Theorem hlhilsbase

Description: The scalar base set of the final constructed Hilbert space. (Contributed by NM, 22-Jun-2015) (Revised by Mario Carneiro, 28-Jun-2015)

	Ref	Expression
Hypotheses	hlhilslem.h	⊢ 𝐻 = ( LHyp ‘ 𝐾 )
	hlhilslem.e	⊢ 𝐸 = ( ( EDRing ‘ 𝐾 ) ‘ 𝑊 )
	hlhilslem.u	⊢ 𝑈 = ( ( HLHil ‘ 𝐾 ) ‘ 𝑊 )
	hlhilslem.r	⊢ 𝑅 = ( Scalar ‘ 𝑈 )
	hlhilslem.k	⊢ ( 𝜑 → ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) )
	hlhilsbase.c	⊢ 𝐶 = ( Base ‘ 𝐸 )
Assertion	hlhilsbase	⊢ ( 𝜑 → 𝐶 = ( Base ‘ 𝑅 ) )

Proof

Step	Hyp	Ref	Expression
1		hlhilslem.h	⊢ 𝐻 = ( LHyp ‘ 𝐾 )
2		hlhilslem.e	⊢ 𝐸 = ( ( EDRing ‘ 𝐾 ) ‘ 𝑊 )
3		hlhilslem.u	⊢ 𝑈 = ( ( HLHil ‘ 𝐾 ) ‘ 𝑊 )
4		hlhilslem.r	⊢ 𝑅 = ( Scalar ‘ 𝑈 )
5		hlhilslem.k	⊢ ( 𝜑 → ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) )
6		hlhilsbase.c	⊢ 𝐶 = ( Base ‘ 𝐸 )
7		df-base	⊢ Base = Slot 1
8		1nn	⊢ 1 ∈ ℕ
9		1lt4	⊢ 1 < 4
10	1 2 3 4 5 7 8 9 6	hlhilslem	⊢ ( 𝜑 → 𝐶 = ( Base ‘ 𝑅 ) )