| 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 20745. (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 17334 | . . 3 ⊢ (𝐴 ⊆ 𝐵 → 𝐴 = (Base‘𝑆)) |
| 4 | 3 | 3ad2ant3 1153 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 𝐴 = (Base‘𝑆)) |
| 5 | simp3 1156 | . . . 4 ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 𝐴 ⊆ 𝐵) | |
| 6 | 2 | fvexi 6896 | . . . 4 ⊢ 𝐵 ∈ V |
| 7 | ssexg 5288 | . . . 4 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ∈ V) → 𝐴 ∈ V) | |
| 8 | 5, 6, 7 | sylancl 598 | . . 3 ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 𝐴 ∈ V) |
| 9 | eqid 2762 | . . . 4 ⊢ (.r‘𝑅) = (.r‘𝑅) | |
| 10 | 1, 9 | ressmulr 17396 | . . 3 ⊢ (𝐴 ∈ V → (.r‘𝑅) = (.r‘𝑆)) |
| 11 | 8, 10 | syl 18 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (.r‘𝑅) = (.r‘𝑆)) |
| 12 | simp2 1155 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 1 ∈ 𝐴) | |
| 13 | simpl1 1210 | . . 3 ⊢ (((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) ∧ 𝑥 ∈ 𝐴) → 𝑅 ∈ Ring) | |
| 14 | 5 | sselda 3934 | . . 3 ⊢ (((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) ∧ 𝑥 ∈ 𝐴) → 𝑥 ∈ 𝐵) |
| 15 | ress1r.1 | . . . 4 ⊢ 1 = (1r‘𝑅) | |
| 16 | 2, 9, 15 | ringlidm 20411 | . . 3 ⊢ ((𝑅 ∈ Ring ∧ 𝑥 ∈ 𝐵) → ( 1 (.r‘𝑅)𝑥) = 𝑥) |
| 17 | 13, 14, 16 | syl2anc 596 | . 2 ⊢ (((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) ∧ 𝑥 ∈ 𝐴) → ( 1 (.r‘𝑅)𝑥) = 𝑥) |
| 18 | 2, 9, 15 | ringridm 20412 | . . 3 ⊢ ((𝑅 ∈ Ring ∧ 𝑥 ∈ 𝐵) → (𝑥(.r‘𝑅) 1 ) = 𝑥) |
| 19 | 13, 14, 18 | syl2anc 596 | . 2 ⊢ (((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) ∧ 𝑥 ∈ 𝐴) → (𝑥(.r‘𝑅) 1 ) = 𝑥) |
| 20 | 4, 11, 12, 17, 19 | ringurd 20325 | 1 ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 1 = (1r‘𝑆)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∧ w3a 1103 = wceq 1570 ∈ wcel 2145 Vcvv 3453 ⊆ wss 3902 ‘cfv 6537 (class class class)co 7416 Basecbs 17305 ↾s cress 17326 .rcmulr 17347 1rcur 20321 Ringcrg 20373 |
| 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 2215 ax-ext 2734 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7739 ax-cnex 11183 ax-resscn 11184 ax-1cn 11185 ax-icn 11186 ax-addcl 11187 ax-addrcl 11188 ax-mulcl 11189 ax-mulrcl 11190 ax-mulcom 11191 ax-addass 11192 ax-mulass 11193 ax-distr 11194 ax-i2m1 11195 ax-1ne0 11196 ax-1rid 11197 ax-rnegex 11198 ax-rrecex 11199 ax-cnre 11200 ax-pre-lttri 11201 ax-pre-lttrn 11202 ax-pre-ltadd 11203 ax-pre-mulgt0 11204 |
| 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 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-rmo 3367 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-iun 4956 df-br 5108 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5554 df-eprel 5559 df-po 5567 df-so 5568 df-fr 5612 df-we 5614 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 df-om 7866 df-2nd 7990 df-frecs 8283 df-wrecs 8314 df-recs 8363 df-rdg 8402 df-er 8699 df-en 8956 df-dom 8957 df-sdom 8958 df-pnf 11272 df-mnf 11273 df-xr 11274 df-ltxr 11275 df-le 11276 df-sub 11470 df-neg 11471 df-nn 12261 df-2 12330 df-3 12331 df-sets 17260 df-slot 17278 df-ndx 17290 df-base 17306 df-ress 17327 df-plusg 17359 df-mulr 17360 df-0g 17530 df-mgm 18734 df-sgrp 18823 df-mnd 18839 df-mgp 20275 df-ur 20322 df-ring 20375 |
| This theorem is used by: xrge0slmod 33775 ressply1evls1 33962 fldgenfldext 34165 fldextrspundgdvdslem 34177 fldextrspundgdvds 34178 ply1annnr 34200 rtelextdg2lem 34223 |
| Copyright terms: Public domain | W3C validator |