| Mathbox for Thierry Arnoux |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > ress1r | Structured version Visualization version GIF version | ||
| Description: 1r is unaffected by restriction. This is a bit more generic than subrg1 20558. (Contributed by Thierry Arnoux, 6-Sep-2018.) |
| Ref | Expression |
|---|---|
| ress1r.s | ⊢ 𝑆 = (𝑅 ↾s 𝐴) |
| ress1r.b | ⊢ 𝐵 = (Base‘𝑅) |
| ress1r.1 | ⊢ 1 = (1r‘𝑅) |
| Ref | Expression |
|---|---|
| ress1r | ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 1 = (1r‘𝑆)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ress1r.s | . . . 4 ⊢ 𝑆 = (𝑅 ↾s 𝐴) | |
| 2 | ress1r.b | . . . 4 ⊢ 𝐵 = (Base‘𝑅) | |
| 3 | 1, 2 | ressbas2 17203 | . . 3 ⊢ (𝐴 ⊆ 𝐵 → 𝐴 = (Base‘𝑆)) |
| 4 | 3 | 3ad2ant3 1142 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 𝐴 = (Base‘𝑆)) |
| 5 | simp3 1145 | . . . 4 ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 𝐴 ⊆ 𝐵) | |
| 6 | 2 | fvexi 6845 | . . . 4 ⊢ 𝐵 ∈ V |
| 7 | ssexg 5254 | . . . 4 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ∈ V) → 𝐴 ∈ V) | |
| 8 | 5, 6, 7 | sylancl 593 | . . 3 ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 𝐴 ∈ V) |
| 9 | eqid 2741 | . . . 4 ⊢ (.r‘𝑅) = (.r‘𝑅) | |
| 10 | 1, 9 | ressmulr 17265 | . . 3 ⊢ (𝐴 ∈ V → (.r‘𝑅) = (.r‘𝑆)) |
| 11 | 8, 10 | syl 17 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (.r‘𝑅) = (.r‘𝑆)) |
| 12 | simp2 1144 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 1 ∈ 𝐴) | |
| 13 | simpl1 1199 | . . 3 ⊢ (((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) ∧ 𝑥 ∈ 𝐴) → 𝑅 ∈ Ring) | |
| 14 | 5 | sselda 3917 | . . 3 ⊢ (((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) ∧ 𝑥 ∈ 𝐴) → 𝑥 ∈ 𝐵) |
| 15 | ress1r.1 | . . . 4 ⊢ 1 = (1r‘𝑅) | |
| 16 | 2, 9, 15 | ringlidm 20245 | . . 3 ⊢ ((𝑅 ∈ Ring ∧ 𝑥 ∈ 𝐵) → ( 1 (.r‘𝑅)𝑥) = 𝑥) |
| 17 | 13, 14, 16 | syl2anc 591 | . 2 ⊢ (((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) ∧ 𝑥 ∈ 𝐴) → ( 1 (.r‘𝑅)𝑥) = 𝑥) |
| 18 | 2, 9, 15 | ringridm 20246 | . . 3 ⊢ ((𝑅 ∈ Ring ∧ 𝑥 ∈ 𝐵) → (𝑥(.r‘𝑅) 1 ) = 𝑥) |
| 19 | 13, 14, 18 | syl2anc 591 | . 2 ⊢ (((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) ∧ 𝑥 ∈ 𝐴) → (𝑥(.r‘𝑅) 1 ) = 𝑥) |
| 20 | 4, 11, 12, 17, 19 | ringurd 20161 | 1 ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 1 = (1r‘𝑆)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 397 ∧ w3a 1093 = wceq 1548 ∈ wcel 2121 Vcvv 3433 ⊆ wss 3885 ‘cfv 6489 (class class class)co 7360 Basecbs 17174 ↾s cress 17195 .rcmulr 17216 1rcur 20157 Ringcrg 20209 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-10 2154 ax-11 2170 ax-12 2191 ax-ext 2713 ax-sep 5221 ax-nul 5231 ax-pow 5297 ax-pr 5365 ax-un 7682 ax-cnex 11089 ax-resscn 11090 ax-1cn 11091 ax-icn 11092 ax-addcl 11093 ax-addrcl 11094 ax-mulcl 11095 ax-mulrcl 11096 ax-mulcom 11097 ax-addass 11098 ax-mulass 11099 ax-distr 11100 ax-i2m1 11101 ax-1ne0 11102 ax-1rid 11103 ax-rnegex 11104 ax-rrecex 11105 ax-cnre 11106 ax-pre-lttri 11107 ax-pre-lttrn 11108 ax-pre-ltadd 11109 ax-pre-mulgt0 11110 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3or 1094 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-nf 1792 df-sb 2075 df-mo 2545 df-eu 2575 df-clab 2720 df-cleq 2733 df-clel 2816 df-nfc 2890 df-ne 2937 df-nel 3041 df-ral 3056 df-rex 3066 df-rmo 3346 df-reu 3347 df-rab 3394 df-v 3435 df-sbc 3726 df-csb 3834 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-pss 3905 df-nul 4265 df-if 4458 df-pw 4534 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4842 df-iun 4926 df-br 5076 df-opab 5138 df-mpt 5157 df-tr 5183 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 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-om 7811 df-2nd 7936 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-er 8637 df-en 8888 df-dom 8889 df-sdom 8890 df-pnf 11176 df-mnf 11177 df-xr 11178 df-ltxr 11179 df-le 11180 df-sub 11374 df-neg 11375 df-nn 12170 df-2 12239 df-3 12240 df-sets 17129 df-slot 17147 df-ndx 17159 df-base 17175 df-ress 17196 df-plusg 17228 df-mulr 17229 df-0g 17399 df-mgm 18603 df-sgrp 18682 df-mnd 18698 df-mgp 20117 df-ur 20158 df-ring 20211 |
| This theorem is referenced by: xrge0slmod 33435 ressply1evls1 33660 fldgenfldext 33864 fldextrspundgdvdslem 33876 fldextrspundgdvds 33877 ply1annnr 33899 rtelextdg2lem 33922 |
| Copyright terms: Public domain | W3C validator |