Theorem bj-cmnssmndel 37974

Description: Commutative monoids are monoids (elemental version). This is a more direct proof of cmnmnd 19911, which relies on iscmn 19903. (Contributed by BJ, 9-Jun-2019.) (Proof modification is discouraged.)

Assertion

Ref	Expression
bj-cmnssmndel	⊢ (𝐴 ∈ CMnd → 𝐴 ∈ Mnd)

Proof of Theorem bj-cmnssmndel

Step	Hyp	Ref	Expression
1		bj-cmnssmnd 37973	. 2 ⊢ CMnd ⊆ Mnd
2	1	sseli 3934	1 ⊢ (𝐴 ∈ CMnd → 𝐴 ∈ Mnd)

This proof depends on syntax axioms:   → wi 4   ∈ wcel 2146  Mndcmnd 18824  CMndccmn 19894

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2148  ax-9 2156  ax-ext 2737

This proof depends on definitions:  df-bi 210  df-an 402  df-ex 1813  df-sb 2100  df-clab 2744  df-cleq 2757  df-clel 2840  df-rab 3419  df-ss 3923  df-cmn 19896

This theorem is used by: (None)