Mathbox for Alexander van der Vekens |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > rnglz | Structured version Visualization version GIF version |
Description: The zero of a nonunital ring is a left-absorbing element. (Contributed by AV, 17-Apr-2020.) |
Ref | Expression |
---|---|
rngcl.b | ⊢ 𝐵 = (Base‘𝑅) |
rngcl.t | ⊢ · = (.r‘𝑅) |
rnglz.z | ⊢ 0 = (0g‘𝑅) |
Ref | Expression |
---|---|
rnglz | ⊢ ((𝑅 ∈ Rng ∧ 𝑋 ∈ 𝐵) → ( 0 · 𝑋) = 0 ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rngabl 45323 | . . . . . . 7 ⊢ (𝑅 ∈ Rng → 𝑅 ∈ Abel) | |
2 | ablgrp 19306 | . . . . . . 7 ⊢ (𝑅 ∈ Abel → 𝑅 ∈ Grp) | |
3 | 1, 2 | syl 17 | . . . . . 6 ⊢ (𝑅 ∈ Rng → 𝑅 ∈ Grp) |
4 | rngcl.b | . . . . . . 7 ⊢ 𝐵 = (Base‘𝑅) | |
5 | rnglz.z | . . . . . . 7 ⊢ 0 = (0g‘𝑅) | |
6 | 4, 5 | grpidcl 18522 | . . . . . 6 ⊢ (𝑅 ∈ Grp → 0 ∈ 𝐵) |
7 | eqid 2738 | . . . . . . 7 ⊢ (+g‘𝑅) = (+g‘𝑅) | |
8 | 4, 7, 5 | grplid 18524 | . . . . . 6 ⊢ ((𝑅 ∈ Grp ∧ 0 ∈ 𝐵) → ( 0 (+g‘𝑅) 0 ) = 0 ) |
9 | 3, 6, 8 | syl2anc2 584 | . . . . 5 ⊢ (𝑅 ∈ Rng → ( 0 (+g‘𝑅) 0 ) = 0 ) |
10 | 9 | adantr 480 | . . . 4 ⊢ ((𝑅 ∈ Rng ∧ 𝑋 ∈ 𝐵) → ( 0 (+g‘𝑅) 0 ) = 0 ) |
11 | 10 | oveq1d 7270 | . . 3 ⊢ ((𝑅 ∈ Rng ∧ 𝑋 ∈ 𝐵) → (( 0 (+g‘𝑅) 0 ) · 𝑋) = ( 0 · 𝑋)) |
12 | simpl 482 | . . . 4 ⊢ ((𝑅 ∈ Rng ∧ 𝑋 ∈ 𝐵) → 𝑅 ∈ Rng) | |
13 | 3, 6 | syl 17 | . . . . . . 7 ⊢ (𝑅 ∈ Rng → 0 ∈ 𝐵) |
14 | 13, 13 | jca 511 | . . . . . 6 ⊢ (𝑅 ∈ Rng → ( 0 ∈ 𝐵 ∧ 0 ∈ 𝐵)) |
15 | 14 | anim1i 614 | . . . . 5 ⊢ ((𝑅 ∈ Rng ∧ 𝑋 ∈ 𝐵) → (( 0 ∈ 𝐵 ∧ 0 ∈ 𝐵) ∧ 𝑋 ∈ 𝐵)) |
16 | df-3an 1087 | . . . . 5 ⊢ (( 0 ∈ 𝐵 ∧ 0 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ↔ (( 0 ∈ 𝐵 ∧ 0 ∈ 𝐵) ∧ 𝑋 ∈ 𝐵)) | |
17 | 15, 16 | sylibr 233 | . . . 4 ⊢ ((𝑅 ∈ Rng ∧ 𝑋 ∈ 𝐵) → ( 0 ∈ 𝐵 ∧ 0 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵)) |
18 | rngcl.t | . . . . 5 ⊢ · = (.r‘𝑅) | |
19 | 4, 7, 18 | rngdir 45328 | . . . 4 ⊢ ((𝑅 ∈ Rng ∧ ( 0 ∈ 𝐵 ∧ 0 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵)) → (( 0 (+g‘𝑅) 0 ) · 𝑋) = (( 0 · 𝑋)(+g‘𝑅)( 0 · 𝑋))) |
20 | 12, 17, 19 | syl2anc 583 | . . 3 ⊢ ((𝑅 ∈ Rng ∧ 𝑋 ∈ 𝐵) → (( 0 (+g‘𝑅) 0 ) · 𝑋) = (( 0 · 𝑋)(+g‘𝑅)( 0 · 𝑋))) |
21 | 3 | adantr 480 | . . . 4 ⊢ ((𝑅 ∈ Rng ∧ 𝑋 ∈ 𝐵) → 𝑅 ∈ Grp) |
22 | 13 | adantr 480 | . . . . 5 ⊢ ((𝑅 ∈ Rng ∧ 𝑋 ∈ 𝐵) → 0 ∈ 𝐵) |
23 | simpr 484 | . . . . 5 ⊢ ((𝑅 ∈ Rng ∧ 𝑋 ∈ 𝐵) → 𝑋 ∈ 𝐵) | |
24 | 4, 18 | rngcl 45329 | . . . . 5 ⊢ ((𝑅 ∈ Rng ∧ 0 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → ( 0 · 𝑋) ∈ 𝐵) |
25 | 12, 22, 23, 24 | syl3anc 1369 | . . . 4 ⊢ ((𝑅 ∈ Rng ∧ 𝑋 ∈ 𝐵) → ( 0 · 𝑋) ∈ 𝐵) |
26 | 4, 7, 5 | grprid 18525 | . . . . 5 ⊢ ((𝑅 ∈ Grp ∧ ( 0 · 𝑋) ∈ 𝐵) → (( 0 · 𝑋)(+g‘𝑅) 0 ) = ( 0 · 𝑋)) |
27 | 26 | eqcomd 2744 | . . . 4 ⊢ ((𝑅 ∈ Grp ∧ ( 0 · 𝑋) ∈ 𝐵) → ( 0 · 𝑋) = (( 0 · 𝑋)(+g‘𝑅) 0 )) |
28 | 21, 25, 27 | syl2anc 583 | . . 3 ⊢ ((𝑅 ∈ Rng ∧ 𝑋 ∈ 𝐵) → ( 0 · 𝑋) = (( 0 · 𝑋)(+g‘𝑅) 0 )) |
29 | 11, 20, 28 | 3eqtr3d 2786 | . 2 ⊢ ((𝑅 ∈ Rng ∧ 𝑋 ∈ 𝐵) → (( 0 · 𝑋)(+g‘𝑅)( 0 · 𝑋)) = (( 0 · 𝑋)(+g‘𝑅) 0 )) |
30 | 4, 7 | grplcan 18552 | . . 3 ⊢ ((𝑅 ∈ Grp ∧ (( 0 · 𝑋) ∈ 𝐵 ∧ 0 ∈ 𝐵 ∧ ( 0 · 𝑋) ∈ 𝐵)) → ((( 0 · 𝑋)(+g‘𝑅)( 0 · 𝑋)) = (( 0 · 𝑋)(+g‘𝑅) 0 ) ↔ ( 0 · 𝑋) = 0 )) |
31 | 21, 25, 22, 25, 30 | syl13anc 1370 | . 2 ⊢ ((𝑅 ∈ Rng ∧ 𝑋 ∈ 𝐵) → ((( 0 · 𝑋)(+g‘𝑅)( 0 · 𝑋)) = (( 0 · 𝑋)(+g‘𝑅) 0 ) ↔ ( 0 · 𝑋) = 0 )) |
32 | 29, 31 | mpbid 231 | 1 ⊢ ((𝑅 ∈ Rng ∧ 𝑋 ∈ 𝐵) → ( 0 · 𝑋) = 0 ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 ∧ w3a 1085 = wceq 1539 ∈ wcel 2108 ‘cfv 6418 (class class class)co 7255 Basecbs 16840 +gcplusg 16888 .rcmulr 16889 0gc0g 17067 Grpcgrp 18492 Abelcabl 19302 Rngcrng 45320 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-nn 11904 df-2 11966 df-sets 16793 df-slot 16811 df-ndx 16823 df-base 16841 df-plusg 16901 df-0g 17069 df-mgm 18241 df-sgrp 18290 df-mnd 18301 df-grp 18495 df-minusg 18496 df-abl 19304 df-mgp 19636 df-rng0 45321 |
This theorem is referenced by: zrrnghm 45363 |
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