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| Mirrors > Home > ILE Home > Th. List > subrgrcl | 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 2238 | . . . 4 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
| 2 | eqid 2238 | . . . 4 ⊢ (1r‘𝑅) = (1r‘𝑅) | |
| 3 | 1, 2 | issubrg 14639 | . . 3 ⊢ (𝐴 ∈ (SubRing‘𝑅) ↔ ((𝑅 ∈ Ring ∧ (𝑅 ↾s 𝐴) ∈ Ring) ∧ (𝐴 ⊆ (Base‘𝑅) ∧ (1r‘𝑅) ∈ 𝐴))) |
| 4 | 3 | simplbi 274 | . 2 ⊢ (𝐴 ∈ (SubRing‘𝑅) → (𝑅 ∈ Ring ∧ (𝑅 ↾s 𝐴) ∈ Ring)) |
| 5 | 4 | simpld 112 | 1 ⊢ (𝐴 ∈ (SubRing‘𝑅) → 𝑅 ∈ Ring) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 104 ∈ wcel 2209 ⊆ wss 3220 ‘cfv 5380 (class class class)co 6088 Basecbs 13411 ↾s cress 13412 1rcur 14370 Ringcrg 14408 SubRingcsubrg 14635 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4251 ax-pow 4313 ax-pr 4348 ax-un 4580 ax-cnex 8277 ax-resscn 8278 ax-1re 8280 ax-addrcl 8283 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-br 4132 df-opab 4194 df-mpt 4195 df-id 4440 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-rn 4787 df-res 4788 df-ima 4789 df-iota 5340 df-fun 5382 df-fn 5383 df-fv 5388 df-ov 6091 df-inn 9315 df-ndx 13414 df-slot 13415 df-base 13417 df-subrg 14637 |
| This theorem is used by: subrgsubg 14645 subrg1 14649 subrgmcl 14651 subrgsubm 14652 subrgdvds 14653 subrguss 14654 subrginv 14655 subrgdv 14656 subrgunit 14657 subrgugrp 14658 subrgintm 14661 subsubrg 14663 resrhm2b 14667 subrgpropd 14671 sralmod 14897 ressascl 15149 |
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