Theorem rngansg 20055

Description: Every additive subgroup of a non-unital ring is normal. (Contributed by AV, 25-Feb-2025.)

Assertion

Ref	Expression
rngansg	⊢ (𝑅 ∈ Rng → (NrmSGrp‘𝑅) = (SubGrp‘𝑅))

Proof of Theorem rngansg

Step	Hyp	Ref	Expression
1		rngabl 20040	. 2 ⊢ (𝑅 ∈ Rng → 𝑅 ∈ Abel)
2		ablnsg 19753	. 2 ⊢ (𝑅 ∈ Abel → (NrmSGrp‘𝑅) = (SubGrp‘𝑅))
3	1, 2	syl 17	1 ⊢ (𝑅 ∈ Rng → (NrmSGrp‘𝑅) = (SubGrp‘𝑅))

Syntax hints:   → wi 4   = wceq 1540   ∈ wcel 2109  ‘cfv 6499  SubGrpcsubg 19028  NrmSGrpcnsg 19029  Abelcabl 19687  Rngcrng 20037

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 2701  ax-sep 5246  ax-nul 5256  ax-pow 5315  ax-pr 5382

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 2533  df-eu 2562  df-clab 2708  df-cleq 2721  df-clel 2803  df-nfc 2878  df-ne 2926  df-ral 3045  df-rex 3054  df-rab 3403  df-v 3446  df-sbc 3751  df-dif 3914  df-un 3916  df-in 3918  df-ss 3928  df-nul 4293  df-if 4485  df-pw 4561  df-sn 4586  df-pr 4588  df-op 4592  df-uni 4868  df-br 5103  df-opab 5165  df-mpt 5184  df-id 5526  df-xp 5637  df-rel 5638  df-cnv 5639  df-co 5640  df-dm 5641  df-rn 5642  df-res 5643  df-ima 5644  df-iota 6452  df-fun 6501  df-fv 6507  df-ov 7372  df-subg 19031  df-nsg 19032  df-cmn 19688  df-abl 19689  df-rng 20038

This theorem is referenced by: (None)