Metamath Proof Explorer


Definition df-mulv

Description: Define the operation of scalar multiplication. (Contributed by Andrew Salmon, 27-Jan-2012)

Ref Expression
Assertion df-mulv .𝑣 = ( 𝑥 ∈ V , 𝑦 ∈ V ↦ ( 𝑣 ∈ ℝ ↦ ( 𝑥 · ( 𝑦 ‘ 𝑣 ) ) ) )

Detailed syntax breakdown

Step Hyp Ref Expression
0 ctimesr ⊢ .𝑣
1 vx ⊢ 𝑥
2 cvv ⊢ V
3 vy ⊢ 𝑦
4 vv ⊢ 𝑣
5 cr ⊢ ℝ
6 1 cv ⊢ 𝑥
7 cmul ⊢ ·
8 3 cv ⊢ 𝑦
9 4 cv ⊢ 𝑣
10 9 8 cfv ⊢ ( 𝑦 ‘ 𝑣 )
11 6 10 7 co ⊢ ( 𝑥 · ( 𝑦 ‘ 𝑣 ) )
12 4 5 11 cmpt ⊢ ( 𝑣 ∈ ℝ ↦ ( 𝑥 · ( 𝑦 ‘ 𝑣 ) ) )
13 1 3 2 2 12 cmpo ⊢ ( 𝑥 ∈ V , 𝑦 ∈ V ↦ ( 𝑣 ∈ ℝ ↦ ( 𝑥 · ( 𝑦 ‘ 𝑣 ) ) ) )
14 0 13 wceq ⊢ .𝑣 = ( 𝑥 ∈ V , 𝑦 ∈ V ↦ ( 𝑣 ∈ ℝ ↦ ( 𝑥 · ( 𝑦 ‘ 𝑣 ) ) ) )