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| 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 20667. (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 17298 | . . 3 ⊢ (𝐴 ⊆ 𝐵 → 𝐴 = (Base‘𝑆)) |
| 4 | 3 | 3ad2ant3 1151 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 𝐴 = (Base‘𝑆)) |
| 5 | simp3 1154 | . . . 4 ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 𝐴 ⊆ 𝐵) | |
| 6 | 2 | fvexi 6896 | . . . 4 ⊢ 𝐵 ∈ V |
| 7 | ssexg 5294 | . . . 4 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ∈ V) → 𝐴 ∈ V) | |
| 8 | 5, 6, 7 | sylancl 597 | . . 3 ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 𝐴 ∈ V) |
| 9 | eqid 2769 | . . . 4 ⊢ (.r‘𝑅) = (.r‘𝑅) | |
| 10 | 1, 9 | ressmulr 17360 | . . 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 1153 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 1 ∈ 𝐴) | |
| 13 | simpl1 1208 | . . 3 ⊢ (((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) ∧ 𝑥 ∈ 𝐴) → 𝑅 ∈ Ring) | |
| 14 | 5 | sselda 3943 | . . 3 ⊢ (((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) ∧ 𝑥 ∈ 𝐴) → 𝑥 ∈ 𝐵) |
| 15 | ress1r.1 | . . . 4 ⊢ 1 = (1r‘𝑅) | |
| 16 | 2, 9, 15 | ringlidm 20352 | . . 3 ⊢ ((𝑅 ∈ Ring ∧ 𝑥 ∈ 𝐵) → ( 1 (.r‘𝑅)𝑥) = 𝑥) |
| 17 | 13, 14, 16 | syl2anc 595 | . 2 ⊢ (((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) ∧ 𝑥 ∈ 𝐴) → ( 1 (.r‘𝑅)𝑥) = 𝑥) |
| 18 | 2, 9, 15 | ringridm 20353 | . . 3 ⊢ ((𝑅 ∈ Ring ∧ 𝑥 ∈ 𝐵) → (𝑥(.r‘𝑅) 1 ) = 𝑥) |
| 19 | 13, 14, 18 | syl2anc 595 | . 2 ⊢ (((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) ∧ 𝑥 ∈ 𝐴) → (𝑥(.r‘𝑅) 1 ) = 𝑥) |
| 20 | 4, 11, 12, 17, 19 | ringurd 20267 | 1 ⊢ ((𝑅 ∈ Ring ∧ 1 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 1 = (1r‘𝑆)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 ∧ w3a 1101 = wceq 1567 ∈ wcel 2149 Vcvv 3461 ⊆ wss 3911 ‘cfv 6537 (class class class)co 7411 Basecbs 17269 ↾s cress 17290 .rcmulr 17311 1rcur 20263 Ringcrg 20315 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5259 ax-nul 5271 ax-pow 5337 ax-pr 5405 ax-un 7733 ax-cnex 11156 ax-resscn 11157 ax-1cn 11158 ax-icn 11159 ax-addcl 11160 ax-addrcl 11161 ax-mulcl 11162 ax-mulrcl 11163 ax-mulcom 11164 ax-addass 11165 ax-mulass 11166 ax-distr 11167 ax-i2m1 11168 ax-1ne0 11169 ax-1rid 11170 ax-rnegex 11171 ax-rrecex 11172 ax-cnre 11173 ax-pre-lttri 11174 ax-pre-lttrn 11175 ax-pre-ltadd 11176 ax-pre-mulgt0 11177 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-nel 3071 df-ral 3086 df-rex 3096 df-rmo 3375 df-reu 3376 df-rab 3423 df-v 3463 df-sbc 3752 df-csb 3860 df-dif 3914 df-un 3916 df-in 3918 df-ss 3928 df-pss 3931 df-nul 4293 df-if 4491 df-pw 4567 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4875 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5557 df-eprel 5562 df-po 5570 df-so 5571 df-fr 5615 df-we 5617 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 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 7368 df-ov 7414 df-oprab 7415 df-mpo 7416 df-om 7863 df-2nd 7987 df-frecs 8278 df-wrecs 8309 df-recs 8358 df-rdg 8397 df-er 8694 df-en 8944 df-dom 8945 df-sdom 8946 df-pnf 11245 df-mnf 11246 df-xr 11247 df-ltxr 11248 df-le 11249 df-sub 11443 df-neg 11444 df-nn 12234 df-2 12303 df-3 12304 df-sets 17224 df-slot 17242 df-ndx 17254 df-base 17270 df-ress 17291 df-plusg 17323 df-mulr 17324 df-0g 17494 df-mgm 18698 df-sgrp 18777 df-mnd 18793 df-mgp 20217 df-ur 20264 df-ring 20317 |
| This theorem is referenced by: xrge0slmod 33611 ressply1evls1 33800 fldgenfldext 34003 fldextrspundgdvdslem 34015 fldextrspundgdvds 34016 ply1annnr 34038 rtelextdg2lem 34061 |
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