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| Mirrors > Home > MPE Home > Th. List > pzriprnglem9 | Structured version Visualization version GIF version | ||
| Description: Lemma 9 for pzriprng 21444: 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 12512 | . . . 4 ⊢ 1 ∈ ℤ | |
| 2 | c0ex 11116 | . . . . 5 ⊢ 0 ∈ V | |
| 3 | 2 | snid 4616 | . . . 4 ⊢ 0 ∈ {0} |
| 4 | pzriprng.i | . . . . . 6 ⊢ 𝐼 = (ℤ × {0}) | |
| 5 | 4 | eleq2i 2825 | . . . . 5 ⊢ (〈1, 0〉 ∈ 𝐼 ↔ 〈1, 0〉 ∈ (ℤ × {0})) |
| 6 | opelxp 5657 | . . . . 5 ⊢ (〈1, 0〉 ∈ (ℤ × {0}) ↔ (1 ∈ ℤ ∧ 0 ∈ {0})) | |
| 7 | 5, 6 | bitri 275 | . . . 4 ⊢ (〈1, 0〉 ∈ 𝐼 ↔ (1 ∈ ℤ ∧ 0 ∈ {0})) |
| 8 | 1, 3, 7 | mpbir2an 711 | . . 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 21433 | . . . 4 ⊢ (𝑥 ∈ 𝐼 → ((〈1, 0〉(.r‘𝐽)𝑥) = 𝑥 ∧ (𝑥(.r‘𝐽)〈1, 0〉) = 𝑥)) |
| 12 | 11 | rgen 3051 | . . 3 ⊢ ∀𝑥 ∈ 𝐼 ((〈1, 0〉(.r‘𝐽)𝑥) = 𝑥 ∧ (𝑥(.r‘𝐽)〈1, 0〉) = 𝑥) |
| 13 | 8, 12 | pm3.2i 470 | . 2 ⊢ (〈1, 0〉 ∈ 𝐼 ∧ ∀𝑥 ∈ 𝐼 ((〈1, 0〉(.r‘𝐽)𝑥) = 𝑥 ∧ (𝑥(.r‘𝐽)〈1, 0〉) = 𝑥)) |
| 14 | 9, 4, 10 | pzriprnglem7 21434 | . . 3 ⊢ 𝐽 ∈ Ring |
| 15 | 9, 4 | pzriprnglem5 21432 | . . . . 5 ⊢ 𝐼 ∈ (SubRng‘𝑅) |
| 16 | 10 | subrngbas 20479 | . . . . 5 ⊢ (𝐼 ∈ (SubRng‘𝑅) → 𝐼 = (Base‘𝐽)) |
| 17 | 15, 16 | ax-mp 5 | . . . 4 ⊢ 𝐼 = (Base‘𝐽) |
| 18 | eqid 2733 | . . . 4 ⊢ (.r‘𝐽) = (.r‘𝐽) | |
| 19 | pzriprng.1 | . . . 4 ⊢ 1 = (1r‘𝐽) | |
| 20 | 17, 18, 19 | isringid 20199 | . . 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 230 | 1 ⊢ 1 = 〈1, 0〉 |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∧ wa 395 = wceq 1541 ∈ wcel 2113 ∀wral 3049 {csn 4577 〈cop 4583 × cxp 5619 ‘cfv 6489 (class class class)co 7355 0cc0 11016 1c1 11017 ℤcz 12478 Basecbs 17130 ↾s cress 17151 .rcmulr 17172 ×s cxps 17420 1rcur 20109 Ringcrg 20161 SubRngcsubrng 20470 ℤringczring 21393 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2705 ax-rep 5221 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7677 ax-cnex 11072 ax-resscn 11073 ax-1cn 11074 ax-icn 11075 ax-addcl 11076 ax-addrcl 11077 ax-mulcl 11078 ax-mulrcl 11079 ax-mulcom 11080 ax-addass 11081 ax-mulass 11082 ax-distr 11083 ax-i2m1 11084 ax-1ne0 11085 ax-1rid 11086 ax-rnegex 11087 ax-rrecex 11088 ax-cnre 11089 ax-pre-lttri 11090 ax-pre-lttrn 11091 ax-pre-ltadd 11092 ax-pre-mulgt0 11093 ax-addf 11095 ax-mulf 11096 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2566 df-clab 2712 df-cleq 2725 df-clel 2808 df-nfc 2883 df-ne 2931 df-nel 3035 df-ral 3050 df-rex 3059 df-rmo 3348 df-reu 3349 df-rab 3398 df-v 3440 df-sbc 3739 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4285 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-tp 4582 df-op 4584 df-uni 4861 df-iun 4945 df-br 5096 df-opab 5158 df-mpt 5177 df-tr 5203 df-id 5516 df-eprel 5521 df-po 5529 df-so 5530 df-fr 5574 df-we 5576 df-xp 5627 df-rel 5628 df-cnv 5629 df-co 5630 df-dm 5631 df-rn 5632 df-res 5633 df-ima 5634 df-pred 6256 df-ord 6317 df-on 6318 df-lim 6319 df-suc 6320 df-iota 6445 df-fun 6491 df-fn 6492 df-f 6493 df-f1 6494 df-fo 6495 df-f1o 6496 df-fv 6497 df-riota 7312 df-ov 7358 df-oprab 7359 df-mpo 7360 df-om 7806 df-1st 7930 df-2nd 7931 df-frecs 8220 df-wrecs 8251 df-recs 8300 df-rdg 8338 df-1o 8394 df-2o 8395 df-er 8631 df-map 8761 df-ixp 8831 df-en 8879 df-dom 8880 df-sdom 8881 df-fin 8882 df-sup 9336 df-inf 9337 df-pnf 11158 df-mnf 11159 df-xr 11160 df-ltxr 11161 df-le 11162 df-sub 11356 df-neg 11357 df-nn 12136 df-2 12198 df-3 12199 df-4 12200 df-5 12201 df-6 12202 df-7 12203 df-8 12204 df-9 12205 df-n0 12392 df-z 12479 df-dec 12599 df-uz 12743 df-fz 13418 df-struct 17068 df-sets 17085 df-slot 17103 df-ndx 17115 df-base 17131 df-ress 17152 df-plusg 17184 df-mulr 17185 df-starv 17186 df-sca 17187 df-vsca 17188 df-ip 17189 df-tset 17190 df-ple 17191 df-ds 17193 df-unif 17194 df-hom 17195 df-cco 17196 df-0g 17355 df-prds 17361 df-imas 17422 df-xps 17424 df-mgm 18558 df-sgrp 18637 df-mnd 18653 df-grp 18859 df-minusg 18860 df-subg 19046 df-cmn 19704 df-abl 19705 df-mgp 20069 df-rng 20081 df-ur 20110 df-ring 20163 df-cring 20164 df-subrng 20471 df-subrg 20495 df-cnfld 21302 df-zring 21394 |
| This theorem is referenced by: pzriprng1ALT 21443 |
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