Theorem lringnz 20305

Description: A local ring is a nonzero ring. (Contributed by Jim Kingdon, 20-Feb-2025.) (Revised by SN, 23-Feb-2025.)

Hypotheses

Ref	Expression
lringnz.1	⊢ 1 = (1r‘𝑅)
lringnz.2	⊢ 0 = (0g‘𝑅)

Assertion

Ref	Expression
lringnz	⊢ (𝑅 ∈ LRing → 1 ≠ 0 )

Proof of Theorem lringnz

Step	Hyp	Ref	Expression
1		lringnzr 20303	. 2 ⊢ (𝑅 ∈ LRing → 𝑅 ∈ NzRing)
2		lringnz.1	. . 3 ⊢ 1 = (1r‘𝑅)
3		lringnz.2	. . 3 ⊢ 0 = (0g‘𝑅)
4	2, 3	nzrnz 20286	. 2 ⊢ (𝑅 ∈ NzRing → 1 ≠ 0 )
5	1, 4	syl 17	1 ⊢ (𝑅 ∈ LRing → 1 ≠ 0 )

Syntax hints:   → wi 4   = wceq 1541   ∈ wcel 2106   ≠ wne 2940  ‘cfv 6540  0_gc0g 17381  1_rcur 19998  NzRingcnzr 20283  LRingclring 20300

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-ext 2703

This theorem depends on definitions:  df-bi 206  df-an 397  df-or 846  df-3an 1089  df-tru 1544  df-fal 1554  df-ex 1782  df-sb 2068  df-clab 2710  df-cleq 2724  df-clel 2810  df-ne 2941  df-rab 3433  df-v 3476  df-dif 3950  df-un 3952  df-in 3954  df-ss 3964  df-nul 4322  df-if 4528  df-sn 4628  df-pr 4630  df-op 4634  df-uni 4908  df-br 5148  df-iota 6492  df-fv 6548  df-nzr 20284  df-lring 20301

This theorem is referenced by: (None)