | |
| 9 | 7, 8 | xpex 7755 | . . . . . . . 8 ⊢ (ℤ × {1}) ∈ V |
| 10 | 9 | snid 4626 | . . . . . . 7 ⊢ (ℤ × {1}) ∈ {(ℤ × {1})} |
| 11 | 10 | a1i 11 | . . . . . 6 ⊢ (1 ∈ ℤ → (ℤ × {1}) ∈ {(ℤ × {1})}) |
| 12 | 5, 6, 11 | rspcedvdw 3582 | . . . . 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 21705 | . . . . . 6 ⊢ (Base‘𝑄) = ∪ 𝑦 ∈ ℤ {(ℤ × {𝑦})} |
| 21 | 20 | eleq2i 2854 | . . . . 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 21706 | . . . 4 ⊢ (𝑥 ∈ (Base‘𝑄) → (((ℤ × {1})(.r‘𝑄)𝑥) = 𝑥 ∧ (𝑥(.r‘𝑄)(ℤ × {1})) = 𝑥)) |
| 26 | 25 | rgen 3080 | . . 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 21707 | . . 3 ⊢ 𝑄 ∈ Ring |
| 29 | eqid 2762 | . . . 4 ⊢ (Base‘𝑄) = (Base‘𝑄) | |
| 30 | eqid 2762 | . . . 4 ⊢ (.r‘𝑄) = (.r‘𝑄) | |
| 31 | eqid 2762 | . . . 4 ⊢ (1r‘𝑄) = (1r‘𝑄) | |
| 32 | 29, 30, 31 | isringid 20413 | . . 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 2145 ∀wral 3078 ∃wrex 3088 {csn 4587 ∪ ciun 4954 × cxp 5657 ‘cfv 6537 (class class class)co 7416 0cc0 11127 1c1 11128 ℤcz 12618 Basecbs 17305 ↾s cress 17326 .rcmulr 17347 /s cqus 17595 ×s cxps 17596 ~QG cqg 19246 1rcur 20321 Ringcrg 20373 ℤringczring 21660 |
| 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 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2734 ax-rep 5236 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7739 ax-cnex 11183 ax-resscn 11184 ax-1cn 11185 ax-icn 11186 ax-addcl 11187 ax-addrcl 11188 ax-mulcl 11189 ax-mulrcl 11190 ax-mulcom 11191 ax-addass 11192 ax-mulass 11193 ax-distr 11194 ax-i2m1 11195 ax-1ne0 11196 ax-1rid 11197 ax-rnegex 11198 ax-rrecex 11199 ax-cnre 11200 ax-pre-lttri 11201 ax-pre-lttrn 11202 ax-pre-ltadd 11203 ax-pre-mulgt0 11204 ax-addf 11206 ax-mulf 11207 |
| 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 2100 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-rmo 3367 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-tp 4592 df-op 4594 df-uni 4871 df-iun 4956 df-br 5108 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5554 df-eprel 5559 df-po 5567 df-so 5568 df-fr 5612 df-we 5614 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 df-om 7866 df-1st 7989 df-2nd 7990 df-tpos 8227 df-frecs 8283 df-wrecs 8314 df-recs 8363 df-rdg 8402 df-1o 8458 df-2o 8459 df-er 8699 df-ec 8701 df-qs 8705 df-map 8831 df-ixp 8908 df-en 8956 df-dom 8957 df-sdom 8958 df-fin 8959 df-sup 9415 df-inf 9416 df-pnf 11272 df-mnf 11273 df-xr 11274 df-ltxr 11275 df-le 11276 df-sub 11470 df-neg 11471 df-nn 12261 df-2 12330 df-3 12331 df-4 12332 df-5 12333 df-6 12334 df-7 12335 df-8 12336 df-9 12337 df-n0 12532 df-z 12619 df-dec 12740 df-uz 12891 df-fz 13564 df-struct 17243 df-sets 17260 df-slot 17278 df-ndx 17290 df-base 17306 df-ress 17327 df-plusg 17359 df-mulr 17360 df-starv 17361 df-sca 17362 df-vsca 17363 df-ip 17364 df-tset 17365 df-ple 17366 df-ds 17368 df-unif 17369 df-hom 17370 df-cco 17371 df-0g 17530 df-prds 17536 df-imas 17598 df-qus 17599 df-xps 17600 df-mgm 18734 df-sgrp 18823 df-mnd 18839 df-grp 19061 df-minusg 19062 df-sbg 19063 df-subg 19247 df-nsg 19248 df-eqg 19249 df-cmn 19910 df-abl 19911 df-mgp 20275 df-rng 20289 df-ur 20322 df-ring 20375 df-cring 20376 df-oppr 20479 df-subrng 20709 df-subrg 20733 df-lss 21117 df-sra 21358 df-rgmod 21359 df-lidl 21396 df-2idl 21453 df-cnfld 21587 df-zring 21661 |
| This theorem is used by: pzriprng1ALT 21710 |
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