Theorem vcsm

Description: Functionality of th scalar product of a complex vector space. (Contributed by NM, 3-Nov-2006) (New usage is discouraged.)

	Ref	Expression
Hypotheses	vciOLD.1	⊢ 𝐺 = ( 1st ‘ 𝑊 )
	vciOLD.2	⊢ 𝑆 = ( 2nd ‘ 𝑊 )
	vciOLD.3	⊢ 𝑋 = ran 𝐺
Assertion	vcsm	⊢ ( 𝑊 ∈ CVecOLD → 𝑆 : ( ℂ × 𝑋 ) ⟶ 𝑋 )

Proof

Step	Hyp	Ref	Expression
1		vciOLD.1	⊢ 𝐺 = ( 1st ‘ 𝑊 )
2		vciOLD.2	⊢ 𝑆 = ( 2nd ‘ 𝑊 )
3		vciOLD.3	⊢ 𝑋 = ran 𝐺
4	1 2 3	vciOLD	⊢ ( 𝑊 ∈ CVecOLD → ( 𝐺 ∈ AbelOp ∧ 𝑆 : ( ℂ × 𝑋 ) ⟶ 𝑋 ∧ ∀ 𝑥 ∈ 𝑋 ( ( 1 𝑆 𝑥 ) = 𝑥 ∧ ∀ 𝑦 ∈ ℂ ( ∀ 𝑧 ∈ 𝑋 ( 𝑦 𝑆 ( 𝑥 𝐺 𝑧 ) ) = ( ( 𝑦 𝑆 𝑥 ) 𝐺 ( 𝑦 𝑆 𝑧 ) ) ∧ ∀ 𝑧 ∈ ℂ ( ( ( 𝑦 + 𝑧 ) 𝑆 𝑥 ) = ( ( 𝑦 𝑆 𝑥 ) 𝐺 ( 𝑧 𝑆 𝑥 ) ) ∧ ( ( 𝑦 · 𝑧 ) 𝑆 𝑥 ) = ( 𝑦 𝑆 ( 𝑧 𝑆 𝑥 ) ) ) ) ) ) )
5	4	simp2d	⊢ ( 𝑊 ∈ CVecOLD → 𝑆 : ( ℂ × 𝑋 ) ⟶ 𝑋 )