Theorem ocvlss 20238

Description: The orthocomplement of a subset is a linear subspace of the pre-Hilbert space. (Contributed by Mario Carneiro, 13-Oct-2015.)

Hypotheses

Ref	Expression
ocvss.v	⊢ 𝑉 = (Base‘𝑊)
ocvss.o	⊢ ⊥ = (ocv‘𝑊)
ocvlss.l	⊢ 𝐿 = (LSubSp‘𝑊)

Assertion

Ref	Expression
ocvlss	⊢ ((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) → ( ⊥ ‘𝑆) ∈ 𝐿)

Proof of Theorem ocvlss

Dummy variables 𝑥 𝑟 𝑦 𝑧 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		ocvss.v	. . . 4 ⊢ 𝑉 = (Base‘𝑊)
2		ocvss.o	. . . 4 ⊢ ⊥ = (ocv‘𝑊)
3	1, 2	ocvss 20236	. . 3 ⊢ ( ⊥ ‘𝑆) ⊆ 𝑉
4	3	a1i 11	. 2 ⊢ ((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) → ( ⊥ ‘𝑆) ⊆ 𝑉)
5		simpr 479	. . . 4 ⊢ ((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) → 𝑆 ⊆ 𝑉)
6		phllmod 20197	. . . . . 6 ⊢ (𝑊 ∈ PreHil → 𝑊 ∈ LMod)
7	6	adantr 472	. . . . 5 ⊢ ((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) → 𝑊 ∈ LMod)
8		eqid 2760	. . . . . 6 ⊢ (0g‘𝑊) = (0g‘𝑊)
9	1, 8	lmod0vcl 19114	. . . . 5 ⊢ (𝑊 ∈ LMod → (0g‘𝑊) ∈ 𝑉)
10	7, 9	syl 17	. . . 4 ⊢ ((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) → (0g‘𝑊) ∈ 𝑉)
11		simpll 807	. . . . . 6 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) → 𝑊 ∈ PreHil)
12	5	sselda 3744	. . . . . 6 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ 𝑉)
13		eqid 2760	. . . . . . 7 ⊢ (Scalar‘𝑊) = (Scalar‘𝑊)
14		eqid 2760	. . . . . . 7 ⊢ (·𝑖‘𝑊) = (·𝑖‘𝑊)
15		eqid 2760	. . . . . . 7 ⊢ (0g‘(Scalar‘𝑊)) = (0g‘(Scalar‘𝑊))
16	13, 14, 1, 15, 8	ip0l 20203	. . . . . 6 ⊢ ((𝑊 ∈ PreHil ∧ 𝑥 ∈ 𝑉) → ((0g‘𝑊)(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊)))
17	11, 12, 16	syl2anc 696	. . . . 5 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) → ((0g‘𝑊)(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊)))
18	17	ralrimiva 3104	. . . 4 ⊢ ((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) → ∀𝑥 ∈ 𝑆 ((0g‘𝑊)(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊)))
19	1, 14, 13, 15, 2	elocv 20234	. . . 4 ⊢ ((0g‘𝑊) ∈ ( ⊥ ‘𝑆) ↔ (𝑆 ⊆ 𝑉 ∧ (0g‘𝑊) ∈ 𝑉 ∧ ∀𝑥 ∈ 𝑆 ((0g‘𝑊)(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊))))
20	5, 10, 18, 19	syl3anbrc 1429	. . 3 ⊢ ((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) → (0g‘𝑊) ∈ ( ⊥ ‘𝑆))
21		ne0i 4064	. . 3 ⊢ ((0g‘𝑊) ∈ ( ⊥ ‘𝑆) → ( ⊥ ‘𝑆) ≠ ∅)
22	20, 21	syl 17	. 2 ⊢ ((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) → ( ⊥ ‘𝑆) ≠ ∅)
23	5	adantr 472	. . . 4 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) → 𝑆 ⊆ 𝑉)
24	7	adantr 472	. . . . 5 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) → 𝑊 ∈ LMod)
25		simpr1 1234	. . . . . 6 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) → 𝑟 ∈ (Base‘(Scalar‘𝑊)))
26		simpr2 1236	. . . . . . 7 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) → 𝑦 ∈ ( ⊥ ‘𝑆))
27	3, 26	sseldi 3742	. . . . . 6 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) → 𝑦 ∈ 𝑉)
28		eqid 2760	. . . . . . 7 ⊢ ( ·𝑠 ‘𝑊) = ( ·𝑠 ‘𝑊)
29		eqid 2760	. . . . . . 7 ⊢ (Base‘(Scalar‘𝑊)) = (Base‘(Scalar‘𝑊))
30	1, 13, 28, 29	lmodvscl 19102	. . . . . 6 ⊢ ((𝑊 ∈ LMod ∧ 𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ 𝑉) → (𝑟( ·𝑠 ‘𝑊)𝑦) ∈ 𝑉)
31	24, 25, 27, 30	syl3anc 1477	. . . . 5 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) → (𝑟( ·𝑠 ‘𝑊)𝑦) ∈ 𝑉)
32		simpr3 1238	. . . . . 6 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) → 𝑧 ∈ ( ⊥ ‘𝑆))
33	3, 32	sseldi 3742	. . . . 5 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) → 𝑧 ∈ 𝑉)
34		eqid 2760	. . . . . 6 ⊢ (+g‘𝑊) = (+g‘𝑊)
35	1, 34	lmodvacl 19099	. . . . 5 ⊢ ((𝑊 ∈ LMod ∧ (𝑟( ·𝑠 ‘𝑊)𝑦) ∈ 𝑉 ∧ 𝑧 ∈ 𝑉) → ((𝑟( ·𝑠 ‘𝑊)𝑦)(+g‘𝑊)𝑧) ∈ 𝑉)
36	24, 31, 33, 35	syl3anc 1477	. . . 4 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) → ((𝑟( ·𝑠 ‘𝑊)𝑦)(+g‘𝑊)𝑧) ∈ 𝑉)
37	11	adantlr 753	. . . . . . 7 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → 𝑊 ∈ PreHil)
38	31	adantr 472	. . . . . . 7 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → (𝑟( ·𝑠 ‘𝑊)𝑦) ∈ 𝑉)
39	33	adantr 472	. . . . . . 7 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → 𝑧 ∈ 𝑉)
40	12	adantlr 753	. . . . . . 7 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ 𝑉)
41		eqid 2760	. . . . . . . 8 ⊢ (+g‘(Scalar‘𝑊)) = (+g‘(Scalar‘𝑊))
42	13, 14, 1, 34, 41	ipdir 20206	. . . . . . 7 ⊢ ((𝑊 ∈ PreHil ∧ ((𝑟( ·𝑠 ‘𝑊)𝑦) ∈ 𝑉 ∧ 𝑧 ∈ 𝑉 ∧ 𝑥 ∈ 𝑉)) → (((𝑟( ·𝑠 ‘𝑊)𝑦)(+g‘𝑊)𝑧)(·𝑖‘𝑊)𝑥) = (((𝑟( ·𝑠 ‘𝑊)𝑦)(·𝑖‘𝑊)𝑥)(+g‘(Scalar‘𝑊))(𝑧(·𝑖‘𝑊)𝑥)))
43	37, 38, 39, 40, 42	syl13anc 1479	. . . . . 6 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → (((𝑟( ·𝑠 ‘𝑊)𝑦)(+g‘𝑊)𝑧)(·𝑖‘𝑊)𝑥) = (((𝑟( ·𝑠 ‘𝑊)𝑦)(·𝑖‘𝑊)𝑥)(+g‘(Scalar‘𝑊))(𝑧(·𝑖‘𝑊)𝑥)))
44	25	adantr 472	. . . . . . . . 9 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → 𝑟 ∈ (Base‘(Scalar‘𝑊)))
45	27	adantr 472	. . . . . . . . 9 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → 𝑦 ∈ 𝑉)
46		eqid 2760	. . . . . . . . . 10 ⊢ (.r‘(Scalar‘𝑊)) = (.r‘(Scalar‘𝑊))
47	13, 14, 1, 29, 28, 46	ipass 20212	. . . . . . . . 9 ⊢ ((𝑊 ∈ PreHil ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ 𝑉 ∧ 𝑥 ∈ 𝑉)) → ((𝑟( ·𝑠 ‘𝑊)𝑦)(·𝑖‘𝑊)𝑥) = (𝑟(.r‘(Scalar‘𝑊))(𝑦(·𝑖‘𝑊)𝑥)))
48	37, 44, 45, 40, 47	syl13anc 1479	. . . . . . . 8 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → ((𝑟( ·𝑠 ‘𝑊)𝑦)(·𝑖‘𝑊)𝑥) = (𝑟(.r‘(Scalar‘𝑊))(𝑦(·𝑖‘𝑊)𝑥)))
49	1, 14, 13, 15, 2	ocvi 20235	. . . . . . . . . 10 ⊢ ((𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑥 ∈ 𝑆) → (𝑦(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊)))
50	26, 49	sylan 489	. . . . . . . . 9 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → (𝑦(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊)))
51	50	oveq2d 6830	. . . . . . . 8 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → (𝑟(.r‘(Scalar‘𝑊))(𝑦(·𝑖‘𝑊)𝑥)) = (𝑟(.r‘(Scalar‘𝑊))(0g‘(Scalar‘𝑊))))
52	24	adantr 472	. . . . . . . . . 10 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → 𝑊 ∈ LMod)
53	13	lmodring 19093	. . . . . . . . . 10 ⊢ (𝑊 ∈ LMod → (Scalar‘𝑊) ∈ Ring)
54	52, 53	syl 17	. . . . . . . . 9 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → (Scalar‘𝑊) ∈ Ring)
55	29, 46, 15	ringrz 18808	. . . . . . . . 9 ⊢ (((Scalar‘𝑊) ∈ Ring ∧ 𝑟 ∈ (Base‘(Scalar‘𝑊))) → (𝑟(.r‘(Scalar‘𝑊))(0g‘(Scalar‘𝑊))) = (0g‘(Scalar‘𝑊)))
56	54, 44, 55	syl2anc 696	. . . . . . . 8 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → (𝑟(.r‘(Scalar‘𝑊))(0g‘(Scalar‘𝑊))) = (0g‘(Scalar‘𝑊)))
57	48, 51, 56	3eqtrd 2798	. . . . . . 7 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → ((𝑟( ·𝑠 ‘𝑊)𝑦)(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊)))
58	1, 14, 13, 15, 2	ocvi 20235	. . . . . . . 8 ⊢ ((𝑧 ∈ ( ⊥ ‘𝑆) ∧ 𝑥 ∈ 𝑆) → (𝑧(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊)))
59	32, 58	sylan 489	. . . . . . 7 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → (𝑧(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊)))
60	57, 59	oveq12d 6832	. . . . . 6 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → (((𝑟( ·𝑠 ‘𝑊)𝑦)(·𝑖‘𝑊)𝑥)(+g‘(Scalar‘𝑊))(𝑧(·𝑖‘𝑊)𝑥)) = ((0g‘(Scalar‘𝑊))(+g‘(Scalar‘𝑊))(0g‘(Scalar‘𝑊))))
61	13	lmodfgrp 19094	. . . . . . 7 ⊢ (𝑊 ∈ LMod → (Scalar‘𝑊) ∈ Grp)
62	29, 15	grpidcl 17671	. . . . . . . 8 ⊢ ((Scalar‘𝑊) ∈ Grp → (0g‘(Scalar‘𝑊)) ∈ (Base‘(Scalar‘𝑊)))
63	29, 41, 15	grplid 17673	. . . . . . . 8 ⊢ (((Scalar‘𝑊) ∈ Grp ∧ (0g‘(Scalar‘𝑊)) ∈ (Base‘(Scalar‘𝑊))) → ((0g‘(Scalar‘𝑊))(+g‘(Scalar‘𝑊))(0g‘(Scalar‘𝑊))) = (0g‘(Scalar‘𝑊)))
64	62, 63	mpdan 705	. . . . . . 7 ⊢ ((Scalar‘𝑊) ∈ Grp → ((0g‘(Scalar‘𝑊))(+g‘(Scalar‘𝑊))(0g‘(Scalar‘𝑊))) = (0g‘(Scalar‘𝑊)))
65	52, 61, 64	3syl 18	. . . . . 6 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → ((0g‘(Scalar‘𝑊))(+g‘(Scalar‘𝑊))(0g‘(Scalar‘𝑊))) = (0g‘(Scalar‘𝑊)))
66	43, 60, 65	3eqtrd 2798	. . . . 5 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) ∧ 𝑥 ∈ 𝑆) → (((𝑟( ·𝑠 ‘𝑊)𝑦)(+g‘𝑊)𝑧)(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊)))
67	66	ralrimiva 3104	. . . 4 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) → ∀𝑥 ∈ 𝑆 (((𝑟( ·𝑠 ‘𝑊)𝑦)(+g‘𝑊)𝑧)(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊)))
68	1, 14, 13, 15, 2	elocv 20234	. . . 4 ⊢ (((𝑟( ·𝑠 ‘𝑊)𝑦)(+g‘𝑊)𝑧) ∈ ( ⊥ ‘𝑆) ↔ (𝑆 ⊆ 𝑉 ∧ ((𝑟( ·𝑠 ‘𝑊)𝑦)(+g‘𝑊)𝑧) ∈ 𝑉 ∧ ∀𝑥 ∈ 𝑆 (((𝑟( ·𝑠 ‘𝑊)𝑦)(+g‘𝑊)𝑧)(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊))))
69	23, 36, 67, 68	syl3anbrc 1429	. . 3 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ (𝑟 ∈ (Base‘(Scalar‘𝑊)) ∧ 𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑧 ∈ ( ⊥ ‘𝑆))) → ((𝑟( ·𝑠 ‘𝑊)𝑦)(+g‘𝑊)𝑧) ∈ ( ⊥ ‘𝑆))
70	69	ralrimivvva 3110	. 2 ⊢ ((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) → ∀𝑟 ∈ (Base‘(Scalar‘𝑊))∀𝑦 ∈ ( ⊥ ‘𝑆)∀𝑧 ∈ ( ⊥ ‘𝑆)((𝑟( ·𝑠 ‘𝑊)𝑦)(+g‘𝑊)𝑧) ∈ ( ⊥ ‘𝑆))
71		ocvlss.l	. . 3 ⊢ 𝐿 = (LSubSp‘𝑊)
72	13, 29, 1, 34, 28, 71	islss 19157	. 2 ⊢ (( ⊥ ‘𝑆) ∈ 𝐿 ↔ (( ⊥ ‘𝑆) ⊆ 𝑉 ∧ ( ⊥ ‘𝑆) ≠ ∅ ∧ ∀𝑟 ∈ (Base‘(Scalar‘𝑊))∀𝑦 ∈ ( ⊥ ‘𝑆)∀𝑧 ∈ ( ⊥ ‘𝑆)((𝑟( ·𝑠 ‘𝑊)𝑦)(+g‘𝑊)𝑧) ∈ ( ⊥ ‘𝑆)))
73	4, 22, 70, 72	syl3anbrc 1429	1 ⊢ ((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) → ( ⊥ ‘𝑆) ∈ 𝐿)

Syntax hints:   → wi 4   ∧ wa 383   ∧ w3a 1072   = wceq 1632   ∈ wcel 2139   ≠ wne 2932  ∀wral 3050   ⊆ wss 3715  ∅c0 4058  ‘cfv 6049  (class class class)co 6814  Basecbs 16079  +_gcplusg 16163  ._rcmulr 16164  Scalarcsca 16166   ·_𝑠 cvsca 16167  ·_𝑖cip 16168  0_gc0g 16322  Grpcgrp 17643  Ringcrg 18767  LModclmod 19085  LSubSpclss 19154  PreHilcphl 20191  ocvcocv 20226

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1871  ax-4 1886  ax-5 1988  ax-6 2054  ax-7 2090  ax-8 2141  ax-9 2148  ax-10 2168  ax-11 2183  ax-12 2196  ax-13 2391  ax-ext 2740  ax-rep 4923  ax-sep 4933  ax-nul 4941  ax-pow 4992  ax-pr 5055  ax-un 7115  ax-cnex 10204  ax-resscn 10205  ax-1cn 10206  ax-icn 10207  ax-addcl 10208  ax-addrcl 10209  ax-mulcl 10210  ax-mulrcl 10211  ax-mulcom 10212  ax-addass 10213  ax-mulass 10214  ax-distr 10215  ax-i2m1 10216  ax-1ne0 10217  ax-1rid 10218  ax-rnegex 10219  ax-rrecex 10220  ax-cnre 10221  ax-pre-lttri 10222  ax-pre-lttrn 10223  ax-pre-ltadd 10224  ax-pre-mulgt0 10225

This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3or 1073  df-3an 1074  df-tru 1635  df-ex 1854  df-nf 1859  df-sb 2047  df-eu 2611  df-mo 2612  df-clab 2747  df-cleq 2753  df-clel 2756  df-nfc 2891  df-ne 2933  df-nel 3036  df-ral 3055  df-rex 3056  df-reu 3057  df-rmo 3058  df-rab 3059  df-v 3342  df-sbc 3577  df-csb 3675  df-dif 3718  df-un 3720  df-in 3722  df-ss 3729  df-pss 3731  df-nul 4059  df-if 4231  df-pw 4304  df-sn 4322  df-pr 4324  df-tp 4326  df-op 4328  df-uni 4589  df-iun 4674  df-br 4805  df-opab 4865  df-mpt 4882  df-tr 4905  df-id 5174  df-eprel 5179  df-po 5187  df-so 5188  df-fr 5225  df-we 5227  df-xp 5272  df-rel 5273  df-cnv 5274  df-co 5275  df-dm 5276  df-rn 5277  df-res 5278  df-ima 5279  df-pred 5841  df-ord 5887  df-on 5888  df-lim 5889  df-suc 5890  df-iota 6012  df-fun 6051  df-fn 6052  df-f 6053  df-f1 6054  df-fo 6055  df-f1o 6056  df-fv 6057  df-riota 6775  df-ov 6817  df-oprab 6818  df-mpt2 6819  df-om 7232  df-wrecs 7577  df-recs 7638  df-rdg 7676  df-er 7913  df-en 8124  df-dom 8125  df-sdom 8126  df-pnf 10288  df-mnf 10289  df-xr 10290  df-ltxr 10291  df-le 10292  df-sub 10480  df-neg 10481  df-nn 11233  df-2 11291  df-3 11292  df-4 11293  df-5 11294  df-6 11295  df-7 11296  df-8 11297  df-ndx 16082  df-slot 16083  df-base 16085  df-sets 16086  df-plusg 16176  df-sca 16179  df-vsca 16180  df-ip 16181  df-0g 16324  df-mgm 17463  df-sgrp 17505  df-mnd 17516  df-grp 17646  df-ghm 17879  df-mgp 18710  df-ring 18769  df-lmod 19087  df-lss 19155  df-lmhm 19244  df-lvec 19325  df-sra 19394  df-rgmod 19395  df-phl 20193  df-ocv 20229

This theorem is referenced by:  ocvin  20240  ocvlsp  20242  csslss  20257  pjdm2  20277  pjff  20278  pjf2  20280  pjfo  20281  ocvpj  20283  pjthlem2  23429  pjth  23430