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| Mirrors > Home > MPE Home > Th. List > subrgrcl | Structured version Visualization version GIF version | ||
| Description: Reverse closure for a subring predicate. (Contributed by Mario Carneiro, 3-Dec-2014.) |
| Ref | Expression |
|---|---|
| subrgrcl | ⊢ (𝐴 ∈ (SubRing‘𝑅) → 𝑅 ∈ Ring) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2766 | . . . 4 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
| 2 | eqid 2766 | . . . 4 ⊢ (1r‘𝑅) = (1r‘𝑅) | |
| 3 | 1, 2 | issubrg 20707 | . . 3 ⊢ (𝐴 ∈ (SubRing‘𝑅) ↔ ((𝑅 ∈ Ring ∧ (𝑅 ↾s 𝐴) ∈ Ring) ∧ (𝐴 ⊆ (Base‘𝑅) ∧ (1r‘𝑅) ∈ 𝐴))) |
| 4 | 3 | simplbi 502 | . 2 ⊢ (𝐴 ∈ (SubRing‘𝑅) → (𝑅 ∈ Ring ∧ (𝑅 ↾s 𝐴) ∈ Ring)) |
| 5 | 4 | simpld 500 | 1 ⊢ (𝐴 ∈ (SubRing‘𝑅) → 𝑅 ∈ Ring) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∈ wcel 2146 ⊆ wss 3908 ‘cfv 6543 (class class class)co 7423 Basecbs 17294 ↾s cress 17315 1rcur 20294 Ringcrg 20346 SubRingcsubrg 20705 |
| 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 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2738 ax-sep 5262 ax-nul 5274 ax-pow 5341 ax-pr 5409 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2570 df-eu 2600 df-clab 2745 df-cleq 2758 df-clel 2841 df-nfc 2915 df-ne 2962 df-ral 3083 df-rex 3093 df-rab 3420 df-v 3460 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-nul 4290 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4878 df-br 5115 df-opab 5179 df-mpt 5198 df-id 5561 df-xp 5672 df-rel 5673 df-cnv 5674 df-co 5675 df-dm 5676 df-rn 5677 df-res 5678 df-ima 5679 df-iota 6499 df-fun 6545 df-fv 6551 df-ov 7426 df-subrg 20706 |
| This theorem is used by: subrgsubg 20713 subrg1 20718 subrgsubm 20721 subrginv 20724 subrgunit 20726 subrgugrp 20727 opprsubrg 20729 subrgint 20731 subsubrg 20734 resrhm2b 20738 sralmod 21345 subrgpsr 22164 subrgmpl 22219 subrgmvr 22221 subrgmvrf 22222 subrgascl 22254 subrgasclcl 22255 asclply1subcl 22571 subrdom 33636 idlinsubrg 33770 ressply10g 33888 ressply1invg 33890 |
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