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| Mirrors > Home > ILE Home > Th. List > subrgbas | GIF version | ||
| Description: Base set of a subring structure. (Contributed by Stefan O'Rear, 27-Nov-2014.) |
| Ref | Expression |
|---|---|
| subrgbas.b | ⊢ 𝑆 = (𝑅 ↾s 𝐴) |
| Ref | Expression |
|---|---|
| subrgbas | ⊢ (𝐴 ∈ (SubRing‘𝑅) → 𝐴 = (Base‘𝑆)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | subrgsubg 14644 | . 2 ⊢ (𝐴 ∈ (SubRing‘𝑅) → 𝐴 ∈ (SubGrp‘𝑅)) | |
| 2 | subrgbas.b | . . 3 ⊢ 𝑆 = (𝑅 ↾s 𝐴) | |
| 3 | 2 | subgbas 14040 | . 2 ⊢ (𝐴 ∈ (SubGrp‘𝑅) → 𝐴 = (Base‘𝑆)) |
| 4 | 1, 3 | syl 14 | 1 ⊢ (𝐴 ∈ (SubRing‘𝑅) → 𝐴 = (Base‘𝑆)) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 = wceq 1402 ∈ wcel 2209 ‘cfv 5380 (class class class)co 6088 Basecbs 13410 ↾s cress 13411 SubGrpcsubg 14029 SubRingcsubrg 14634 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 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-setind 4686 ax-cnex 8276 ax-resscn 8277 ax-1re 8279 ax-addrcl 8282 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 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-ne 2421 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 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-oprab 6092 df-mpo 6093 df-inn 9314 df-2 9372 df-3 9373 df-ndx 13413 df-slot 13414 df-base 13416 df-sets 13417 df-iress 13418 df-plusg 13503 df-mulr 13504 df-subg 14032 df-ring 14409 df-subrg 14636 |
| This theorem is used by: subrg1 14648 subrgmcl 14650 subrgdvds 14652 subrguss 14653 subrginv 14654 subrgdv 14655 subrgunit 14656 subsubrg 14662 issubassa3 15121 |
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