ipasslem10 - Metamath Proof Explorer

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Theorem ipasslem10 30019

Description: Lemma for ipassi 30021. Show the inner product associative law for the imaginary number i. (Contributed by NM, 24-Aug-2007.) (New usage is discouraged.)

**Hypotheses**
Ref	Expression
ip1i.1	⊢ 𝑋 = (BaseSet‘𝑈)
ip1i.2	⊢ 𝐺 = ( +_𝑣 ‘𝑈)
ip1i.4	⊢ 𝑆 = ( ·_𝑠OLD ‘𝑈)
ip1i.7	⊢ 𝑃 = (·_𝑖OLD‘𝑈)
ip1i.9	⊢ 𝑈 ∈ CPreHil_OLD
ipasslem10.a	⊢ 𝐴 ∈ 𝑋
ipasslem10.b	⊢ 𝐵 ∈ 𝑋
ipasslem10.6	⊢ 𝑁 = (norm_CV‘𝑈)

**Assertion**
Ref	Expression
ipasslem10	⊢ ((i𝑆𝐴)𝑃𝐵) = (i · (𝐴𝑃𝐵))

**Proof of Theorem ipasslem10**
Step	Hyp	Ref	Expression
1		ip1i.9	. . . . . . 7 ⊢ 𝑈 ∈ CPreHil_OLD
2	1	phnvi 29996	. . . . . 6 ⊢ 𝑈 ∈ NrmCVec
3		ipasslem10.b	. . . . . 6 ⊢ 𝐵 ∈ 𝑋
4		ax-icn 11153	. . . . . . 7 ⊢ i ∈ ℂ
5		ipasslem10.a	. . . . . . 7 ⊢ 𝐴 ∈ 𝑋
6		ip1i.1	. . . . . . . 8 ⊢ 𝑋 = (BaseSet‘𝑈)
7		ip1i.4	. . . . . . . 8 ⊢ 𝑆 = ( ·_𝑠OLD ‘𝑈)
8	6, 7	nvscl 29806	. . . . . . 7 ⊢ ((𝑈 ∈ NrmCVec ∧ i ∈ ℂ ∧ 𝐴 ∈ 𝑋) → (i𝑆𝐴) ∈ 𝑋)
9	2, 4, 5, 8	mp3an 1461	. . . . . 6 ⊢ (i𝑆𝐴) ∈ 𝑋
10		ip1i.2	. . . . . . 7 ⊢ 𝐺 = ( +_𝑣 ‘𝑈)
11		ipasslem10.6	. . . . . . 7 ⊢ 𝑁 = (norm_CV‘𝑈)
12		ip1i.7	. . . . . . 7 ⊢ 𝑃 = (·_𝑖OLD‘𝑈)
13	6, 10, 7, 11, 12	4ipval2 29888	. . . . . 6 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ (i𝑆𝐴) ∈ 𝑋) → (4 · (𝐵𝑃(i𝑆𝐴))) = ((((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2)) + (i · (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2)))))
14	2, 3, 9, 13	mp3an 1461	. . . . 5 ⊢ (4 · (𝐵𝑃(i𝑆𝐴))) = ((((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2)) + (i · (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2))))
15		4cn 12281	. . . . . . 7 ⊢ 4 ∈ ℂ
16		negicn 11445	. . . . . . 7 ⊢ -i ∈ ℂ
17	6, 12	dipcl 29892	. . . . . . . 8 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ 𝐴 ∈ 𝑋) → (𝐵𝑃𝐴) ∈ ℂ)
18	2, 3, 5, 17	mp3an 1461	. . . . . . 7 ⊢ (𝐵𝑃𝐴) ∈ ℂ
19	15, 16, 18	mul12i 11393	. . . . . 6 ⊢ (4 · (-i · (𝐵𝑃𝐴))) = (-i · (4 · (𝐵𝑃𝐴)))
20	6, 10	nvgcl 29800	. . . . . . . . . . . . . 14 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ (i𝑆𝐴) ∈ 𝑋) → (𝐵𝐺(i𝑆𝐴)) ∈ 𝑋)
21	2, 3, 9, 20	mp3an 1461	. . . . . . . . . . . . 13 ⊢ (𝐵𝐺(i𝑆𝐴)) ∈ 𝑋
22	6, 11, 2, 21	nvcli 29842	. . . . . . . . . . . 12 ⊢ (𝑁‘(𝐵𝐺(i𝑆𝐴))) ∈ ℝ
23	22	recni 11212	. . . . . . . . . . 11 ⊢ (𝑁‘(𝐵𝐺(i𝑆𝐴))) ∈ ℂ
24	23	sqcli 14129	. . . . . . . . . 10 ⊢ ((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) ∈ ℂ
25		neg1cn 12310	. . . . . . . . . . . . . . 15 ⊢ -1 ∈ ℂ
26	6, 7	nvscl 29806	. . . . . . . . . . . . . . 15 ⊢ ((𝑈 ∈ NrmCVec ∧ -1 ∈ ℂ ∧ (i𝑆𝐴) ∈ 𝑋) → (-1𝑆(i𝑆𝐴)) ∈ 𝑋)
27	2, 25, 9, 26	mp3an 1461	. . . . . . . . . . . . . 14 ⊢ (-1𝑆(i𝑆𝐴)) ∈ 𝑋
28	6, 10	nvgcl 29800	. . . . . . . . . . . . . 14 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ (-1𝑆(i𝑆𝐴)) ∈ 𝑋) → (𝐵𝐺(-1𝑆(i𝑆𝐴))) ∈ 𝑋)
29	2, 3, 27, 28	mp3an 1461	. . . . . . . . . . . . 13 ⊢ (𝐵𝐺(-1𝑆(i𝑆𝐴))) ∈ 𝑋
30	6, 11, 2, 29	nvcli 29842	. . . . . . . . . . . 12 ⊢ (𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴)))) ∈ ℝ
31	30	recni 11212	. . . . . . . . . . 11 ⊢ (𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴)))) ∈ ℂ
32	31	sqcli 14129	. . . . . . . . . 10 ⊢ ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2) ∈ ℂ
33	24, 32	subcli 11520	. . . . . . . . 9 ⊢ (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2)) ∈ ℂ
34	6, 7	nvscl 29806	. . . . . . . . . . . . . . . 16 ⊢ ((𝑈 ∈ NrmCVec ∧ i ∈ ℂ ∧ (i𝑆𝐴) ∈ 𝑋) → (i𝑆(i𝑆𝐴)) ∈ 𝑋)
35	2, 4, 9, 34	mp3an 1461	. . . . . . . . . . . . . . 15 ⊢ (i𝑆(i𝑆𝐴)) ∈ 𝑋
36	6, 10	nvgcl 29800	. . . . . . . . . . . . . . 15 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ (i𝑆(i𝑆𝐴)) ∈ 𝑋) → (𝐵𝐺(i𝑆(i𝑆𝐴))) ∈ 𝑋)
37	2, 3, 35, 36	mp3an 1461	. . . . . . . . . . . . . 14 ⊢ (𝐵𝐺(i𝑆(i𝑆𝐴))) ∈ 𝑋
38	6, 11, 2, 37	nvcli 29842	. . . . . . . . . . . . 13 ⊢ (𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴)))) ∈ ℝ
39	38	recni 11212	. . . . . . . . . . . 12 ⊢ (𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴)))) ∈ ℂ
40	39	sqcli 14129	. . . . . . . . . . 11 ⊢ ((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) ∈ ℂ
41	6, 7	nvscl 29806	. . . . . . . . . . . . . . . 16 ⊢ ((𝑈 ∈ NrmCVec ∧ -i ∈ ℂ ∧ (i𝑆𝐴) ∈ 𝑋) → (-i𝑆(i𝑆𝐴)) ∈ 𝑋)
42	2, 16, 9, 41	mp3an 1461	. . . . . . . . . . . . . . 15 ⊢ (-i𝑆(i𝑆𝐴)) ∈ 𝑋
43	6, 10	nvgcl 29800	. . . . . . . . . . . . . . 15 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ (-i𝑆(i𝑆𝐴)) ∈ 𝑋) → (𝐵𝐺(-i𝑆(i𝑆𝐴))) ∈ 𝑋)
44	2, 3, 42, 43	mp3an 1461	. . . . . . . . . . . . . 14 ⊢ (𝐵𝐺(-i𝑆(i𝑆𝐴))) ∈ 𝑋
45	6, 11, 2, 44	nvcli 29842	. . . . . . . . . . . . 13 ⊢ (𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴)))) ∈ ℝ
46	45	recni 11212	. . . . . . . . . . . 12 ⊢ (𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴)))) ∈ ℂ
47	46	sqcli 14129	. . . . . . . . . . 11 ⊢ ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2) ∈ ℂ
48	40, 47	subcli 11520	. . . . . . . . . 10 ⊢ (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2)) ∈ ℂ
49	4, 48	mulcli 11205	. . . . . . . . 9 ⊢ (i · (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2))) ∈ ℂ
50	33, 49	addcomi 11389	. . . . . . . 8 ⊢ ((((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2)) + (i · (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2)))) = ((i · (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2))) + (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2)))
51	6, 10	nvgcl 29800	. . . . . . . . . . . . . . 15 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ 𝐴 ∈ 𝑋) → (𝐵𝐺𝐴) ∈ 𝑋)
52	2, 3, 5, 51	mp3an 1461	. . . . . . . . . . . . . 14 ⊢ (𝐵𝐺𝐴) ∈ 𝑋
53	6, 11, 2, 52	nvcli 29842	. . . . . . . . . . . . 13 ⊢ (𝑁‘(𝐵𝐺𝐴)) ∈ ℝ
54	53	recni 11212	. . . . . . . . . . . 12 ⊢ (𝑁‘(𝐵𝐺𝐴)) ∈ ℂ
55	54	sqcli 14129	. . . . . . . . . . 11 ⊢ ((𝑁‘(𝐵𝐺𝐴))↑2) ∈ ℂ
56	6, 7	nvscl 29806	. . . . . . . . . . . . . . . 16 ⊢ ((𝑈 ∈ NrmCVec ∧ -1 ∈ ℂ ∧ 𝐴 ∈ 𝑋) → (-1𝑆𝐴) ∈ 𝑋)
57	2, 25, 5, 56	mp3an 1461	. . . . . . . . . . . . . . 15 ⊢ (-1𝑆𝐴) ∈ 𝑋
58	6, 10	nvgcl 29800	. . . . . . . . . . . . . . 15 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ (-1𝑆𝐴) ∈ 𝑋) → (𝐵𝐺(-1𝑆𝐴)) ∈ 𝑋)
59	2, 3, 57, 58	mp3an 1461	. . . . . . . . . . . . . 14 ⊢ (𝐵𝐺(-1𝑆𝐴)) ∈ 𝑋
60	6, 11, 2, 59	nvcli 29842	. . . . . . . . . . . . 13 ⊢ (𝑁‘(𝐵𝐺(-1𝑆𝐴))) ∈ ℝ
61	60	recni 11212	. . . . . . . . . . . 12 ⊢ (𝑁‘(𝐵𝐺(-1𝑆𝐴))) ∈ ℂ
62	61	sqcli 14129	. . . . . . . . . . 11 ⊢ ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2) ∈ ℂ
63	55, 62	subcli 11520	. . . . . . . . . 10 ⊢ (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)) ∈ ℂ
64	6, 7	nvscl 29806	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑈 ∈ NrmCVec ∧ -i ∈ ℂ ∧ 𝐴 ∈ 𝑋) → (-i𝑆𝐴) ∈ 𝑋)
65	2, 16, 5, 64	mp3an 1461	. . . . . . . . . . . . . . . 16 ⊢ (-i𝑆𝐴) ∈ 𝑋
66	6, 10	nvgcl 29800	. . . . . . . . . . . . . . . 16 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ (-i𝑆𝐴) ∈ 𝑋) → (𝐵𝐺(-i𝑆𝐴)) ∈ 𝑋)
67	2, 3, 65, 66	mp3an 1461	. . . . . . . . . . . . . . 15 ⊢ (𝐵𝐺(-i𝑆𝐴)) ∈ 𝑋
68	6, 11, 2, 67	nvcli 29842	. . . . . . . . . . . . . 14 ⊢ (𝑁‘(𝐵𝐺(-i𝑆𝐴))) ∈ ℝ
69	68	recni 11212	. . . . . . . . . . . . 13 ⊢ (𝑁‘(𝐵𝐺(-i𝑆𝐴))) ∈ ℂ
70	69	sqcli 14129	. . . . . . . . . . . 12 ⊢ ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2) ∈ ℂ
71	24, 70	subcli 11520	. . . . . . . . . . 11 ⊢ (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2)) ∈ ℂ
72	4, 71	mulcli 11205	. . . . . . . . . 10 ⊢ (i · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))) ∈ ℂ
73	16, 63, 72	adddii 11210	. . . . . . . . 9 ⊢ (-i · ((((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)) + (i · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))))) = ((-i · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2))) + (-i · (i · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2)))))
74	4, 4, 5	3pm3.2i 1339	. . . . . . . . . . . . . . . . . 18 ⊢ (i ∈ ℂ ∧ i ∈ ℂ ∧ 𝐴 ∈ 𝑋)
75	6, 7	nvsass 29808	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑈 ∈ NrmCVec ∧ (i ∈ ℂ ∧ i ∈ ℂ ∧ 𝐴 ∈ 𝑋)) → ((i · i)𝑆𝐴) = (i𝑆(i𝑆𝐴)))
76	2, 74, 75	mp2an 690	. . . . . . . . . . . . . . . . 17 ⊢ ((i · i)𝑆𝐴) = (i𝑆(i𝑆𝐴))
77		ixi 11827	. . . . . . . . . . . . . . . . . 18 ⊢ (i · i) = -1
78	77	oveq1i 7404	. . . . . . . . . . . . . . . . 17 ⊢ ((i · i)𝑆𝐴) = (-1𝑆𝐴)
79	76, 78	eqtr3i 2762	. . . . . . . . . . . . . . . 16 ⊢ (i𝑆(i𝑆𝐴)) = (-1𝑆𝐴)
80	79	oveq2i 7405	. . . . . . . . . . . . . . 15 ⊢ (𝐵𝐺(i𝑆(i𝑆𝐴))) = (𝐵𝐺(-1𝑆𝐴))
81	80	fveq2i 6882	. . . . . . . . . . . . . 14 ⊢ (𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴)))) = (𝑁‘(𝐵𝐺(-1𝑆𝐴)))
82	81	oveq1i 7404	. . . . . . . . . . . . 13 ⊢ ((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) = ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)
83	4, 4	mulneg1i 11644	. . . . . . . . . . . . . . . . . . 19 ⊢ (-i · i) = -(i · i)
84	77	negeqi 11437	. . . . . . . . . . . . . . . . . . 19 ⊢ -(i · i) = --1
85		negneg1e1 12314	. . . . . . . . . . . . . . . . . . 19 ⊢ --1 = 1
86	83, 84, 85	3eqtri 2764	. . . . . . . . . . . . . . . . . 18 ⊢ (-i · i) = 1
87	86	oveq1i 7404	. . . . . . . . . . . . . . . . 17 ⊢ ((-i · i)𝑆𝐴) = (1𝑆𝐴)
88	16, 4, 5	3pm3.2i 1339	. . . . . . . . . . . . . . . . . 18 ⊢ (-i ∈ ℂ ∧ i ∈ ℂ ∧ 𝐴 ∈ 𝑋)
89	6, 7	nvsass 29808	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑈 ∈ NrmCVec ∧ (-i ∈ ℂ ∧ i ∈ ℂ ∧ 𝐴 ∈ 𝑋)) → ((-i · i)𝑆𝐴) = (-i𝑆(i𝑆𝐴)))
90	2, 88, 89	mp2an 690	. . . . . . . . . . . . . . . . 17 ⊢ ((-i · i)𝑆𝐴) = (-i𝑆(i𝑆𝐴))
91	6, 7	nvsid 29807	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐴 ∈ 𝑋) → (1𝑆𝐴) = 𝐴)
92	2, 5, 91	mp2an 690	. . . . . . . . . . . . . . . . 17 ⊢ (1𝑆𝐴) = 𝐴
93	87, 90, 92	3eqtr3i 2768	. . . . . . . . . . . . . . . 16 ⊢ (-i𝑆(i𝑆𝐴)) = 𝐴
94	93	oveq2i 7405	. . . . . . . . . . . . . . 15 ⊢ (𝐵𝐺(-i𝑆(i𝑆𝐴))) = (𝐵𝐺𝐴)
95	94	fveq2i 6882	. . . . . . . . . . . . . 14 ⊢ (𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴)))) = (𝑁‘(𝐵𝐺𝐴))
96	95	oveq1i 7404	. . . . . . . . . . . . 13 ⊢ ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2) = ((𝑁‘(𝐵𝐺𝐴))↑2)
97	82, 96	oveq12i 7406	. . . . . . . . . . . 12 ⊢ (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2)) = (((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺𝐴))↑2))
98	97	oveq2i 7405	. . . . . . . . . . 11 ⊢ (i · (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2))) = (i · (((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺𝐴))↑2)))
99	63	mulm1i 11643	. . . . . . . . . . . . . 14 ⊢ (-1 · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2))) = -(((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2))
100	55, 62	negsubdi2i 11530	. . . . . . . . . . . . . 14 ⊢ -(((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)) = (((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺𝐴))↑2))
101	99, 100	eqtr2i 2761	. . . . . . . . . . . . 13 ⊢ (((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺𝐴))↑2)) = (-1 · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)))
102	101	oveq2i 7405	. . . . . . . . . . . 12 ⊢ (i · (((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺𝐴))↑2))) = (i · (-1 · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2))))
103	4, 25, 63	mulassi 11209	. . . . . . . . . . . 12 ⊢ ((i · -1) · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2))) = (i · (-1 · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2))))
104	102, 103	eqtr4i 2763	. . . . . . . . . . 11 ⊢ (i · (((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺𝐴))↑2))) = ((i · -1) · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)))
105	4	mulm1i 11643	. . . . . . . . . . . . 13 ⊢ (-1 · i) = -i
106	25, 4, 105	mulcomli 11207	. . . . . . . . . . . 12 ⊢ (i · -1) = -i
107	106	oveq1i 7404	. . . . . . . . . . 11 ⊢ ((i · -1) · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2))) = (-i · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)))
108	98, 104, 107	3eqtri 2764	. . . . . . . . . 10 ⊢ (i · (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2))) = (-i · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)))
109	25, 4, 5	3pm3.2i 1339	. . . . . . . . . . . . . . . . . . 19 ⊢ (-1 ∈ ℂ ∧ i ∈ ℂ ∧ 𝐴 ∈ 𝑋)
110	6, 7	nvsass 29808	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝑈 ∈ NrmCVec ∧ (-1 ∈ ℂ ∧ i ∈ ℂ ∧ 𝐴 ∈ 𝑋)) → ((-1 · i)𝑆𝐴) = (-1𝑆(i𝑆𝐴)))
111	2, 109, 110	mp2an 690	. . . . . . . . . . . . . . . . . 18 ⊢ ((-1 · i)𝑆𝐴) = (-1𝑆(i𝑆𝐴))
112	105	oveq1i 7404	. . . . . . . . . . . . . . . . . 18 ⊢ ((-1 · i)𝑆𝐴) = (-i𝑆𝐴)
113	111, 112	eqtr3i 2762	. . . . . . . . . . . . . . . . 17 ⊢ (-1𝑆(i𝑆𝐴)) = (-i𝑆𝐴)
114	113	oveq2i 7405	. . . . . . . . . . . . . . . 16 ⊢ (𝐵𝐺(-1𝑆(i𝑆𝐴))) = (𝐵𝐺(-i𝑆𝐴))
115	114	fveq2i 6882	. . . . . . . . . . . . . . 15 ⊢ (𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴)))) = (𝑁‘(𝐵𝐺(-i𝑆𝐴)))
116	115	oveq1i 7404	. . . . . . . . . . . . . 14 ⊢ ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2) = ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2)
117	116	oveq2i 7405	. . . . . . . . . . . . 13 ⊢ (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2)) = (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))
118	71	mullidi 11203	. . . . . . . . . . . . 13 ⊢ (1 · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))) = (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))
119	117, 118	eqtr4i 2763	. . . . . . . . . . . 12 ⊢ (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2)) = (1 · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2)))
120	86	oveq1i 7404	. . . . . . . . . . . 12 ⊢ ((-i · i) · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))) = (1 · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2)))
121	119, 120	eqtr4i 2763	. . . . . . . . . . 11 ⊢ (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2)) = ((-i · i) · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2)))
122	16, 4, 71	mulassi 11209	. . . . . . . . . . 11 ⊢ ((-i · i) · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))) = (-i · (i · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))))
123	121, 122	eqtri 2760	. . . . . . . . . 10 ⊢ (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2)) = (-i · (i · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))))
124	108, 123	oveq12i 7406	. . . . . . . . 9 ⊢ ((i · (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2))) + (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2))) = ((-i · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2))) + (-i · (i · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2)))))
125	73, 124	eqtr4i 2763	. . . . . . . 8 ⊢ (-i · ((((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)) + (i · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))))) = ((i · (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2))) + (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2)))
126	50, 125	eqtr4i 2763	. . . . . . 7 ⊢ ((((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2)) + (i · (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2)))) = (-i · ((((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)) + (i · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2)))))
127	6, 10, 7, 11, 12	4ipval2 29888	. . . . . . . . 9 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ 𝐴 ∈ 𝑋) → (4 · (𝐵𝑃𝐴)) = ((((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)) + (i · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2)))))
128	2, 3, 5, 127	mp3an 1461	. . . . . . . 8 ⊢ (4 · (𝐵𝑃𝐴)) = ((((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)) + (i · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))))
129	128	oveq2i 7405	. . . . . . 7 ⊢ (-i · (4 · (𝐵𝑃𝐴))) = (-i · ((((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)) + (i · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2)))))
130	126, 129	eqtr4i 2763	. . . . . 6 ⊢ ((((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2)) + (i · (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2)))) = (-i · (4 · (𝐵𝑃𝐴)))
131	19, 130	eqtr4i 2763	. . . . 5 ⊢ (4 · (-i · (𝐵𝑃𝐴))) = ((((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2)) + (i · (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2))))
132	14, 131	eqtr4i 2763	. . . 4 ⊢ (4 · (𝐵𝑃(i𝑆𝐴))) = (4 · (-i · (𝐵𝑃𝐴)))
133	6, 12	dipcl 29892	. . . . . 6 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ (i𝑆𝐴) ∈ 𝑋) → (𝐵𝑃(i𝑆𝐴)) ∈ ℂ)
134	2, 3, 9, 133	mp3an 1461	. . . . 5 ⊢ (𝐵𝑃(i𝑆𝐴)) ∈ ℂ
135	16, 18	mulcli 11205	. . . . 5 ⊢ (-i · (𝐵𝑃𝐴)) ∈ ℂ
136		4ne0 12304	. . . . 5 ⊢ 4 ≠ 0
137	134, 135, 15, 136	mulcani 11837	. . . 4 ⊢ ((4 · (𝐵𝑃(i𝑆𝐴))) = (4 · (-i · (𝐵𝑃𝐴))) ↔ (𝐵𝑃(i𝑆𝐴)) = (-i · (𝐵𝑃𝐴)))
138	132, 137	mpbi 229	. . 3 ⊢ (𝐵𝑃(i𝑆𝐴)) = (-i · (𝐵𝑃𝐴))
139	138	fveq2i 6882	. 2 ⊢ (∗‘(𝐵𝑃(i𝑆𝐴))) = (∗‘(-i · (𝐵𝑃𝐴)))
140	6, 12	dipcj 29894	. . 3 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ (i𝑆𝐴) ∈ 𝑋) → (∗‘(𝐵𝑃(i𝑆𝐴))) = ((i𝑆𝐴)𝑃𝐵))
141	2, 3, 9, 140	mp3an 1461	. 2 ⊢ (∗‘(𝐵𝑃(i𝑆𝐴))) = ((i𝑆𝐴)𝑃𝐵)
142	16, 18	cjmuli 15120	. . 3 ⊢ (∗‘(-i · (𝐵𝑃𝐴))) = ((∗‘-i) · (∗‘(𝐵𝑃𝐴)))
143	25, 4	cjmuli 15120	. . . . 5 ⊢ (∗‘(-1 · i)) = ((∗‘-1) · (∗‘i))
144	105	fveq2i 6882	. . . . 5 ⊢ (∗‘(-1 · i)) = (∗‘-i)
145		neg1rr 12311	. . . . . . . 8 ⊢ -1 ∈ ℝ
146	25	cjrebi 15105	. . . . . . . 8 ⊢ (-1 ∈ ℝ ↔ (∗‘-1) = -1)
147	145, 146	mpbi 229	. . . . . . 7 ⊢ (∗‘-1) = -1
148		cji 15090	. . . . . . 7 ⊢ (∗‘i) = -i
149	147, 148	oveq12i 7406	. . . . . 6 ⊢ ((∗‘-1) · (∗‘i)) = (-1 · -i)
150		ax-1cn 11152	. . . . . . 7 ⊢ 1 ∈ ℂ
151	150, 4	mul2negi 11646	. . . . . 6 ⊢ (-1 · -i) = (1 · i)
152	4	mullidi 11203	. . . . . 6 ⊢ (1 · i) = i
153	149, 151, 152	3eqtri 2764	. . . . 5 ⊢ ((∗‘-1) · (∗‘i)) = i
154	143, 144, 153	3eqtr3i 2768	. . . 4 ⊢ (∗‘-i) = i
155	6, 12	dipcj 29894	. . . . 5 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ 𝐴 ∈ 𝑋) → (∗‘(𝐵𝑃𝐴)) = (𝐴𝑃𝐵))
156	2, 3, 5, 155	mp3an 1461	. . . 4 ⊢ (∗‘(𝐵𝑃𝐴)) = (𝐴𝑃𝐵)
157	154, 156	oveq12i 7406	. . 3 ⊢ ((∗‘-i) · (∗‘(𝐵𝑃𝐴))) = (i · (𝐴𝑃𝐵))
158	142, 157	eqtri 2760	. 2 ⊢ (∗‘(-i · (𝐵𝑃𝐴))) = (i · (𝐴𝑃𝐵))
159	139, 141, 158	3eqtr3i 2768	1 ⊢ ((i𝑆𝐴)𝑃𝐵) = (i · (𝐴𝑃𝐵))

Colors of variables: wff setvar class

Syntax hints: ∧ w3a 1087 = wceq 1541 ∈ wcel 2106 ‘cfv 6533 (class class class)co 7394 ℂcc 11092 ℝcr 11093 1c1 11095 ici 11096 + caddc 11097 · cmul 11099 − cmin 11428 -cneg 11429 2c2 12251 4c4 12253 ↑cexp 14011 ∗ccj 15027 NrmCVeccnv 29764 +_𝑣 cpv 29765 BaseSetcba 29766 ·_𝑠OLD cns 29767 norm_CVcnmcv 29770 ·_𝑖OLDcdip 29880 CPreHil_OLDccphlo 29992

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2703 ax-rep 5279 ax-sep 5293 ax-nul 5300 ax-pow 5357 ax-pr 5421 ax-un 7709 ax-inf2 9620 ax-cnex 11150 ax-resscn 11151 ax-1cn 11152 ax-icn 11153 ax-addcl 11154 ax-addrcl 11155 ax-mulcl 11156 ax-mulrcl 11157 ax-mulcom 11158 ax-addass 11159 ax-mulass 11160 ax-distr 11161 ax-i2m1 11162 ax-1ne0 11163 ax-1rid 11164 ax-rnegex 11165 ax-rrecex 11166 ax-cnre 11167 ax-pre-lttri 11168 ax-pre-lttrn 11169 ax-pre-ltadd 11170 ax-pre-mulgt0 11171 ax-pre-sup 11172

This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2534 df-eu 2563 df-clab 2710 df-cleq 2724 df-clel 2810 df-nfc 2885 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3376 df-reu 3377 df-rab 3433 df-v 3476 df-sbc 3775 df-csb 3891 df-dif 3948 df-un 3950 df-in 3952 df-ss 3962 df-pss 3964 df-nul 4320 df-if 4524 df-pw 4599 df-sn 4624 df-pr 4626 df-op 4630 df-uni 4903 df-int 4945 df-iun 4993 df-br 5143 df-opab 5205 df-mpt 5226 df-tr 5260 df-id 5568 df-eprel 5574 df-po 5582 df-so 5583 df-fr 5625 df-se 5626 df-we 5627 df-xp 5676 df-rel 5677 df-cnv 5678 df-co 5679 df-dm 5680 df-rn 5681 df-res 5682 df-ima 5683 df-pred 6290 df-ord 6357 df-on 6358 df-lim 6359 df-suc 6360 df-iota 6485 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-isom 6542 df-riota 7350 df-ov 7397 df-oprab 7398 df-mpo 7399 df-om 7840 df-1st 7959 df-2nd 7960 df-frecs 8250 df-wrecs 8281 df-recs 8355 df-rdg 8394 df-1o 8450 df-er 8688 df-en 8925 df-dom 8926 df-sdom 8927 df-fin 8928 df-sup 9421 df-oi 9489 df-card 9918 df-pnf 11234 df-mnf 11235 df-xr 11236 df-ltxr 11237 df-le 11238 df-sub 11430 df-neg 11431 df-div 11856 df-nn 12197 df-2 12259 df-3 12260 df-4 12261 df-n0 12457 df-z 12543 df-uz 12807 df-rp 12959 df-fz 13469 df-fzo 13612 df-seq 13951 df-exp 14012 df-hash 14275 df-cj 15030 df-re 15031 df-im 15032 df-sqrt 15166 df-abs 15167 df-clim 15416 df-sum 15617 df-grpo 29673 df-gid 29674 df-ginv 29675 df-ablo 29725 df-vc 29739 df-nv 29772 df-va 29775 df-ba 29776 df-sm 29777 df-0v 29778 df-nmcv 29780 df-dip 29881 df-ph 29993

This theorem is referenced by: ipasslem11 30020

W3C validator