Metamath Proof Explorer


Definition df-pws

Description: Define a structure power, which is just a structure product where all the factors are the same. (Contributed by Mario Carneiro, 11-Jan-2015)

Ref Expression
Assertion df-pws s = ( 𝑟 ∈ V , 𝑖 ∈ V ↦ ( ( Scalar ‘ 𝑟 ) Xs ( 𝑖 × { 𝑟 } ) ) )

Detailed syntax breakdown

Step Hyp Ref Expression
0 cpws s
1 vr 𝑟
2 cvv V
3 vi 𝑖
4 csca Scalar
5 1 cv 𝑟
6 5 4 cfv ( Scalar ‘ 𝑟 )
7 cprds Xs
8 3 cv 𝑖
9 5 csn { 𝑟 }
10 8 9 cxp ( 𝑖 × { 𝑟 } )
11 6 10 7 co ( ( Scalar ‘ 𝑟 ) Xs ( 𝑖 × { 𝑟 } ) )
12 1 3 2 2 11 cmpo ( 𝑟 ∈ V , 𝑖 ∈ V ↦ ( ( Scalar ‘ 𝑟 ) Xs ( 𝑖 × { 𝑟 } ) ) )
13 0 12 wceq s = ( 𝑟 ∈ V , 𝑖 ∈ V ↦ ( ( Scalar ‘ 𝑟 ) Xs ( 𝑖 × { 𝑟 } ) ) )