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| Mirrors > Home > MPE Home > Th. List > pzriprnglem14 | Structured version Visualization version GIF version | ||
| Description: Lemma 14 for pzriprng 21518: 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 12587 | . . . . 5 ⊢ 1 ∈ ℤ | |
| 2 | sneq 4582 | . . . . . . . . 9 ⊢ (𝑦 = 1 → {𝑦} = {1}) | |
| 3 | 2 | xpeq2d 5666 | . . . . . . . 8 ⊢ (𝑦 = 1 → (ℤ × {𝑦}) = (ℤ × {1})) |
| 4 | 3 | sneqd 4584 | . . . . . . 7 ⊢ (𝑦 = 1 → {(ℤ × {𝑦})} = {(ℤ × {1})}) |
| 5 | 4 | eleq2d 2838 | . . . . . 6 ⊢ (𝑦 = 1 → ((ℤ × {1}) ∈ {(ℤ × {𝑦})} ↔ (ℤ × {1}) ∈ {(ℤ × {1})})) |
| 6 | id 22 | . . . . . 6 ⊢ (1 ∈ ℤ → 1 ∈ ℤ) | |
| 7 | zex 12563 | . . . . . . . . 9 ⊢ ℤ ∈ V | |
| 8 | snex 5386 | . . . . . . . . 9 ⊢ {1} ∈ V | |
| 9 | 7, 8 | xpex 7721 | . . . . . . . 8 ⊢ (ℤ × {1}) ∈ V |
| 10 | 9 | snid 4611 | . . . . . . 7 ⊢ (ℤ × {1}) ∈ {(ℤ × {1})} |
| 11 | 10 | a1i 11 | . . . . . 6 ⊢ (1 ∈ ℤ → (ℤ × {1}) ∈ {(ℤ × {1})}) |
| 12 | 5, 6, 11 | rspcedvdw 3575 | . . . . 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 21512 | . . . . . 6 ⊢ (Base‘𝑄) = ∪ 𝑦 ∈ ℤ {(ℤ × {𝑦})} |
| 21 | 20 | eleq2i 2844 | . . . . 5 ⊢ ((ℤ × {1}) ∈ (Base‘𝑄) ↔ (ℤ × {1}) ∈ ∪ 𝑦 ∈ ℤ {(ℤ × {𝑦})}) |
| 22 | eliun 4943 | . . . . 5 ⊢ ((ℤ × {1}) ∈ ∪ 𝑦 ∈ ℤ {(ℤ × {𝑦})} ↔ ∃𝑦 ∈ ℤ (ℤ × {1}) ∈ {(ℤ × {𝑦})}) | |
| 23 | 21, 22 | bitri 277 | . . . 4 ⊢ ((ℤ × {1}) ∈ (Base‘𝑄) ↔ ∃𝑦 ∈ ℤ (ℤ × {1}) ∈ {(ℤ × {𝑦})}) |
| 24 | 13, 23 | mpbir 233 | . . 3 ⊢ (ℤ × {1}) ∈ (Base‘𝑄) |
| 25 | 14, 15, 16, 17, 18, 19 | pzriprnglem12 21513 | . . . 4 ⊢ (𝑥 ∈ (Base‘𝑄) → (((ℤ × {1})(.r‘𝑄)𝑥) = 𝑥 ∧ (𝑥(.r‘𝑄)(ℤ × {1})) = 𝑥)) |
| 26 | 25 | rgen 3068 | . . 3 ⊢ ∀𝑥 ∈ (Base‘𝑄)(((ℤ × {1})(.r‘𝑄)𝑥) = 𝑥 ∧ (𝑥(.r‘𝑄)(ℤ × {1})) = 𝑥) |
| 27 | 24, 26 | pm3.2i 473 | . 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 21514 | . . 3 ⊢ 𝑄 ∈ Ring |
| 29 | eqid 2752 | . . . 4 ⊢ (Base‘𝑄) = (Base‘𝑄) | |
| 30 | eqid 2752 | . . . 4 ⊢ (.r‘𝑄) = (.r‘𝑄) | |
| 31 | eqid 2752 | . . . 4 ⊢ (1r‘𝑄) = (1r‘𝑄) | |
| 32 | 29, 30, 31 | isringid 20289 | . . 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 232 | 1 ⊢ (1r‘𝑄) = (ℤ × {1}) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 208 ∧ wa 398 = wceq 1550 ∈ wcel 2132 ∀wral 3066 ∃wrex 3076 {csn 4572 ∪ ciun 4939 × cxp 5634 ‘cfv 6506 (class class class)co 7381 0cc0 11059 1c1 11060 ℤcz 12554 Basecbs 17217 ↾s cress 17238 .rcmulr 17259 /s cqus 17507 ×s cxps 17508 ~QG cqg 19136 1rcur 20199 Ringcrg 20251 ℤringczring 21467 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1805 ax-4 1819 ax-5 1920 ax-6 1977 ax-7 2018 ax-8 2134 ax-9 2142 ax-10 2165 ax-11 2181 ax-12 2202 ax-ext 2724 ax-rep 5217 ax-sep 5236 ax-nul 5246 ax-pow 5312 ax-pr 5380 ax-un 7703 ax-cnex 11115 ax-resscn 11116 ax-1cn 11117 ax-icn 11118 ax-addcl 11119 ax-addrcl 11120 ax-mulcl 11121 ax-mulrcl 11122 ax-mulcom 11123 ax-addass 11124 ax-mulass 11125 ax-distr 11126 ax-i2m1 11127 ax-1ne0 11128 ax-1rid 11129 ax-rnegex 11130 ax-rrecex 11131 ax-cnre 11132 ax-pre-lttri 11133 ax-pre-lttrn 11134 ax-pre-ltadd 11135 ax-pre-mulgt0 11136 ax-addf 11138 ax-mulf 11139 |
| This theorem depends on definitions: df-bi 209 df-an 399 df-or 857 df-3or 1096 df-3an 1097 df-tru 1553 df-fal 1563 df-ex 1790 df-nf 1794 df-sb 2081 df-mo 2556 df-eu 2586 df-clab 2731 df-cleq 2744 df-clel 2827 df-nfc 2901 df-ne 2948 df-nel 3052 df-ral 3067 df-rex 3077 df-rmo 3357 df-reu 3358 df-rab 3405 df-v 3446 df-sbc 3736 df-csb 3844 df-dif 3898 df-un 3900 df-in 3902 df-ss 3912 df-pss 3915 df-nul 4277 df-if 4471 df-pw 4547 df-sn 4573 df-pr 4575 df-tp 4577 df-op 4579 df-uni 4856 df-iun 4941 df-br 5091 df-opab 5153 df-mpt 5172 df-tr 5198 df-id 5531 df-eprel 5536 df-po 5544 df-so 5545 df-fr 5589 df-we 5591 df-xp 5642 df-rel 5643 df-cnv 5644 df-co 5645 df-dm 5646 df-rn 5647 df-res 5648 df-ima 5649 df-pred 6273 df-ord 6334 df-on 6335 df-lim 6336 df-suc 6337 df-iota 6462 df-fun 6508 df-fn 6509 df-f 6510 df-f1 6511 df-fo 6512 df-f1o 6513 df-fv 6514 df-riota 7338 df-ov 7384 df-oprab 7385 df-mpo 7386 df-om 7832 df-1st 7955 df-2nd 7956 df-tpos 8190 df-frecs 8246 df-wrecs 8277 df-recs 8326 df-rdg 8365 df-1o 8421 df-2o 8422 df-er 8662 df-ec 8664 df-qs 8668 df-map 8794 df-ixp 8865 df-en 8913 df-dom 8914 df-sdom 8915 df-fin 8916 df-sup 9374 df-inf 9375 df-pnf 11204 df-mnf 11205 df-xr 11206 df-ltxr 11207 df-le 11208 df-sub 11402 df-neg 11403 df-nn 12197 df-2 12266 df-3 12267 df-4 12268 df-5 12269 df-6 12270 df-7 12271 df-8 12272 df-9 12273 df-n0 12468 df-z 12555 df-dec 12675 df-uz 12826 df-fz 13499 df-struct 17155 df-sets 17172 df-slot 17190 df-ndx 17202 df-base 17218 df-ress 17239 df-plusg 17271 df-mulr 17272 df-starv 17273 df-sca 17274 df-vsca 17275 df-ip 17276 df-tset 17277 df-ple 17278 df-ds 17280 df-unif 17281 df-hom 17282 df-cco 17283 df-0g 17442 df-prds 17448 df-imas 17510 df-qus 17511 df-xps 17512 df-mgm 18646 df-sgrp 18725 df-mnd 18741 df-grp 18950 df-minusg 18951 df-sbg 18952 df-subg 19137 df-nsg 19138 df-eqg 19139 df-cmn 19794 df-abl 19795 df-mgp 20159 df-rng 20171 df-ur 20200 df-ring 20253 df-cring 20254 df-oppr 20354 df-subrng 20564 df-subrg 20588 df-lss 20968 df-sra 21209 df-rgmod 21210 df-lidl 21247 df-2idl 21289 df-cnfld 21394 df-zring 21468 |
| This theorem is referenced by: pzriprng1ALT 21517 |
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