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Mirrors > Home > ILE Home > Th. List > subrngss | GIF version |
Description: A subring is a subset. (Contributed by AV, 14-Feb-2025.) |
Ref | Expression |
---|---|
subrngss.1 | ⊢ 𝐵 = (Base‘𝑅) |
Ref | Expression |
---|---|
subrngss | ⊢ (𝐴 ∈ (SubRng‘𝑅) → 𝐴 ⊆ 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | subrngss.1 | . . 3 ⊢ 𝐵 = (Base‘𝑅) | |
2 | 1 | issubrng 13571 | . 2 ⊢ (𝐴 ∈ (SubRng‘𝑅) ↔ (𝑅 ∈ Rng ∧ (𝑅 ↾s 𝐴) ∈ Rng ∧ 𝐴 ⊆ 𝐵)) |
3 | 2 | simp3bi 1016 | 1 ⊢ (𝐴 ∈ (SubRng‘𝑅) → 𝐴 ⊆ 𝐵) |
Colors of variables: wff set class |
Syntax hints: → wi 4 = wceq 1364 ∈ wcel 2160 ⊆ wss 3144 ‘cfv 5238 (class class class)co 5900 Basecbs 12523 ↾s cress 12524 Rngcrng 13311 SubRngcsubrng 13569 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-13 2162 ax-14 2163 ax-ext 2171 ax-sep 4139 ax-pow 4195 ax-pr 4230 ax-un 4454 ax-cnex 7937 ax-resscn 7938 ax-1re 7940 ax-addrcl 7943 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-eu 2041 df-mo 2042 df-clab 2176 df-cleq 2182 df-clel 2185 df-nfc 2321 df-ral 2473 df-rex 2474 df-rab 2477 df-v 2754 df-sbc 2978 df-csb 3073 df-un 3148 df-in 3150 df-ss 3157 df-pw 3595 df-sn 3616 df-pr 3617 df-op 3619 df-uni 3828 df-int 3863 df-br 4022 df-opab 4083 df-mpt 4084 df-id 4314 df-xp 4653 df-rel 4654 df-cnv 4655 df-co 4656 df-dm 4657 df-rn 4658 df-res 4659 df-ima 4660 df-iota 5199 df-fun 5240 df-fn 5241 df-fv 5246 df-ov 5903 df-inn 8955 df-ndx 12526 df-slot 12527 df-base 12529 df-subrng 13570 |
This theorem is referenced by: subrngsubg 13576 subsubrng 13586 |
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