ipasslem10 - Metamath Proof Explorer

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Theorem ipasslem10 29180

Description: Lemma for ipassi 29182. 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 29157	. . . . . 6 ⊢ 𝑈 ∈ NrmCVec
3		ipasslem10.b	. . . . . 6 ⊢ 𝐵 ∈ 𝑋
4		ax-icn 10914	. . . . . . 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 28967	. . . . . . 7 ⊢ ((𝑈 ∈ NrmCVec ∧ i ∈ ℂ ∧ 𝐴 ∈ 𝑋) → (i𝑆𝐴) ∈ 𝑋)
9	2, 4, 5, 8	mp3an 1459	. . . . . 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 29049	. . . . . 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 1459	. . . . 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 12041	. . . . . . 7 ⊢ 4 ∈ ℂ
16		negicn 11205	. . . . . . 7 ⊢ -i ∈ ℂ
17	6, 12	dipcl 29053	. . . . . . . 8 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ 𝐴 ∈ 𝑋) → (𝐵𝑃𝐴) ∈ ℂ)
18	2, 3, 5, 17	mp3an 1459	. . . . . . 7 ⊢ (𝐵𝑃𝐴) ∈ ℂ
19	15, 16, 18	mul12i 11153	. . . . . 6 ⊢ (4 · (-i · (𝐵𝑃𝐴))) = (-i · (4 · (𝐵𝑃𝐴)))
20	6, 10	nvgcl 28961	. . . . . . . . . . . . . 14 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ (i𝑆𝐴) ∈ 𝑋) → (𝐵𝐺(i𝑆𝐴)) ∈ 𝑋)
21	2, 3, 9, 20	mp3an 1459	. . . . . . . . . . . . 13 ⊢ (𝐵𝐺(i𝑆𝐴)) ∈ 𝑋
22	6, 11, 2, 21	nvcli 29003	. . . . . . . . . . . 12 ⊢ (𝑁‘(𝐵𝐺(i𝑆𝐴))) ∈ ℝ
23	22	recni 10973	. . . . . . . . . . 11 ⊢ (𝑁‘(𝐵𝐺(i𝑆𝐴))) ∈ ℂ
24	23	sqcli 13879	. . . . . . . . . 10 ⊢ ((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) ∈ ℂ
25		neg1cn 12070	. . . . . . . . . . . . . . 15 ⊢ -1 ∈ ℂ
26	6, 7	nvscl 28967	. . . . . . . . . . . . . . 15 ⊢ ((𝑈 ∈ NrmCVec ∧ -1 ∈ ℂ ∧ (i𝑆𝐴) ∈ 𝑋) → (-1𝑆(i𝑆𝐴)) ∈ 𝑋)
27	2, 25, 9, 26	mp3an 1459	. . . . . . . . . . . . . 14 ⊢ (-1𝑆(i𝑆𝐴)) ∈ 𝑋
28	6, 10	nvgcl 28961	. . . . . . . . . . . . . 14 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ (-1𝑆(i𝑆𝐴)) ∈ 𝑋) → (𝐵𝐺(-1𝑆(i𝑆𝐴))) ∈ 𝑋)
29	2, 3, 27, 28	mp3an 1459	. . . . . . . . . . . . 13 ⊢ (𝐵𝐺(-1𝑆(i𝑆𝐴))) ∈ 𝑋
30	6, 11, 2, 29	nvcli 29003	. . . . . . . . . . . 12 ⊢ (𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴)))) ∈ ℝ
31	30	recni 10973	. . . . . . . . . . 11 ⊢ (𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴)))) ∈ ℂ
32	31	sqcli 13879	. . . . . . . . . 10 ⊢ ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2) ∈ ℂ
33	24, 32	subcli 11280	. . . . . . . . 9 ⊢ (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2)) ∈ ℂ
34	6, 7	nvscl 28967	. . . . . . . . . . . . . . . 16 ⊢ ((𝑈 ∈ NrmCVec ∧ i ∈ ℂ ∧ (i𝑆𝐴) ∈ 𝑋) → (i𝑆(i𝑆𝐴)) ∈ 𝑋)
35	2, 4, 9, 34	mp3an 1459	. . . . . . . . . . . . . . 15 ⊢ (i𝑆(i𝑆𝐴)) ∈ 𝑋
36	6, 10	nvgcl 28961	. . . . . . . . . . . . . . 15 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ (i𝑆(i𝑆𝐴)) ∈ 𝑋) → (𝐵𝐺(i𝑆(i𝑆𝐴))) ∈ 𝑋)
37	2, 3, 35, 36	mp3an 1459	. . . . . . . . . . . . . 14 ⊢ (𝐵𝐺(i𝑆(i𝑆𝐴))) ∈ 𝑋
38	6, 11, 2, 37	nvcli 29003	. . . . . . . . . . . . 13 ⊢ (𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴)))) ∈ ℝ
39	38	recni 10973	. . . . . . . . . . . 12 ⊢ (𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴)))) ∈ ℂ
40	39	sqcli 13879	. . . . . . . . . . 11 ⊢ ((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) ∈ ℂ
41	6, 7	nvscl 28967	. . . . . . . . . . . . . . . 16 ⊢ ((𝑈 ∈ NrmCVec ∧ -i ∈ ℂ ∧ (i𝑆𝐴) ∈ 𝑋) → (-i𝑆(i𝑆𝐴)) ∈ 𝑋)
42	2, 16, 9, 41	mp3an 1459	. . . . . . . . . . . . . . 15 ⊢ (-i𝑆(i𝑆𝐴)) ∈ 𝑋
43	6, 10	nvgcl 28961	. . . . . . . . . . . . . . 15 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ (-i𝑆(i𝑆𝐴)) ∈ 𝑋) → (𝐵𝐺(-i𝑆(i𝑆𝐴))) ∈ 𝑋)
44	2, 3, 42, 43	mp3an 1459	. . . . . . . . . . . . . 14 ⊢ (𝐵𝐺(-i𝑆(i𝑆𝐴))) ∈ 𝑋
45	6, 11, 2, 44	nvcli 29003	. . . . . . . . . . . . 13 ⊢ (𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴)))) ∈ ℝ
46	45	recni 10973	. . . . . . . . . . . 12 ⊢ (𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴)))) ∈ ℂ
47	46	sqcli 13879	. . . . . . . . . . 11 ⊢ ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2) ∈ ℂ
48	40, 47	subcli 11280	. . . . . . . . . 10 ⊢ (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2)) ∈ ℂ
49	4, 48	mulcli 10966	. . . . . . . . 9 ⊢ (i · (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2))) ∈ ℂ
50	33, 49	addcomi 11149	. . . . . . . 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 28961	. . . . . . . . . . . . . . 15 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ 𝐴 ∈ 𝑋) → (𝐵𝐺𝐴) ∈ 𝑋)
52	2, 3, 5, 51	mp3an 1459	. . . . . . . . . . . . . 14 ⊢ (𝐵𝐺𝐴) ∈ 𝑋
53	6, 11, 2, 52	nvcli 29003	. . . . . . . . . . . . 13 ⊢ (𝑁‘(𝐵𝐺𝐴)) ∈ ℝ
54	53	recni 10973	. . . . . . . . . . . 12 ⊢ (𝑁‘(𝐵𝐺𝐴)) ∈ ℂ
55	54	sqcli 13879	. . . . . . . . . . 11 ⊢ ((𝑁‘(𝐵𝐺𝐴))↑2) ∈ ℂ
56	6, 7	nvscl 28967	. . . . . . . . . . . . . . . 16 ⊢ ((𝑈 ∈ NrmCVec ∧ -1 ∈ ℂ ∧ 𝐴 ∈ 𝑋) → (-1𝑆𝐴) ∈ 𝑋)
57	2, 25, 5, 56	mp3an 1459	. . . . . . . . . . . . . . 15 ⊢ (-1𝑆𝐴) ∈ 𝑋
58	6, 10	nvgcl 28961	. . . . . . . . . . . . . . 15 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ (-1𝑆𝐴) ∈ 𝑋) → (𝐵𝐺(-1𝑆𝐴)) ∈ 𝑋)
59	2, 3, 57, 58	mp3an 1459	. . . . . . . . . . . . . 14 ⊢ (𝐵𝐺(-1𝑆𝐴)) ∈ 𝑋
60	6, 11, 2, 59	nvcli 29003	. . . . . . . . . . . . 13 ⊢ (𝑁‘(𝐵𝐺(-1𝑆𝐴))) ∈ ℝ
61	60	recni 10973	. . . . . . . . . . . 12 ⊢ (𝑁‘(𝐵𝐺(-1𝑆𝐴))) ∈ ℂ
62	61	sqcli 13879	. . . . . . . . . . 11 ⊢ ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2) ∈ ℂ
63	55, 62	subcli 11280	. . . . . . . . . 10 ⊢ (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)) ∈ ℂ
64	6, 7	nvscl 28967	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑈 ∈ NrmCVec ∧ -i ∈ ℂ ∧ 𝐴 ∈ 𝑋) → (-i𝑆𝐴) ∈ 𝑋)
65	2, 16, 5, 64	mp3an 1459	. . . . . . . . . . . . . . . 16 ⊢ (-i𝑆𝐴) ∈ 𝑋
66	6, 10	nvgcl 28961	. . . . . . . . . . . . . . . 16 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ (-i𝑆𝐴) ∈ 𝑋) → (𝐵𝐺(-i𝑆𝐴)) ∈ 𝑋)
67	2, 3, 65, 66	mp3an 1459	. . . . . . . . . . . . . . 15 ⊢ (𝐵𝐺(-i𝑆𝐴)) ∈ 𝑋
68	6, 11, 2, 67	nvcli 29003	. . . . . . . . . . . . . 14 ⊢ (𝑁‘(𝐵𝐺(-i𝑆𝐴))) ∈ ℝ
69	68	recni 10973	. . . . . . . . . . . . 13 ⊢ (𝑁‘(𝐵𝐺(-i𝑆𝐴))) ∈ ℂ
70	69	sqcli 13879	. . . . . . . . . . . 12 ⊢ ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2) ∈ ℂ
71	24, 70	subcli 11280	. . . . . . . . . . 11 ⊢ (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2)) ∈ ℂ
72	4, 71	mulcli 10966	. . . . . . . . . 10 ⊢ (i · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))) ∈ ℂ
73	16, 63, 72	adddii 10971	. . . . . . . . 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 1337	. . . . . . . . . . . . . . . . . 18 ⊢ (i ∈ ℂ ∧ i ∈ ℂ ∧ 𝐴 ∈ 𝑋)
75	6, 7	nvsass 28969	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑈 ∈ NrmCVec ∧ (i ∈ ℂ ∧ i ∈ ℂ ∧ 𝐴 ∈ 𝑋)) → ((i · i)𝑆𝐴) = (i𝑆(i𝑆𝐴)))
76	2, 74, 75	mp2an 688	. . . . . . . . . . . . . . . . 17 ⊢ ((i · i)𝑆𝐴) = (i𝑆(i𝑆𝐴))
77		ixi 11587	. . . . . . . . . . . . . . . . . 18 ⊢ (i · i) = -1
78	77	oveq1i 7278	. . . . . . . . . . . . . . . . 17 ⊢ ((i · i)𝑆𝐴) = (-1𝑆𝐴)
79	76, 78	eqtr3i 2769	. . . . . . . . . . . . . . . 16 ⊢ (i𝑆(i𝑆𝐴)) = (-1𝑆𝐴)
80	79	oveq2i 7279	. . . . . . . . . . . . . . 15 ⊢ (𝐵𝐺(i𝑆(i𝑆𝐴))) = (𝐵𝐺(-1𝑆𝐴))
81	80	fveq2i 6771	. . . . . . . . . . . . . 14 ⊢ (𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴)))) = (𝑁‘(𝐵𝐺(-1𝑆𝐴)))
82	81	oveq1i 7278	. . . . . . . . . . . . 13 ⊢ ((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) = ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)
83	4, 4	mulneg1i 11404	. . . . . . . . . . . . . . . . . . 19 ⊢ (-i · i) = -(i · i)
84	77	negeqi 11197	. . . . . . . . . . . . . . . . . . 19 ⊢ -(i · i) = --1
85		negneg1e1 12074	. . . . . . . . . . . . . . . . . . 19 ⊢ --1 = 1
86	83, 84, 85	3eqtri 2771	. . . . . . . . . . . . . . . . . 18 ⊢ (-i · i) = 1
87	86	oveq1i 7278	. . . . . . . . . . . . . . . . 17 ⊢ ((-i · i)𝑆𝐴) = (1𝑆𝐴)
88	16, 4, 5	3pm3.2i 1337	. . . . . . . . . . . . . . . . . 18 ⊢ (-i ∈ ℂ ∧ i ∈ ℂ ∧ 𝐴 ∈ 𝑋)
89	6, 7	nvsass 28969	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑈 ∈ NrmCVec ∧ (-i ∈ ℂ ∧ i ∈ ℂ ∧ 𝐴 ∈ 𝑋)) → ((-i · i)𝑆𝐴) = (-i𝑆(i𝑆𝐴)))
90	2, 88, 89	mp2an 688	. . . . . . . . . . . . . . . . 17 ⊢ ((-i · i)𝑆𝐴) = (-i𝑆(i𝑆𝐴))
91	6, 7	nvsid 28968	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐴 ∈ 𝑋) → (1𝑆𝐴) = 𝐴)
92	2, 5, 91	mp2an 688	. . . . . . . . . . . . . . . . 17 ⊢ (1𝑆𝐴) = 𝐴
93	87, 90, 92	3eqtr3i 2775	. . . . . . . . . . . . . . . 16 ⊢ (-i𝑆(i𝑆𝐴)) = 𝐴
94	93	oveq2i 7279	. . . . . . . . . . . . . . 15 ⊢ (𝐵𝐺(-i𝑆(i𝑆𝐴))) = (𝐵𝐺𝐴)
95	94	fveq2i 6771	. . . . . . . . . . . . . 14 ⊢ (𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴)))) = (𝑁‘(𝐵𝐺𝐴))
96	95	oveq1i 7278	. . . . . . . . . . . . 13 ⊢ ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2) = ((𝑁‘(𝐵𝐺𝐴))↑2)
97	82, 96	oveq12i 7280	. . . . . . . . . . . 12 ⊢ (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2)) = (((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺𝐴))↑2))
98	97	oveq2i 7279	. . . . . . . . . . 11 ⊢ (i · (((𝑁‘(𝐵𝐺(i𝑆(i𝑆𝐴))))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆(i𝑆𝐴))))↑2))) = (i · (((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺𝐴))↑2)))
99	63	mulm1i 11403	. . . . . . . . . . . . . 14 ⊢ (-1 · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2))) = -(((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2))
100	55, 62	negsubdi2i 11290	. . . . . . . . . . . . . 14 ⊢ -(((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)) = (((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺𝐴))↑2))
101	99, 100	eqtr2i 2768	. . . . . . . . . . . . 13 ⊢ (((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺𝐴))↑2)) = (-1 · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)))
102	101	oveq2i 7279	. . . . . . . . . . . 12 ⊢ (i · (((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺𝐴))↑2))) = (i · (-1 · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2))))
103	4, 25, 63	mulassi 10970	. . . . . . . . . . . 12 ⊢ ((i · -1) · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2))) = (i · (-1 · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2))))
104	102, 103	eqtr4i 2770	. . . . . . . . . . 11 ⊢ (i · (((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺𝐴))↑2))) = ((i · -1) · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)))
105	4	mulm1i 11403	. . . . . . . . . . . . 13 ⊢ (-1 · i) = -i
106	25, 4, 105	mulcomli 10968	. . . . . . . . . . . 12 ⊢ (i · -1) = -i
107	106	oveq1i 7278	. . . . . . . . . . 11 ⊢ ((i · -1) · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2))) = (-i · (((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)))
108	98, 104, 107	3eqtri 2771	. . . . . . . . . 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 1337	. . . . . . . . . . . . . . . . . . 19 ⊢ (-1 ∈ ℂ ∧ i ∈ ℂ ∧ 𝐴 ∈ 𝑋)
110	6, 7	nvsass 28969	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝑈 ∈ NrmCVec ∧ (-1 ∈ ℂ ∧ i ∈ ℂ ∧ 𝐴 ∈ 𝑋)) → ((-1 · i)𝑆𝐴) = (-1𝑆(i𝑆𝐴)))
111	2, 109, 110	mp2an 688	. . . . . . . . . . . . . . . . . 18 ⊢ ((-1 · i)𝑆𝐴) = (-1𝑆(i𝑆𝐴))
112	105	oveq1i 7278	. . . . . . . . . . . . . . . . . 18 ⊢ ((-1 · i)𝑆𝐴) = (-i𝑆𝐴)
113	111, 112	eqtr3i 2769	. . . . . . . . . . . . . . . . 17 ⊢ (-1𝑆(i𝑆𝐴)) = (-i𝑆𝐴)
114	113	oveq2i 7279	. . . . . . . . . . . . . . . 16 ⊢ (𝐵𝐺(-1𝑆(i𝑆𝐴))) = (𝐵𝐺(-i𝑆𝐴))
115	114	fveq2i 6771	. . . . . . . . . . . . . . 15 ⊢ (𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴)))) = (𝑁‘(𝐵𝐺(-i𝑆𝐴)))
116	115	oveq1i 7278	. . . . . . . . . . . . . 14 ⊢ ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2) = ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2)
117	116	oveq2i 7279	. . . . . . . . . . . . 13 ⊢ (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2)) = (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))
118	71	mulid2i 10964	. . . . . . . . . . . . 13 ⊢ (1 · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))) = (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))
119	117, 118	eqtr4i 2770	. . . . . . . . . . . 12 ⊢ (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2)) = (1 · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2)))
120	86	oveq1i 7278	. . . . . . . . . . . 12 ⊢ ((-i · i) · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))) = (1 · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2)))
121	119, 120	eqtr4i 2770	. . . . . . . . . . 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 10970	. . . . . . . . . . 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 2767	. . . . . . . . . 10 ⊢ (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆(i𝑆𝐴))))↑2)) = (-i · (i · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))))
124	108, 123	oveq12i 7280	. . . . . . . . 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 2770	. . . . . . . 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 2770	. . . . . . 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 29049	. . . . . . . . 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 1459	. . . . . . . 8 ⊢ (4 · (𝐵𝑃𝐴)) = ((((𝑁‘(𝐵𝐺𝐴))↑2) − ((𝑁‘(𝐵𝐺(-1𝑆𝐴)))↑2)) + (i · (((𝑁‘(𝐵𝐺(i𝑆𝐴)))↑2) − ((𝑁‘(𝐵𝐺(-i𝑆𝐴)))↑2))))
129	128	oveq2i 7279	. . . . . . 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 2770	. . . . . 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 2770	. . . . 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 2770	. . . 4 ⊢ (4 · (𝐵𝑃(i𝑆𝐴))) = (4 · (-i · (𝐵𝑃𝐴)))
133	6, 12	dipcl 29053	. . . . . 6 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ (i𝑆𝐴) ∈ 𝑋) → (𝐵𝑃(i𝑆𝐴)) ∈ ℂ)
134	2, 3, 9, 133	mp3an 1459	. . . . 5 ⊢ (𝐵𝑃(i𝑆𝐴)) ∈ ℂ
135	16, 18	mulcli 10966	. . . . 5 ⊢ (-i · (𝐵𝑃𝐴)) ∈ ℂ
136		4ne0 12064	. . . . 5 ⊢ 4 ≠ 0
137	134, 135, 15, 136	mulcani 11597	. . . 4 ⊢ ((4 · (𝐵𝑃(i𝑆𝐴))) = (4 · (-i · (𝐵𝑃𝐴))) ↔ (𝐵𝑃(i𝑆𝐴)) = (-i · (𝐵𝑃𝐴)))
138	132, 137	mpbi 229	. . 3 ⊢ (𝐵𝑃(i𝑆𝐴)) = (-i · (𝐵𝑃𝐴))
139	138	fveq2i 6771	. 2 ⊢ (∗‘(𝐵𝑃(i𝑆𝐴))) = (∗‘(-i · (𝐵𝑃𝐴)))
140	6, 12	dipcj 29055	. . 3 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ (i𝑆𝐴) ∈ 𝑋) → (∗‘(𝐵𝑃(i𝑆𝐴))) = ((i𝑆𝐴)𝑃𝐵))
141	2, 3, 9, 140	mp3an 1459	. 2 ⊢ (∗‘(𝐵𝑃(i𝑆𝐴))) = ((i𝑆𝐴)𝑃𝐵)
142	16, 18	cjmuli 14881	. . 3 ⊢ (∗‘(-i · (𝐵𝑃𝐴))) = ((∗‘-i) · (∗‘(𝐵𝑃𝐴)))
143	25, 4	cjmuli 14881	. . . . 5 ⊢ (∗‘(-1 · i)) = ((∗‘-1) · (∗‘i))
144	105	fveq2i 6771	. . . . 5 ⊢ (∗‘(-1 · i)) = (∗‘-i)
145		neg1rr 12071	. . . . . . . 8 ⊢ -1 ∈ ℝ
146	25	cjrebi 14866	. . . . . . . 8 ⊢ (-1 ∈ ℝ ↔ (∗‘-1) = -1)
147	145, 146	mpbi 229	. . . . . . 7 ⊢ (∗‘-1) = -1
148		cji 14851	. . . . . . 7 ⊢ (∗‘i) = -i
149	147, 148	oveq12i 7280	. . . . . 6 ⊢ ((∗‘-1) · (∗‘i)) = (-1 · -i)
150		ax-1cn 10913	. . . . . . 7 ⊢ 1 ∈ ℂ
151	150, 4	mul2negi 11406	. . . . . 6 ⊢ (-1 · -i) = (1 · i)
152	4	mulid2i 10964	. . . . . 6 ⊢ (1 · i) = i
153	149, 151, 152	3eqtri 2771	. . . . 5 ⊢ ((∗‘-1) · (∗‘i)) = i
154	143, 144, 153	3eqtr3i 2775	. . . 4 ⊢ (∗‘-i) = i
155	6, 12	dipcj 29055	. . . . 5 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐵 ∈ 𝑋 ∧ 𝐴 ∈ 𝑋) → (∗‘(𝐵𝑃𝐴)) = (𝐴𝑃𝐵))
156	2, 3, 5, 155	mp3an 1459	. . . 4 ⊢ (∗‘(𝐵𝑃𝐴)) = (𝐴𝑃𝐵)
157	154, 156	oveq12i 7280	. . 3 ⊢ ((∗‘-i) · (∗‘(𝐵𝑃𝐴))) = (i · (𝐴𝑃𝐵))
158	142, 157	eqtri 2767	. 2 ⊢ (∗‘(-i · (𝐵𝑃𝐴))) = (i · (𝐴𝑃𝐵))
159	139, 141, 158	3eqtr3i 2775	1 ⊢ ((i𝑆𝐴)𝑃𝐵) = (i · (𝐴𝑃𝐵))

Colors of variables: wff setvar class

Syntax hints: ∧ w3a 1085 = wceq 1541 ∈ wcel 2109 ‘cfv 6430 (class class class)co 7268 ℂcc 10853 ℝcr 10854 1c1 10856 ici 10857 + caddc 10858 · cmul 10860 − cmin 11188 -cneg 11189 2c2 12011 4c4 12013 ↑cexp 13763 ∗ccj 14788 NrmCVeccnv 28925 +_𝑣 cpv 28926 BaseSetcba 28927 ·_𝑠OLD cns 28928 norm_CVcnmcv 28931 ·_𝑖OLDcdip 29041 CPreHil_OLDccphlo 29153

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1801 ax-4 1815 ax-5 1916 ax-6 1974 ax-7 2014 ax-8 2111 ax-9 2119 ax-10 2140 ax-11 2157 ax-12 2174 ax-ext 2710 ax-rep 5213 ax-sep 5226 ax-nul 5233 ax-pow 5291 ax-pr 5355 ax-un 7579 ax-inf2 9360 ax-cnex 10911 ax-resscn 10912 ax-1cn 10913 ax-icn 10914 ax-addcl 10915 ax-addrcl 10916 ax-mulcl 10917 ax-mulrcl 10918 ax-mulcom 10919 ax-addass 10920 ax-mulass 10921 ax-distr 10922 ax-i2m1 10923 ax-1ne0 10924 ax-1rid 10925 ax-rnegex 10926 ax-rrecex 10927 ax-cnre 10928 ax-pre-lttri 10929 ax-pre-lttrn 10930 ax-pre-ltadd 10931 ax-pre-mulgt0 10932 ax-pre-sup 10933

This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1544 df-fal 1554 df-ex 1786 df-nf 1790 df-sb 2071 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2817 df-nfc 2890 df-ne 2945 df-nel 3051 df-ral 3070 df-rex 3071 df-reu 3072 df-rmo 3073 df-rab 3074 df-v 3432 df-sbc 3720 df-csb 3837 df-dif 3894 df-un 3896 df-in 3898 df-ss 3908 df-pss 3910 df-nul 4262 df-if 4465 df-pw 4540 df-sn 4567 df-pr 4569 df-tp 4571 df-op 4573 df-uni 4845 df-int 4885 df-iun 4931 df-br 5079 df-opab 5141 df-mpt 5162 df-tr 5196 df-id 5488 df-eprel 5494 df-po 5502 df-so 5503 df-fr 5543 df-se 5544 df-we 5545 df-xp 5594 df-rel 5595 df-cnv 5596 df-co 5597 df-dm 5598 df-rn 5599 df-res 5600 df-ima 5601 df-pred 6199 df-ord 6266 df-on 6267 df-lim 6268 df-suc 6269 df-iota 6388 df-fun 6432 df-fn 6433 df-f 6434 df-f1 6435 df-fo 6436 df-f1o 6437 df-fv 6438 df-isom 6439 df-riota 7225 df-ov 7271 df-oprab 7272 df-mpo 7273 df-om 7701 df-1st 7817 df-2nd 7818 df-frecs 8081 df-wrecs 8112 df-recs 8186 df-rdg 8225 df-1o 8281 df-er 8472 df-en 8708 df-dom 8709 df-sdom 8710 df-fin 8711 df-sup 9162 df-oi 9230 df-card 9681 df-pnf 10995 df-mnf 10996 df-xr 10997 df-ltxr 10998 df-le 10999 df-sub 11190 df-neg 11191 df-div 11616 df-nn 11957 df-2 12019 df-3 12020 df-4 12021 df-n0 12217 df-z 12303 df-uz 12565 df-rp 12713 df-fz 13222 df-fzo 13365 df-seq 13703 df-exp 13764 df-hash 14026 df-cj 14791 df-re 14792 df-im 14793 df-sqrt 14927 df-abs 14928 df-clim 15178 df-sum 15379 df-grpo 28834 df-gid 28835 df-ginv 28836 df-ablo 28886 df-vc 28900 df-nv 28933 df-va 28936 df-ba 28937 df-sm 28938 df-0v 28939 df-nmcv 28941 df-dip 29042 df-ph 29154

This theorem is referenced by: ipasslem11 29181

W3C validator