| Mathbox for Thierry Arnoux |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > opprnsg | Structured version Visualization version GIF version | ||
| Description: Normal subgroups of the opposite ring are the same as the original normal subgroups. (Contributed by Thierry Arnoux, 13-Mar-2025.) |
| Ref | Expression |
|---|---|
| oppreqg.o | ⊢ 𝑂 = (oppr‘𝑅) |
| Ref | Expression |
|---|---|
| opprnsg | ⊢ (NrmSGrp‘𝑅) = (NrmSGrp‘𝑂) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | oppreqg.o | . . . . . 6 ⊢ 𝑂 = (oppr‘𝑅) | |
| 2 | 1 | opprsubg 20562 | . . . . 5 ⊢ (SubGrp‘𝑅) = (SubGrp‘𝑂) |
| 3 | 2 | eleq2i 2853 | . . . 4 ⊢ (𝑔 ∈ (SubGrp‘𝑅) ↔ 𝑔 ∈ (SubGrp‘𝑂)) |
| 4 | 3 | anbi1i 636 | . . 3 ⊢ ((𝑔 ∈ (SubGrp‘𝑅) ∧ ∀𝑥 ∈ (Base‘𝑅)∀𝑦 ∈ (Base‘𝑅)((𝑥(+g‘𝑅)𝑦) ∈ 𝑔 → (𝑦(+g‘𝑅)𝑥) ∈ 𝑔)) ↔ (𝑔 ∈ (SubGrp‘𝑂) ∧ ∀𝑥 ∈ (Base‘𝑅)∀𝑦 ∈ (Base‘𝑅)((𝑥(+g‘𝑅)𝑦) ∈ 𝑔 → (𝑦(+g‘𝑅)𝑥) ∈ 𝑔))) |
| 5 | eqid 2761 | . . . 4 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
| 6 | eqid 2761 | . . . 4 ⊢ (+g‘𝑅) = (+g‘𝑅) | |
| 7 | 5, 6 | isnsg2 19346 | . . 3 ⊢ (𝑔 ∈ (NrmSGrp‘𝑅) ↔ (𝑔 ∈ (SubGrp‘𝑅) ∧ ∀𝑥 ∈ (Base‘𝑅)∀𝑦 ∈ (Base‘𝑅)((𝑥(+g‘𝑅)𝑦) ∈ 𝑔 → (𝑦(+g‘𝑅)𝑥) ∈ 𝑔))) |
| 8 | 1, 5 | opprbas 20553 | . . . 4 ⊢ (Base‘𝑅) = (Base‘𝑂) |
| 9 | 1, 6 | oppradd 20554 | . . . 4 ⊢ (+g‘𝑅) = (+g‘𝑂) |
| 10 | 8, 9 | isnsg2 19346 | . . 3 ⊢ (𝑔 ∈ (NrmSGrp‘𝑂) ↔ (𝑔 ∈ (SubGrp‘𝑂) ∧ ∀𝑥 ∈ (Base‘𝑅)∀𝑦 ∈ (Base‘𝑅)((𝑥(+g‘𝑅)𝑦) ∈ 𝑔 → (𝑦(+g‘𝑅)𝑥) ∈ 𝑔))) |
| 11 | 4, 7, 10 | 3bitr4i 306 | . 2 ⊢ (𝑔 ∈ (NrmSGrp‘𝑅) ↔ 𝑔 ∈ (NrmSGrp‘𝑂)) |
| 12 | 11 | eqriv 2758 | 1 ⊢ (NrmSGrp‘𝑅) = (NrmSGrp‘𝑂) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ∀wral 3077 ‘cfv 6531 (class class class)co 7412 Basecbs 17367 +gcplusg 17408 SubGrpcsubg 19310 NrmSGrpcnsg 19311 opprcoppr 20546 |
| 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 2213 ax-ext 2733 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7740 ax-cnex 11237 ax-resscn 11238 ax-1cn 11239 ax-icn 11240 ax-addcl 11241 ax-addrcl 11242 ax-mulcl 11243 ax-mulrcl 11244 ax-mulcom 11245 ax-addass 11246 ax-mulass 11247 ax-distr 11248 ax-i2m1 11249 ax-1ne0 11250 ax-1rid 11251 ax-rnegex 11252 ax-rrecex 11253 ax-cnre 11254 ax-pre-lttri 11255 ax-pre-lttrn 11256 ax-pre-ltadd 11257 ax-pre-mulgt0 11258 |
| 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 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6297 df-ord 6358 df-on 6359 df-lim 6360 df-suc 6361 df-iota 6487 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7867 df-2nd 7991 df-tpos 8227 df-frecs 8283 df-wrecs 8314 df-recs 8363 df-rdg 8402 df-er 8701 df-en 8958 df-dom 8959 df-sdom 8960 df-pnf 11326 df-mnf 11327 df-xr 11328 df-ltxr 11329 df-le 11330 df-sub 11524 df-neg 11525 df-nn 12317 df-2 12386 df-3 12387 df-sets 17322 df-slot 17340 df-ndx 17352 df-base 17368 df-ress 17389 df-plusg 17421 df-mulr 17422 df-0g 17592 df-mgm 18796 df-sgrp 18888 df-mnd 18904 df-grp 19127 df-subg 19313 df-nsg 19314 df-oppr 20547 |
| This theorem is used by: opprqusplusg 33995 |
| Copyright terms: Public domain | W3C validator |