Definition df-shs 31910

Description: Define subspace sum in S_ℋ. See shsval 31914, shsval2i 31989, and shsval3i 31990 for its value. (Contributed by NM, 16-Oct-1999.) (New usage is discouraged.)

Assertion

Ref	Expression
df-shs	⊢ +ℋ = (𝑥 ∈ Sℋ , 𝑦 ∈ Sℋ ↦ ( +ℎ “ (𝑥 × 𝑦)))

Distinct variable group:   𝑥,𝑦

Detailed syntax breakdown of Definition df-shs

Step	Hyp	Ref	Expression
1		cph 31533	. 2 class +ℋ
2		vx	. . 3 setvar 𝑥
3		vy	. . 3 setvar 𝑦
4		csh 31530	. . 3 class Sℋ
5		cva 31522	. . . 4 class +ℎ
6	2	cv 1569	. . . . 5 class 𝑥
7	3	cv 1569	. . . . 5 class 𝑦
8	6, 7	cxp 5649	. . . 4 class (𝑥 × 𝑦)
9	5, 8	cima 5654	. . 3 class ( +ℎ “ (𝑥 × 𝑦))
10	2, 3, 4, 4, 9	cmpo 7422	. 2 class (𝑥 ∈ Sℋ , 𝑦 ∈ Sℋ ↦ ( +ℎ “ (𝑥 × 𝑦)))
11	1, 10	wceq 1570	1 wff +ℋ = (𝑥 ∈ Sℋ , 𝑦 ∈ Sℋ ↦ ( +ℎ “ (𝑥 × 𝑦)))

This definition is used by:  shsval  31914