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| Mirrors > Home > MPE Home > Th. List > sdrgrcl | Structured version Visualization version GIF version | ||
| Description: Reverse closure for a sub-division-ring predicate. (Contributed by SN, 19-Feb-2025.) |
| Ref | Expression |
|---|---|
| sdrgrcl | ⊢ (𝐴 ∈ (SubDRing‘𝑅) → 𝑅 ∈ DivRing) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | issdrg 20704 | . 2 ⊢ (𝐴 ∈ (SubDRing‘𝑅) ↔ (𝑅 ∈ DivRing ∧ 𝐴 ∈ (SubRing‘𝑅) ∧ (𝑅 ↾s 𝐴) ∈ DivRing)) | |
| 2 | 1 | simp1bi 1145 | 1 ⊢ (𝐴 ∈ (SubDRing‘𝑅) → 𝑅 ∈ DivRing) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2109 ‘cfv 6514 (class class class)co 7390 ↾s cress 17207 SubRingcsubrg 20485 DivRingcdr 20645 SubDRingcsdrg 20702 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2702 ax-sep 5254 ax-nul 5264 ax-pr 5390 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2879 df-ne 2927 df-ral 3046 df-rex 3055 df-rab 3409 df-v 3452 df-dif 3920 df-un 3922 df-in 3924 df-ss 3934 df-nul 4300 df-if 4492 df-pw 4568 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4875 df-br 5111 df-opab 5173 df-mpt 5192 df-id 5536 df-xp 5647 df-rel 5648 df-cnv 5649 df-co 5650 df-dm 5651 df-rn 5652 df-res 5653 df-ima 5654 df-iota 6467 df-fun 6516 df-fv 6522 df-ov 7393 df-sdrg 20703 |
| This theorem is referenced by: imadrhmcl 20713 subsdrg 33255 |
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