Metamath Proof Explorer


Definition df-rgmod

Description: Any ring can be regarded as a left algebra over itself. The function ringLMod associates with any ring the left algebra consisting in the ring itself regarded as a left algebra over itself. It has an inner product which is simply the ring product. (Contributed by Stefan O'Rear, 6-Dec-2014)

Ref Expression
Assertion df-rgmod ringLMod = ( 𝑤 ∈ V ↦ ( ( subringAlg ‘ 𝑤 ) ‘ ( Base ‘ 𝑤 ) ) )

Detailed syntax breakdown

Step Hyp Ref Expression
0 crglmod ringLMod
1 vw 𝑤
2 cvv V
3 csra subringAlg
4 1 cv 𝑤
5 4 3 cfv ( subringAlg ‘ 𝑤 )
6 cbs Base
7 4 6 cfv ( Base ‘ 𝑤 )
8 7 5 cfv ( ( subringAlg ‘ 𝑤 ) ‘ ( Base ‘ 𝑤 ) )
9 1 2 8 cmpt ( 𝑤 ∈ V ↦ ( ( subringAlg ‘ 𝑤 ) ‘ ( Base ‘ 𝑤 ) ) )
10 0 9 wceq ringLMod = ( 𝑤 ∈ V ↦ ( ( subringAlg ‘ 𝑤 ) ‘ ( Base ‘ 𝑤 ) ) )