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| Mirrors > Home > MPE Home > Th. List > subrgmre | Structured version Visualization version GIF version | ||
| Description: The subrings of a ring are a Moore system. (Contributed by Stefan O'Rear, 9-Mar-2015.) |
| Ref | Expression |
|---|---|
| subrgmre.b | ⊢ 𝐵 = (Base‘𝑅) |
| Ref | Expression |
|---|---|
| subrgmre | ⊢ (𝑅 ∈ Ring → (SubRing‘𝑅) ∈ (Moore‘𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | subrgmre.b | . . . . . 6 ⊢ 𝐵 = (Base‘𝑅) | |
| 2 | 1 | subrgss 20875 | . . . . 5 ⊢ (𝑎 ∈ (SubRing‘𝑅) → 𝑎 ⊆ 𝐵) |
| 3 | velpw 4565 | . . . . 5 ⊢ (𝑎 ∈ 𝒫 𝐵 ↔ 𝑎 ⊆ 𝐵) | |
| 4 | 2, 3 | sylibr 237 | . . . 4 ⊢ (𝑎 ∈ (SubRing‘𝑅) → 𝑎 ∈ 𝒫 𝐵) |
| 5 | 4 | a1i 11 | . . 3 ⊢ (𝑅 ∈ Ring → (𝑎 ∈ (SubRing‘𝑅) → 𝑎 ∈ 𝒫 𝐵)) |
| 6 | 5 | ssrdv 3919 | . 2 ⊢ (𝑅 ∈ Ring → (SubRing‘𝑅) ⊆ 𝒫 𝐵) |
| 7 | 1 | subrgid 20876 | . 2 ⊢ (𝑅 ∈ Ring → 𝐵 ∈ (SubRing‘𝑅)) |
| 8 | subrgint 20898 | . . 3 ⊢ ((𝑎 ⊆ (SubRing‘𝑅) ∧ 𝑎 ≠ ∅) → ∩ 𝑎 ∈ (SubRing‘𝑅)) | |
| 9 | 8 | 3adant1 1148 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 𝑎 ⊆ (SubRing‘𝑅) ∧ 𝑎 ≠ ∅) → ∩ 𝑎 ∈ (SubRing‘𝑅)) |
| 10 | 6, 7, 9 | ismred 17822 | 1 ⊢ (𝑅 ∈ Ring → (SubRing‘𝑅) ∈ (Moore‘𝐵)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2147 ≠ wne 2959 ⊆ wss 3900 ∅c0 4281 𝒫 cpw 4560 ∩ cint 4912 ‘cfv 6566 Basecbs 17431 Moorecmre 17802 Ringcrg 20510 SubRingcsubrg 20872 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5255 ax-nul 5266 ax-pow 5334 ax-pr 5398 ax-un 7783 ax-cnex 11295 ax-resscn 11296 ax-1cn 11297 ax-icn 11298 ax-addcl 11299 ax-addrcl 11300 ax-mulcl 11301 ax-mulrcl 11302 ax-mulcom 11303 ax-addass 11304 ax-mulass 11305 ax-distr 11306 ax-i2m1 11307 ax-1ne0 11308 ax-1rid 11309 ax-rnegex 11310 ax-rrecex 11311 ax-cnre 11312 ax-pre-lttri 11313 ax-pre-lttrn 11314 ax-pre-ltadd 11315 ax-pre-mulgt0 11316 |
| 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 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4841 df-uni 4873 df-int 4913 df-iun 4958 df-br 5109 df-opab 5174 df-mpt 5193 df-tr 5219 df-id 5553 df-eprel 5558 df-po 5566 df-so 5567 df-fr 5611 df-we 5613 df-xp 5664 df-rel 5665 df-cnv 5666 df-co 5667 df-dm 5668 df-rn 5669 df-res 5670 df-ima 5671 df-pred 6330 df-ord 6391 df-on 6392 df-lim 6393 df-suc 6394 df-iota 6520 df-fun 6568 df-fn 6569 df-f 6570 df-f1 6571 df-fo 6572 df-f1o 6573 df-fv 6574 df-riota 7408 df-ov 7454 df-oprab 7455 df-mpo 7456 df-om 7912 df-2nd 8036 df-frecs 8337 df-wrecs 8368 df-recs 8417 df-rdg 8456 df-er 8755 df-en 9012 df-dom 9013 df-sdom 9014 df-pnf 11384 df-mnf 11385 df-xr 11386 df-ltxr 11387 df-le 11388 df-sub 11582 df-neg 11583 df-nn 12376 df-2 12445 df-3 12446 df-sets 17386 df-slot 17404 df-ndx 17416 df-base 17432 df-ress 17453 df-plusg 17486 df-mulr 17487 df-0g 17662 df-mre 17806 df-mgm 18866 df-sgrp 18958 df-mnd 18974 df-grp 19197 df-minusg 19198 df-subg 19383 df-cmn 20047 df-abl 20048 df-mgp 20412 df-rng 20426 df-ur 20459 df-ring 20512 df-subrng 20849 df-subrg 20873 |
| This theorem is used by: aspval2 22261 evlseu 22447 |
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