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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 20806 | . 2 ⊢ (𝐴 ∈ (SubDRing‘𝑅) ↔ (𝑅 ∈ DivRing ∧ 𝐴 ∈ (SubRing‘𝑅) ∧ (𝑅 ↾s 𝐴) ∈ DivRing)) | |
2 | 1 | simp1bi 1144 | 1 ⊢ (𝐴 ∈ (SubDRing‘𝑅) → 𝑅 ∈ DivRing) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2106 ‘cfv 6563 (class class class)co 7431 ↾s cress 17274 SubRingcsubrg 20586 DivRingcdr 20746 SubDRingcsdrg 20804 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1908 ax-6 1965 ax-7 2005 ax-8 2108 ax-9 2116 ax-10 2139 ax-11 2155 ax-12 2175 ax-ext 2706 ax-sep 5302 ax-nul 5312 ax-pr 5438 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1540 df-fal 1550 df-ex 1777 df-nf 1781 df-sb 2063 df-mo 2538 df-eu 2567 df-clab 2713 df-cleq 2727 df-clel 2814 df-nfc 2890 df-ne 2939 df-ral 3060 df-rex 3069 df-rab 3434 df-v 3480 df-dif 3966 df-un 3968 df-in 3970 df-ss 3980 df-nul 4340 df-if 4532 df-pw 4607 df-sn 4632 df-pr 4634 df-op 4638 df-uni 4913 df-br 5149 df-opab 5211 df-mpt 5232 df-id 5583 df-xp 5695 df-rel 5696 df-cnv 5697 df-co 5698 df-dm 5699 df-rn 5700 df-res 5701 df-ima 5702 df-iota 6516 df-fun 6565 df-fv 6571 df-ov 7434 df-sdrg 20805 |
This theorem is referenced by: imadrhmcl 20815 |
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