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| Mirrors > Home > MPE Home > Th. List > pzriprnglem9 | Structured version Visualization version GIF version | ||
| Description: Lemma 9 for pzriprng 21684: 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 12642 | . . . 4 ⊢ 1 ∈ ℤ | |
| 2 | c0ex 11218 | . . . . 5 ⊢ 0 ∈ V | |
| 3 | 2 | snid 4633 | . . . 4 ⊢ 0 ∈ {0} |
| 4 | pzriprng.i | . . . . . 6 ⊢ 𝐼 = (ℤ × {0}) | |
| 5 | 4 | eleq2i 2858 | . . . . 5 ⊢ (〈1, 0〉 ∈ 𝐼 ↔ 〈1, 0〉 ∈ (ℤ × {0})) |
| 6 | opelxp 5702 | . . . . 5 ⊢ (〈1, 0〉 ∈ (ℤ × {0}) ↔ (1 ∈ ℤ ∧ 0 ∈ {0})) | |
| 7 | 5, 6 | bitri 278 | . . . 4 ⊢ (〈1, 0〉 ∈ 𝐼 ↔ (1 ∈ ℤ ∧ 0 ∈ {0})) |
| 8 | 1, 3, 7 | mpbir2an 724 | . . 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 21673 | . . . 4 ⊢ (𝑥 ∈ 𝐼 → ((〈1, 0〉(.r‘𝐽)𝑥) = 𝑥 ∧ (𝑥(.r‘𝐽)〈1, 0〉) = 𝑥)) |
| 12 | 11 | rgen 3084 | . . 3 ⊢ ∀𝑥 ∈ 𝐼 ((〈1, 0〉(.r‘𝐽)𝑥) = 𝑥 ∧ (𝑥(.r‘𝐽)〈1, 0〉) = 𝑥) |
| 13 | 8, 12 | pm3.2i 476 | . 2 ⊢ (〈1, 0〉 ∈ 𝐼 ∧ ∀𝑥 ∈ 𝐼 ((〈1, 0〉(.r‘𝐽)𝑥) = 𝑥 ∧ (𝑥(.r‘𝐽)〈1, 0〉) = 𝑥)) |
| 14 | 9, 4, 10 | pzriprnglem7 21674 | . . 3 ⊢ 𝐽 ∈ Ring |
| 15 | 9, 4 | pzriprnglem5 21672 | . . . . 5 ⊢ 𝐼 ∈ (SubRng‘𝑅) |
| 16 | 10 | subrngbas 20690 | . . . . 5 ⊢ (𝐼 ∈ (SubRng‘𝑅) → 𝐼 = (Base‘𝐽)) |
| 17 | 15, 16 | ax-mp 5 | . . . 4 ⊢ 𝐼 = (Base‘𝐽) |
| 18 | eqid 2766 | . . . 4 ⊢ (.r‘𝐽) = (.r‘𝐽) | |
| 19 | pzriprng.1 | . . . 4 ⊢ 1 = (1r‘𝐽) | |
| 20 | 17, 18, 19 | isringid 20386 | . . 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 233 | 1 ⊢ 1 = 〈1, 0〉 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ∧ wa 401 = wceq 1570 ∈ wcel 2146 ∀wral 3082 {csn 4594 〈cop 4600 × cxp 5664 ‘cfv 6543 (class class class)co 7423 0cc0 11118 1c1 11119 ℤcz 12609 Basecbs 17294 ↾s cress 17315 .rcmulr 17336 ×s cxps 17585 1rcur 20294 Ringcrg 20346 SubRngcsubrng 20681 ℤringczring 21633 |
| 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 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2738 ax-rep 5243 ax-sep 5262 ax-nul 5274 ax-pow 5341 ax-pr 5409 ax-un 7745 ax-cnex 11174 ax-resscn 11175 ax-1cn 11176 ax-icn 11177 ax-addcl 11178 ax-addrcl 11179 ax-mulcl 11180 ax-mulrcl 11181 ax-mulcom 11182 ax-addass 11183 ax-mulass 11184 ax-distr 11185 ax-i2m1 11186 ax-1ne0 11187 ax-1rid 11188 ax-rnegex 11189 ax-rrecex 11190 ax-cnre 11191 ax-pre-lttri 11192 ax-pre-lttrn 11193 ax-pre-ltadd 11194 ax-pre-mulgt0 11195 ax-addf 11197 ax-mulf 11198 |
| 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 2570 df-eu 2600 df-clab 2745 df-cleq 2758 df-clel 2841 df-nfc 2915 df-ne 2962 df-nel 3068 df-ral 3083 df-rex 3093 df-rmo 3372 df-reu 3373 df-rab 3420 df-v 3460 df-sbc 3748 df-csb 3857 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-pss 3928 df-nul 4290 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-tp 4599 df-op 4601 df-uni 4878 df-iun 4963 df-br 5115 df-opab 5179 df-mpt 5198 df-tr 5224 df-id 5561 df-eprel 5566 df-po 5574 df-so 5575 df-fr 5619 df-we 5621 df-xp 5672 df-rel 5673 df-cnv 5674 df-co 5675 df-dm 5676 df-rn 5677 df-res 5678 df-ima 5679 df-pred 6309 df-ord 6370 df-on 6371 df-lim 6372 df-suc 6373 df-iota 6499 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7380 df-ov 7426 df-oprab 7427 df-mpo 7428 df-om 7872 df-1st 7995 df-2nd 7996 df-frecs 8287 df-wrecs 8318 df-recs 8367 df-rdg 8406 df-1o 8462 df-2o 8463 df-er 8703 df-map 8835 df-ixp 8905 df-en 8953 df-dom 8954 df-sdom 8955 df-fin 8956 df-sup 9412 df-inf 9413 df-pnf 11263 df-mnf 11264 df-xr 11265 df-ltxr 11266 df-le 11267 df-sub 11461 df-neg 11462 df-nn 12252 df-2 12321 df-3 12322 df-4 12323 df-5 12324 df-6 12325 df-7 12326 df-8 12327 df-9 12328 df-n0 12523 df-z 12610 df-dec 12730 df-uz 12881 df-fz 13554 df-struct 17232 df-sets 17249 df-slot 17267 df-ndx 17279 df-base 17295 df-ress 17316 df-plusg 17348 df-mulr 17349 df-starv 17350 df-sca 17351 df-vsca 17352 df-ip 17353 df-tset 17354 df-ple 17355 df-ds 17357 df-unif 17358 df-hom 17359 df-cco 17360 df-0g 17519 df-prds 17525 df-imas 17587 df-xps 17589 df-mgm 18723 df-sgrp 18806 df-mnd 18822 df-grp 19034 df-minusg 19035 df-subg 19220 df-cmn 19883 df-abl 19884 df-mgp 20248 df-rng 20262 df-ur 20295 df-ring 20348 df-cring 20349 df-subrng 20682 df-subrg 20706 df-cnfld 21560 df-zring 21634 |
| This theorem is used by: pzriprng1ALT 21683 |
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