Theorem hlhilsplus

Description: Scalar addition for the final constructed Hilbert space. (Contributed by NM, 22-Jun-2015) (Revised by Mario Carneiro, 28-Jun-2015)

	Ref	Expression
Hypotheses	hlhilslem.h	$$⊢H=\mathrm{LHyp}\left(K\right)$$
	hlhilslem.e	$$⊢E=\mathrm{EDRing}\left(K\right)\left(W\right)$$
	hlhilslem.u	$$⊢U=\mathrm{HLHil}\left(K\right)\left(W\right)$$
	hlhilslem.r	$$⊢R=\mathrm{Scalar}\left(U\right)$$
	hlhilslem.k	$$⊢\phi \to \left(K\in \mathrm{HL}\wedge W\in H\right)$$
	hlhilsplus.a	$$⊢\underset{\dot{}}{+}={+}_E$$
Assertion	hlhilsplus	$$⊢\phi \to \underset{\dot{}}{+}={+}_R$$

Proof

Step	Hyp	Ref	Expression
1		hlhilslem.h	$$⊢H=\mathrm{LHyp}\left(K\right)$$
2		hlhilslem.e	$$⊢E=\mathrm{EDRing}\left(K\right)\left(W\right)$$
3		hlhilslem.u	$$⊢U=\mathrm{HLHil}\left(K\right)\left(W\right)$$
4		hlhilslem.r	$$⊢R=\mathrm{Scalar}\left(U\right)$$
5		hlhilslem.k	$$⊢\phi \to \left(K\in \mathrm{HL}\wedge W\in H\right)$$
6		hlhilsplus.a	$$⊢\underset{\dot{}}{+}={+}_E$$
7		df-plusg	$$⊢{+}_{𝑔}=\mathrm{Slot}2$$
8		2nn	$$⊢2\in \mathbb{N}$$
9		2lt4	$$⊢2<4$$
10	1 2 3 4 5 7 8 9 6	hlhilslem	$$⊢\phi \to \underset{\dot{}}{+}={+}_R$$