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Theorem asinsin 26397

Description: The arcsine function composed with sin is equal to the identity. This plus sinasin 26394 allow to view sin and arcsin as inverse operations to each other. For ease of use, we have not defined precisely the correct domain of correctness of this identity; in addition to the main region described here it is also true for some points on the branch cuts, namely when 𝐴 = (π / 2) − i𝑦 for nonnegative real 𝑦 and also symmetrically at 𝐴 = i𝑦 − (π / 2). In particular, when restricted to reals this identity extends to the closed interval [-(π / 2), (π / 2)], not just the open interval (see reasinsin 26401). (Contributed by Mario Carneiro, 2-Apr-2015.)

**Assertion**
Ref	Expression
asinsin	⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (arcsin‘(sin‘𝐴)) = 𝐴)

**Proof of Theorem asinsin**
Step	Hyp	Ref	Expression
1		sincl 16069	. . . 4 ⊢ (𝐴 ∈ ℂ → (sin‘𝐴) ∈ ℂ)
2	1	adantr 482	. . 3 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (sin‘𝐴) ∈ ℂ)
3		asinval 26387	. . 3 ⊢ ((sin‘𝐴) ∈ ℂ → (arcsin‘(sin‘𝐴)) = (-i · (log‘((i · (sin‘𝐴)) + (√‘(1 − ((sin‘𝐴)↑2)))))))
4	2, 3	syl 17	. 2 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (arcsin‘(sin‘𝐴)) = (-i · (log‘((i · (sin‘𝐴)) + (√‘(1 − ((sin‘𝐴)↑2)))))))
5		ax-icn 11169	. . . . . . . 8 ⊢ i ∈ ℂ
6		mulcl 11194	. . . . . . . 8 ⊢ ((i ∈ ℂ ∧ (sin‘𝐴) ∈ ℂ) → (i · (sin‘𝐴)) ∈ ℂ)
7	5, 2, 6	sylancr 588	. . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (i · (sin‘𝐴)) ∈ ℂ)
8		simpl 484	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → 𝐴 ∈ ℂ)
9		mulcl 11194	. . . . . . . . 9 ⊢ ((i ∈ ℂ ∧ 𝐴 ∈ ℂ) → (i · 𝐴) ∈ ℂ)
10	5, 8, 9	sylancr 588	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (i · 𝐴) ∈ ℂ)
11		efcl 16026	. . . . . . . 8 ⊢ ((i · 𝐴) ∈ ℂ → (exp‘(i · 𝐴)) ∈ ℂ)
12	10, 11	syl 17	. . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (exp‘(i · 𝐴)) ∈ ℂ)
13	7, 12	pncan3d 11574	. . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((i · (sin‘𝐴)) + ((exp‘(i · 𝐴)) − (i · (sin‘𝐴)))) = (exp‘(i · 𝐴)))
14	12, 7	subcld 11571	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((exp‘(i · 𝐴)) − (i · (sin‘𝐴))) ∈ ℂ)
15		ax-1cn 11168	. . . . . . . . 9 ⊢ 1 ∈ ℂ
16	2	sqcld 14109	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((sin‘𝐴)↑2) ∈ ℂ)
17		subcl 11459	. . . . . . . . 9 ⊢ ((1 ∈ ℂ ∧ ((sin‘𝐴)↑2) ∈ ℂ) → (1 − ((sin‘𝐴)↑2)) ∈ ℂ)
18	15, 16, 17	sylancr 588	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (1 − ((sin‘𝐴)↑2)) ∈ ℂ)
19		binom2sub 14183	. . . . . . . . . 10 ⊢ (((exp‘(i · 𝐴)) ∈ ℂ ∧ (i · (sin‘𝐴)) ∈ ℂ) → (((exp‘(i · 𝐴)) − (i · (sin‘𝐴)))↑2) = ((((exp‘(i · 𝐴))↑2) − (2 · ((exp‘(i · 𝐴)) · (i · (sin‘𝐴))))) + ((i · (sin‘𝐴))↑2)))
20	12, 7, 19	syl2anc 585	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (((exp‘(i · 𝐴)) − (i · (sin‘𝐴)))↑2) = ((((exp‘(i · 𝐴))↑2) − (2 · ((exp‘(i · 𝐴)) · (i · (sin‘𝐴))))) + ((i · (sin‘𝐴))↑2)))
21	12	sqvald 14108	. . . . . . . . . . . 12 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((exp‘(i · 𝐴))↑2) = ((exp‘(i · 𝐴)) · (exp‘(i · 𝐴))))
22		2cn 12287	. . . . . . . . . . . . . 14 ⊢ 2 ∈ ℂ
23	22	a1i 11	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → 2 ∈ ℂ)
24	23, 12, 7	mul12d 11423	. . . . . . . . . . . 12 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (2 · ((exp‘(i · 𝐴)) · (i · (sin‘𝐴)))) = ((exp‘(i · 𝐴)) · (2 · (i · (sin‘𝐴)))))
25	21, 24	oveq12d 7427	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (((exp‘(i · 𝐴))↑2) − (2 · ((exp‘(i · 𝐴)) · (i · (sin‘𝐴))))) = (((exp‘(i · 𝐴)) · (exp‘(i · 𝐴))) − ((exp‘(i · 𝐴)) · (2 · (i · (sin‘𝐴))))))
26		coscl 16070	. . . . . . . . . . . . . 14 ⊢ (𝐴 ∈ ℂ → (cos‘𝐴) ∈ ℂ)
27	26	adantr 482	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (cos‘𝐴) ∈ ℂ)
28		subsq 14174	. . . . . . . . . . . . 13 ⊢ (((cos‘𝐴) ∈ ℂ ∧ (i · (sin‘𝐴)) ∈ ℂ) → (((cos‘𝐴)↑2) − ((i · (sin‘𝐴))↑2)) = (((cos‘𝐴) + (i · (sin‘𝐴))) · ((cos‘𝐴) − (i · (sin‘𝐴)))))
29	27, 7, 28	syl2anc 585	. . . . . . . . . . . 12 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (((cos‘𝐴)↑2) − ((i · (sin‘𝐴))↑2)) = (((cos‘𝐴) + (i · (sin‘𝐴))) · ((cos‘𝐴) − (i · (sin‘𝐴)))))
30		sqmul 14084	. . . . . . . . . . . . . . . 16 ⊢ ((i ∈ ℂ ∧ (sin‘𝐴) ∈ ℂ) → ((i · (sin‘𝐴))↑2) = ((i↑2) · ((sin‘𝐴)↑2)))
31	5, 2, 30	sylancr 588	. . . . . . . . . . . . . . 15 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((i · (sin‘𝐴))↑2) = ((i↑2) · ((sin‘𝐴)↑2)))
32		i2 14166	. . . . . . . . . . . . . . . . 17 ⊢ (i↑2) = -1
33	32	oveq1i 7419	. . . . . . . . . . . . . . . 16 ⊢ ((i↑2) · ((sin‘𝐴)↑2)) = (-1 · ((sin‘𝐴)↑2))
34	16	mulm1d 11666	. . . . . . . . . . . . . . . 16 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (-1 · ((sin‘𝐴)↑2)) = -((sin‘𝐴)↑2))
35	33, 34	eqtrid 2785	. . . . . . . . . . . . . . 15 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((i↑2) · ((sin‘𝐴)↑2)) = -((sin‘𝐴)↑2))
36	31, 35	eqtrd 2773	. . . . . . . . . . . . . 14 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((i · (sin‘𝐴))↑2) = -((sin‘𝐴)↑2))
37	36	oveq2d 7425	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (((cos‘𝐴)↑2) − ((i · (sin‘𝐴))↑2)) = (((cos‘𝐴)↑2) − -((sin‘𝐴)↑2)))
38	27	sqcld 14109	. . . . . . . . . . . . . 14 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((cos‘𝐴)↑2) ∈ ℂ)
39	38, 16	subnegd 11578	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (((cos‘𝐴)↑2) − -((sin‘𝐴)↑2)) = (((cos‘𝐴)↑2) + ((sin‘𝐴)↑2)))
40	38, 16	addcomd 11416	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (((cos‘𝐴)↑2) + ((sin‘𝐴)↑2)) = (((sin‘𝐴)↑2) + ((cos‘𝐴)↑2)))
41	37, 39, 40	3eqtrd 2777	. . . . . . . . . . . 12 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (((cos‘𝐴)↑2) − ((i · (sin‘𝐴))↑2)) = (((sin‘𝐴)↑2) + ((cos‘𝐴)↑2)))
42		efival 16095	. . . . . . . . . . . . . . 15 ⊢ (𝐴 ∈ ℂ → (exp‘(i · 𝐴)) = ((cos‘𝐴) + (i · (sin‘𝐴))))
43	42	adantr 482	. . . . . . . . . . . . . 14 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (exp‘(i · 𝐴)) = ((cos‘𝐴) + (i · (sin‘𝐴))))
44	7	2timesd 12455	. . . . . . . . . . . . . . . 16 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (2 · (i · (sin‘𝐴))) = ((i · (sin‘𝐴)) + (i · (sin‘𝐴))))
45	43, 44	oveq12d 7427	. . . . . . . . . . . . . . 15 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((exp‘(i · 𝐴)) − (2 · (i · (sin‘𝐴)))) = (((cos‘𝐴) + (i · (sin‘𝐴))) − ((i · (sin‘𝐴)) + (i · (sin‘𝐴)))))
46	27, 7, 7	pnpcan2d 11609	. . . . . . . . . . . . . . 15 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (((cos‘𝐴) + (i · (sin‘𝐴))) − ((i · (sin‘𝐴)) + (i · (sin‘𝐴)))) = ((cos‘𝐴) − (i · (sin‘𝐴))))
47	45, 46	eqtrd 2773	. . . . . . . . . . . . . 14 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((exp‘(i · 𝐴)) − (2 · (i · (sin‘𝐴)))) = ((cos‘𝐴) − (i · (sin‘𝐴))))
48	43, 47	oveq12d 7427	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((exp‘(i · 𝐴)) · ((exp‘(i · 𝐴)) − (2 · (i · (sin‘𝐴))))) = (((cos‘𝐴) + (i · (sin‘𝐴))) · ((cos‘𝐴) − (i · (sin‘𝐴)))))
49		mulcl 11194	. . . . . . . . . . . . . . 15 ⊢ ((2 ∈ ℂ ∧ (i · (sin‘𝐴)) ∈ ℂ) → (2 · (i · (sin‘𝐴))) ∈ ℂ)
50	22, 7, 49	sylancr 588	. . . . . . . . . . . . . 14 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (2 · (i · (sin‘𝐴))) ∈ ℂ)
51	12, 12, 50	subdid 11670	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((exp‘(i · 𝐴)) · ((exp‘(i · 𝐴)) − (2 · (i · (sin‘𝐴))))) = (((exp‘(i · 𝐴)) · (exp‘(i · 𝐴))) − ((exp‘(i · 𝐴)) · (2 · (i · (sin‘𝐴))))))
52	48, 51	eqtr3d 2775	. . . . . . . . . . . 12 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (((cos‘𝐴) + (i · (sin‘𝐴))) · ((cos‘𝐴) − (i · (sin‘𝐴)))) = (((exp‘(i · 𝐴)) · (exp‘(i · 𝐴))) − ((exp‘(i · 𝐴)) · (2 · (i · (sin‘𝐴))))))
53	29, 41, 52	3eqtr3d 2781	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (((sin‘𝐴)↑2) + ((cos‘𝐴)↑2)) = (((exp‘(i · 𝐴)) · (exp‘(i · 𝐴))) − ((exp‘(i · 𝐴)) · (2 · (i · (sin‘𝐴))))))
54		sincossq 16119	. . . . . . . . . . . 12 ⊢ (𝐴 ∈ ℂ → (((sin‘𝐴)↑2) + ((cos‘𝐴)↑2)) = 1)
55	54	adantr 482	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (((sin‘𝐴)↑2) + ((cos‘𝐴)↑2)) = 1)
56	25, 53, 55	3eqtr2d 2779	. . . . . . . . . 10 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (((exp‘(i · 𝐴))↑2) − (2 · ((exp‘(i · 𝐴)) · (i · (sin‘𝐴))))) = 1)
57	56, 36	oveq12d 7427	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((((exp‘(i · 𝐴))↑2) − (2 · ((exp‘(i · 𝐴)) · (i · (sin‘𝐴))))) + ((i · (sin‘𝐴))↑2)) = (1 + -((sin‘𝐴)↑2)))
58		negsub 11508	. . . . . . . . . 10 ⊢ ((1 ∈ ℂ ∧ ((sin‘𝐴)↑2) ∈ ℂ) → (1 + -((sin‘𝐴)↑2)) = (1 − ((sin‘𝐴)↑2)))
59	15, 16, 58	sylancr 588	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (1 + -((sin‘𝐴)↑2)) = (1 − ((sin‘𝐴)↑2)))
60	20, 57, 59	3eqtrd 2777	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (((exp‘(i · 𝐴)) − (i · (sin‘𝐴)))↑2) = (1 − ((sin‘𝐴)↑2)))
61		halfre 12426	. . . . . . . . . . . 12 ⊢ (1 / 2) ∈ ℝ
62	61	a1i 11	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (1 / 2) ∈ ℝ)
63		negicn 11461	. . . . . . . . . . . . . . 15 ⊢ -i ∈ ℂ
64		mulcl 11194	. . . . . . . . . . . . . . 15 ⊢ ((-i ∈ ℂ ∧ 𝐴 ∈ ℂ) → (-i · 𝐴) ∈ ℂ)
65	63, 8, 64	sylancr 588	. . . . . . . . . . . . . 14 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (-i · 𝐴) ∈ ℂ)
66		efcl 16026	. . . . . . . . . . . . . 14 ⊢ ((-i · 𝐴) ∈ ℂ → (exp‘(-i · 𝐴)) ∈ ℂ)
67	65, 66	syl 17	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (exp‘(-i · 𝐴)) ∈ ℂ)
68	12, 67	addcld 11233	. . . . . . . . . . . 12 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((exp‘(i · 𝐴)) + (exp‘(-i · 𝐴))) ∈ ℂ)
69	68	recld 15141	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℜ‘((exp‘(i · 𝐴)) + (exp‘(-i · 𝐴)))) ∈ ℝ)
70		halfgt0 12428	. . . . . . . . . . . 12 ⊢ 0 < (1 / 2)
71	70	a1i 11	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → 0 < (1 / 2))
72	12	recld 15141	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℜ‘(exp‘(i · 𝐴))) ∈ ℝ)
73	67	recld 15141	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℜ‘(exp‘(-i · 𝐴))) ∈ ℝ)
74		asinsinlem 26396	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → 0 < (ℜ‘(exp‘(i · 𝐴))))
75		negcl 11460	. . . . . . . . . . . . . . . 16 ⊢ (𝐴 ∈ ℂ → -𝐴 ∈ ℂ)
76	75	adantr 482	. . . . . . . . . . . . . . 15 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → -𝐴 ∈ ℂ)
77		reneg 15072	. . . . . . . . . . . . . . . . 17 ⊢ (𝐴 ∈ ℂ → (ℜ‘-𝐴) = -(ℜ‘𝐴))
78	77	adantr 482	. . . . . . . . . . . . . . . 16 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℜ‘-𝐴) = -(ℜ‘𝐴))
79		halfpire 25974	. . . . . . . . . . . . . . . . . . . 20 ⊢ (π / 2) ∈ ℝ
80	79	renegcli 11521	. . . . . . . . . . . . . . . . . . 19 ⊢ -(π / 2) ∈ ℝ
81		recl 15057	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝐴 ∈ ℂ → (ℜ‘𝐴) ∈ ℝ)
82		iooneg 13448	. . . . . . . . . . . . . . . . . . 19 ⊢ ((-(π / 2) ∈ ℝ ∧ (π / 2) ∈ ℝ ∧ (ℜ‘𝐴) ∈ ℝ) → ((ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2)) ↔ -(ℜ‘𝐴) ∈ (-(π / 2)(,)--(π / 2))))
83	80, 79, 81, 82	mp3an12i 1466	. . . . . . . . . . . . . . . . . 18 ⊢ (𝐴 ∈ ℂ → ((ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2)) ↔ -(ℜ‘𝐴) ∈ (-(π / 2)(,)--(π / 2))))
84	83	biimpa 478	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → -(ℜ‘𝐴) ∈ (-(π / 2)(,)--(π / 2)))
85	79	recni 11228	. . . . . . . . . . . . . . . . . . 19 ⊢ (π / 2) ∈ ℂ
86	85	negnegi 11530	. . . . . . . . . . . . . . . . . 18 ⊢ --(π / 2) = (π / 2)
87	86	oveq2i 7420	. . . . . . . . . . . . . . . . 17 ⊢ (-(π / 2)(,)--(π / 2)) = (-(π / 2)(,)(π / 2))
88	84, 87	eleqtrdi 2844	. . . . . . . . . . . . . . . 16 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → -(ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2)))
89	78, 88	eqeltrd 2834	. . . . . . . . . . . . . . 15 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℜ‘-𝐴) ∈ (-(π / 2)(,)(π / 2)))
90		asinsinlem 26396	. . . . . . . . . . . . . . 15 ⊢ ((-𝐴 ∈ ℂ ∧ (ℜ‘-𝐴) ∈ (-(π / 2)(,)(π / 2))) → 0 < (ℜ‘(exp‘(i · -𝐴))))
91	76, 89, 90	syl2anc 585	. . . . . . . . . . . . . 14 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → 0 < (ℜ‘(exp‘(i · -𝐴))))
92		mulneg12 11652	. . . . . . . . . . . . . . . . 17 ⊢ ((i ∈ ℂ ∧ 𝐴 ∈ ℂ) → (-i · 𝐴) = (i · -𝐴))
93	5, 8, 92	sylancr 588	. . . . . . . . . . . . . . . 16 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (-i · 𝐴) = (i · -𝐴))
94	93	fveq2d 6896	. . . . . . . . . . . . . . 15 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (exp‘(-i · 𝐴)) = (exp‘(i · -𝐴)))
95	94	fveq2d 6896	. . . . . . . . . . . . . 14 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℜ‘(exp‘(-i · 𝐴))) = (ℜ‘(exp‘(i · -𝐴))))
96	91, 95	breqtrrd 5177	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → 0 < (ℜ‘(exp‘(-i · 𝐴))))
97	72, 73, 74, 96	addgt0d 11789	. . . . . . . . . . . 12 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → 0 < ((ℜ‘(exp‘(i · 𝐴))) + (ℜ‘(exp‘(-i · 𝐴)))))
98	12, 67	readdd 15161	. . . . . . . . . . . 12 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℜ‘((exp‘(i · 𝐴)) + (exp‘(-i · 𝐴)))) = ((ℜ‘(exp‘(i · 𝐴))) + (ℜ‘(exp‘(-i · 𝐴)))))
99	97, 98	breqtrrd 5177	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → 0 < (ℜ‘((exp‘(i · 𝐴)) + (exp‘(-i · 𝐴)))))
100	62, 69, 71, 99	mulgt0d 11369	. . . . . . . . . 10 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → 0 < ((1 / 2) · (ℜ‘((exp‘(i · 𝐴)) + (exp‘(-i · 𝐴))))))
101		cosval 16066	. . . . . . . . . . . . . 14 ⊢ (𝐴 ∈ ℂ → (cos‘𝐴) = (((exp‘(i · 𝐴)) + (exp‘(-i · 𝐴))) / 2))
102	101	adantr 482	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (cos‘𝐴) = (((exp‘(i · 𝐴)) + (exp‘(-i · 𝐴))) / 2))
103		2ne0 12316	. . . . . . . . . . . . . . 15 ⊢ 2 ≠ 0
104	103	a1i 11	. . . . . . . . . . . . . 14 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → 2 ≠ 0)
105	68, 23, 104	divrec2d 11994	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (((exp‘(i · 𝐴)) + (exp‘(-i · 𝐴))) / 2) = ((1 / 2) · ((exp‘(i · 𝐴)) + (exp‘(-i · 𝐴)))))
106	102, 105	eqtrd 2773	. . . . . . . . . . . 12 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (cos‘𝐴) = ((1 / 2) · ((exp‘(i · 𝐴)) + (exp‘(-i · 𝐴)))))
107	106	fveq2d 6896	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℜ‘(cos‘𝐴)) = (ℜ‘((1 / 2) · ((exp‘(i · 𝐴)) + (exp‘(-i · 𝐴))))))
108		remul2 15077	. . . . . . . . . . . 12 ⊢ (((1 / 2) ∈ ℝ ∧ ((exp‘(i · 𝐴)) + (exp‘(-i · 𝐴))) ∈ ℂ) → (ℜ‘((1 / 2) · ((exp‘(i · 𝐴)) + (exp‘(-i · 𝐴))))) = ((1 / 2) · (ℜ‘((exp‘(i · 𝐴)) + (exp‘(-i · 𝐴))))))
109	61, 68, 108	sylancr 588	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℜ‘((1 / 2) · ((exp‘(i · 𝐴)) + (exp‘(-i · 𝐴))))) = ((1 / 2) · (ℜ‘((exp‘(i · 𝐴)) + (exp‘(-i · 𝐴))))))
110	107, 109	eqtrd 2773	. . . . . . . . . 10 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℜ‘(cos‘𝐴)) = ((1 / 2) · (ℜ‘((exp‘(i · 𝐴)) + (exp‘(-i · 𝐴))))))
111	100, 110	breqtrrd 5177	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → 0 < (ℜ‘(cos‘𝐴)))
112	27, 7, 43	mvrraddd 11626	. . . . . . . . . 10 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((exp‘(i · 𝐴)) − (i · (sin‘𝐴))) = (cos‘𝐴))
113	112	fveq2d 6896	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℜ‘((exp‘(i · 𝐴)) − (i · (sin‘𝐴)))) = (ℜ‘(cos‘𝐴)))
114	111, 113	breqtrrd 5177	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → 0 < (ℜ‘((exp‘(i · 𝐴)) − (i · (sin‘𝐴)))))
115	14, 18, 60, 114	eqsqrt2d 15315	. . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((exp‘(i · 𝐴)) − (i · (sin‘𝐴))) = (√‘(1 − ((sin‘𝐴)↑2))))
116	115	oveq2d 7425	. . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((i · (sin‘𝐴)) + ((exp‘(i · 𝐴)) − (i · (sin‘𝐴)))) = ((i · (sin‘𝐴)) + (√‘(1 − ((sin‘𝐴)↑2)))))
117	13, 116	eqtr3d 2775	. . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (exp‘(i · 𝐴)) = ((i · (sin‘𝐴)) + (√‘(1 − ((sin‘𝐴)↑2)))))
118	117	fveq2d 6896	. . . 4 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (log‘(exp‘(i · 𝐴))) = (log‘((i · (sin‘𝐴)) + (√‘(1 − ((sin‘𝐴)↑2))))))
119		pire 25968	. . . . . . . . . 10 ⊢ π ∈ ℝ
120	119	renegcli 11521	. . . . . . . . 9 ⊢ -π ∈ ℝ
121	120	a1i 11	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → -π ∈ ℝ)
122	80	a1i 11	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → -(π / 2) ∈ ℝ)
123		elioore 13354	. . . . . . . . 9 ⊢ ((ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2)) → (ℜ‘𝐴) ∈ ℝ)
124	123	adantl 483	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℜ‘𝐴) ∈ ℝ)
125		pirp 25971	. . . . . . . . . . 11 ⊢ π ∈ ℝ⁺
126		rphalflt 13003	. . . . . . . . . . 11 ⊢ (π ∈ ℝ⁺ → (π / 2) < π)
127	125, 126	ax-mp 5	. . . . . . . . . 10 ⊢ (π / 2) < π
128	79, 119	ltnegi 11758	. . . . . . . . . 10 ⊢ ((π / 2) < π ↔ -π < -(π / 2))
129	127, 128	mpbi 229	. . . . . . . . 9 ⊢ -π < -(π / 2)
130	129	a1i 11	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → -π < -(π / 2))
131		eliooord 13383	. . . . . . . . . 10 ⊢ ((ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2)) → (-(π / 2) < (ℜ‘𝐴) ∧ (ℜ‘𝐴) < (π / 2)))
132	131	adantl 483	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (-(π / 2) < (ℜ‘𝐴) ∧ (ℜ‘𝐴) < (π / 2)))
133	132	simpld 496	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → -(π / 2) < (ℜ‘𝐴))
134	121, 122, 124, 130, 133	lttrd 11375	. . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → -π < (ℜ‘𝐴))
135		imre 15055	. . . . . . . . 9 ⊢ ((i · 𝐴) ∈ ℂ → (ℑ‘(i · 𝐴)) = (ℜ‘(-i · (i · 𝐴))))
136	10, 135	syl 17	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℑ‘(i · 𝐴)) = (ℜ‘(-i · (i · 𝐴))))
137	5, 5	mulneg1i 11660	. . . . . . . . . . . 12 ⊢ (-i · i) = -(i · i)
138		ixi 11843	. . . . . . . . . . . . 13 ⊢ (i · i) = -1
139	138	negeqi 11453	. . . . . . . . . . . 12 ⊢ -(i · i) = --1
140	15	negnegi 11530	. . . . . . . . . . . 12 ⊢ --1 = 1
141	137, 139, 140	3eqtri 2765	. . . . . . . . . . 11 ⊢ (-i · i) = 1
142	141	oveq1i 7419	. . . . . . . . . 10 ⊢ ((-i · i) · 𝐴) = (1 · 𝐴)
143	63	a1i 11	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → -i ∈ ℂ)
144	5	a1i 11	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → i ∈ ℂ)
145	143, 144, 8	mulassd 11237	. . . . . . . . . 10 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → ((-i · i) · 𝐴) = (-i · (i · 𝐴)))
146		mullid 11213	. . . . . . . . . . 11 ⊢ (𝐴 ∈ ℂ → (1 · 𝐴) = 𝐴)
147	146	adantr 482	. . . . . . . . . 10 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (1 · 𝐴) = 𝐴)
148	142, 145, 147	3eqtr3a 2797	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (-i · (i · 𝐴)) = 𝐴)
149	148	fveq2d 6896	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℜ‘(-i · (i · 𝐴))) = (ℜ‘𝐴))
150	136, 149	eqtrd 2773	. . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℑ‘(i · 𝐴)) = (ℜ‘𝐴))
151	134, 150	breqtrrd 5177	. . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → -π < (ℑ‘(i · 𝐴)))
152	119	a1i 11	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → π ∈ ℝ)
153	79	a1i 11	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (π / 2) ∈ ℝ)
154	132	simprd 497	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℜ‘𝐴) < (π / 2))
155	127	a1i 11	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (π / 2) < π)
156	124, 153, 152, 154, 155	lttrd 11375	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℜ‘𝐴) < π)
157	124, 152, 156	ltled 11362	. . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℜ‘𝐴) ≤ π)
158	150, 157	eqbrtrd 5171	. . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (ℑ‘(i · 𝐴)) ≤ π)
159		ellogrn 26068	. . . . . 6 ⊢ ((i · 𝐴) ∈ ran log ↔ ((i · 𝐴) ∈ ℂ ∧ -π < (ℑ‘(i · 𝐴)) ∧ (ℑ‘(i · 𝐴)) ≤ π))
160	10, 151, 158, 159	syl3anbrc 1344	. . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (i · 𝐴) ∈ ran log)
161		logef 26090	. . . . 5 ⊢ ((i · 𝐴) ∈ ran log → (log‘(exp‘(i · 𝐴))) = (i · 𝐴))
162	160, 161	syl 17	. . . 4 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (log‘(exp‘(i · 𝐴))) = (i · 𝐴))
163	118, 162	eqtr3d 2775	. . 3 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (log‘((i · (sin‘𝐴)) + (√‘(1 − ((sin‘𝐴)↑2))))) = (i · 𝐴))
164	163	oveq2d 7425	. 2 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (-i · (log‘((i · (sin‘𝐴)) + (√‘(1 − ((sin‘𝐴)↑2)))))) = (-i · (i · 𝐴)))
165	4, 164, 148	3eqtrd 2777	1 ⊢ ((𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ (-(π / 2)(,)(π / 2))) → (arcsin‘(sin‘𝐴)) = 𝐴)

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 397 = wceq 1542 ∈ wcel 2107 ≠ wne 2941 class class class wbr 5149 ran crn 5678 ‘cfv 6544 (class class class)co 7409 ℂcc 11108 ℝcr 11109 0cc0 11110 1c1 11111 ici 11112 + caddc 11113 · cmul 11115 < clt 11248 ≤ cle 11249 − cmin 11444 -cneg 11445 / cdiv 11871 2c2 12267 ℝ⁺crp 12974 (,)cioo 13324 ↑cexp 14027 ℜcre 15044 ℑcim 15045 √csqrt 15180 expce 16005 sincsin 16007 cosccos 16008 πcpi 16010 logclog 26063 arcsincasin 26367

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-10 2138 ax-11 2155 ax-12 2172 ax-ext 2704 ax-rep 5286 ax-sep 5300 ax-nul 5307 ax-pow 5364 ax-pr 5428 ax-un 7725 ax-inf2 9636 ax-cnex 11166 ax-resscn 11167 ax-1cn 11168 ax-icn 11169 ax-addcl 11170 ax-addrcl 11171 ax-mulcl 11172 ax-mulrcl 11173 ax-mulcom 11174 ax-addass 11175 ax-mulass 11176 ax-distr 11177 ax-i2m1 11178 ax-1ne0 11179 ax-1rid 11180 ax-rnegex 11181 ax-rrecex 11182 ax-cnre 11183 ax-pre-lttri 11184 ax-pre-lttrn 11185 ax-pre-ltadd 11186 ax-pre-mulgt0 11187 ax-pre-sup 11188 ax-addf 11189 ax-mulf 11190

This theorem depends on definitions: df-bi 206 df-an 398 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1783 df-nf 1787 df-sb 2069 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2886 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rmo 3377 df-reu 3378 df-rab 3434 df-v 3477 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-pss 3968 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-tp 4634 df-op 4636 df-uni 4910 df-int 4952 df-iun 5000 df-iin 5001 df-br 5150 df-opab 5212 df-mpt 5233 df-tr 5267 df-id 5575 df-eprel 5581 df-po 5589 df-so 5590 df-fr 5632 df-se 5633 df-we 5634 df-xp 5683 df-rel 5684 df-cnv 5685 df-co 5686 df-dm 5687 df-rn 5688 df-res 5689 df-ima 5690 df-pred 6301 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6496 df-fun 6546 df-fn 6547 df-f 6548 df-f1 6549 df-fo 6550 df-f1o 6551 df-fv 6552 df-isom 6553 df-riota 7365 df-ov 7412 df-oprab 7413 df-mpo 7414 df-of 7670 df-om 7856 df-1st 7975 df-2nd 7976 df-supp 8147 df-frecs 8266 df-wrecs 8297 df-recs 8371 df-rdg 8410 df-1o 8466 df-2o 8467 df-er 8703 df-map 8822 df-pm 8823 df-ixp 8892 df-en 8940 df-dom 8941 df-sdom 8942 df-fin 8943 df-fsupp 9362 df-fi 9406 df-sup 9437 df-inf 9438 df-oi 9505 df-card 9934 df-pnf 11250 df-mnf 11251 df-xr 11252 df-ltxr 11253 df-le 11254 df-sub 11446 df-neg 11447 df-div 11872 df-nn 12213 df-2 12275 df-3 12276 df-4 12277 df-5 12278 df-6 12279 df-7 12280 df-8 12281 df-9 12282 df-n0 12473 df-z 12559 df-dec 12678 df-uz 12823 df-q 12933 df-rp 12975 df-xneg 13092 df-xadd 13093 df-xmul 13094 df-ioo 13328 df-ioc 13329 df-ico 13330 df-icc 13331 df-fz 13485 df-fzo 13628 df-fl 13757 df-mod 13835 df-seq 13967 df-exp 14028 df-fac 14234 df-bc 14263 df-hash 14291 df-shft 15014 df-cj 15046 df-re 15047 df-im 15048 df-sqrt 15182 df-abs 15183 df-limsup 15415 df-clim 15432 df-rlim 15433 df-sum 15633 df-ef 16011 df-sin 16013 df-cos 16014 df-pi 16016 df-struct 17080 df-sets 17097 df-slot 17115 df-ndx 17127 df-base 17145 df-ress 17174 df-plusg 17210 df-mulr 17211 df-starv 17212 df-sca 17213 df-vsca 17214 df-ip 17215 df-tset 17216 df-ple 17217 df-ds 17219 df-unif 17220 df-hom 17221 df-cco 17222 df-rest 17368 df-topn 17369 df-0g 17387 df-gsum 17388 df-topgen 17389 df-pt 17390 df-prds 17393 df-xrs 17448 df-qtop 17453 df-imas 17454 df-xps 17456 df-mre 17530 df-mrc 17531 df-acs 17533 df-mgm 18561 df-sgrp 18610 df-mnd 18626 df-submnd 18672 df-mulg 18951 df-cntz 19181 df-cmn 19650 df-psmet 20936 df-xmet 20937 df-met 20938 df-bl 20939 df-mopn 20940 df-fbas 20941 df-fg 20942 df-cnfld 20945 df-top 22396 df-topon 22413 df-topsp 22435 df-bases 22449 df-cld 22523 df-ntr 22524 df-cls 22525 df-nei 22602 df-lp 22640 df-perf 22641 df-cn 22731 df-cnp 22732 df-haus 22819 df-tx 23066 df-hmeo 23259 df-fil 23350 df-fm 23442 df-flim 23443 df-flf 23444 df-xms 23826 df-ms 23827 df-tms 23828 df-cncf 24394 df-limc 25383 df-dv 25384 df-log 26065 df-asin 26370

This theorem is referenced by: acoscos 26398 reasinsin 26401 asinsinb 26402

W3C validator