Theorem argrege0 25301

Description: Closure of the argument of a complex number with nonnegative real part. (Contributed by Mario Carneiro, 2-Apr-2015.)

Assertion

Ref	Expression
argrege0	⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (ℑ‘(log‘𝐴)) ∈ (-(π / 2)[,](π / 2)))

Proof of Theorem argrege0

Step	Hyp	Ref	Expression
1		logcl 25259	. . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (log‘𝐴) ∈ ℂ)
2	1	3adant3 1129	. . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (log‘𝐴) ∈ ℂ)
3	2	imcld 14602	. 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (ℑ‘(log‘𝐴)) ∈ ℝ)
4		simp3 1135	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → 0 ≤ (ℜ‘𝐴))
5		simp1 1133	. . . . . . . . . . . 12 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → 𝐴 ∈ ℂ)
6	5	abscld 14844	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (abs‘𝐴) ∈ ℝ)
7	6	recnd 10707	. . . . . . . . . 10 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (abs‘𝐴) ∈ ℂ)
8	7	mul01d 10877	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → ((abs‘𝐴) · 0) = 0)
9		absrpcl 14696	. . . . . . . . . . . . . 14 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (abs‘𝐴) ∈ ℝ+)
10	9	3adant3 1129	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (abs‘𝐴) ∈ ℝ+)
11	10	rpne0d 12477	. . . . . . . . . . . 12 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (abs‘𝐴) ≠ 0)
12	5, 7, 11	divcld 11454	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (𝐴 / (abs‘𝐴)) ∈ ℂ)
13	6, 12	remul2d 14634	. . . . . . . . . 10 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (ℜ‘((abs‘𝐴) · (𝐴 / (abs‘𝐴)))) = ((abs‘𝐴) · (ℜ‘(𝐴 / (abs‘𝐴)))))
14	5, 7, 11	divcan2d 11456	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → ((abs‘𝐴) · (𝐴 / (abs‘𝐴))) = 𝐴)
15	14	fveq2d 6662	. . . . . . . . . 10 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (ℜ‘((abs‘𝐴) · (𝐴 / (abs‘𝐴)))) = (ℜ‘𝐴))
16	13, 15	eqtr3d 2795	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → ((abs‘𝐴) · (ℜ‘(𝐴 / (abs‘𝐴)))) = (ℜ‘𝐴))
17	4, 8, 16	3brtr4d 5064	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → ((abs‘𝐴) · 0) ≤ ((abs‘𝐴) · (ℜ‘(𝐴 / (abs‘𝐴)))))
18		0re 10681	. . . . . . . . . 10 ⊢ 0 ∈ ℝ
19	18	a1i 11	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → 0 ∈ ℝ)
20	12	recld 14601	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (ℜ‘(𝐴 / (abs‘𝐴))) ∈ ℝ)
21	19, 20, 10	lemul2d 12516	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (0 ≤ (ℜ‘(𝐴 / (abs‘𝐴))) ↔ ((abs‘𝐴) · 0) ≤ ((abs‘𝐴) · (ℜ‘(𝐴 / (abs‘𝐴))))))
22	17, 21	mpbird 260	. . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → 0 ≤ (ℜ‘(𝐴 / (abs‘𝐴))))
23		efiarg 25297	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (exp‘(i · (ℑ‘(log‘𝐴)))) = (𝐴 / (abs‘𝐴)))
24	23	3adant3 1129	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (exp‘(i · (ℑ‘(log‘𝐴)))) = (𝐴 / (abs‘𝐴)))
25	24	fveq2d 6662	. . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (ℜ‘(exp‘(i · (ℑ‘(log‘𝐴))))) = (ℜ‘(𝐴 / (abs‘𝐴))))
26	22, 25	breqtrrd 5060	. . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → 0 ≤ (ℜ‘(exp‘(i · (ℑ‘(log‘𝐴))))))
27		recosval 15537	. . . . . . 7 ⊢ ((ℑ‘(log‘𝐴)) ∈ ℝ → (cos‘(ℑ‘(log‘𝐴))) = (ℜ‘(exp‘(i · (ℑ‘(log‘𝐴))))))
28	3, 27	syl 17	. . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (cos‘(ℑ‘(log‘𝐴))) = (ℜ‘(exp‘(i · (ℑ‘(log‘𝐴))))))
29	26, 28	breqtrrd 5060	. . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → 0 ≤ (cos‘(ℑ‘(log‘𝐴))))
30		halfpire 25156	. . . . . . . . . 10 ⊢ (π / 2) ∈ ℝ
31		pirp 25153	. . . . . . . . . . 11 ⊢ π ∈ ℝ+
32		rphalfcl 12457	. . . . . . . . . . 11 ⊢ (π ∈ ℝ+ → (π / 2) ∈ ℝ+)
33		rpge0 12443	. . . . . . . . . . 11 ⊢ ((π / 2) ∈ ℝ+ → 0 ≤ (π / 2))
34	31, 32, 33	mp2b 10	. . . . . . . . . 10 ⊢ 0 ≤ (π / 2)
35		pire 25150	. . . . . . . . . . 11 ⊢ π ∈ ℝ
36		rphalflt 12459	. . . . . . . . . . . 12 ⊢ (π ∈ ℝ+ → (π / 2) < π)
37	31, 36	ax-mp 5	. . . . . . . . . . 11 ⊢ (π / 2) < π
38	30, 35, 37	ltleii 10801	. . . . . . . . . 10 ⊢ (π / 2) ≤ π
39	18, 35	elicc2i 12845	. . . . . . . . . 10 ⊢ ((π / 2) ∈ (0[,]π) ↔ ((π / 2) ∈ ℝ ∧ 0 ≤ (π / 2) ∧ (π / 2) ≤ π))
40	30, 34, 38, 39	mpbir3an 1338	. . . . . . . . 9 ⊢ (π / 2) ∈ (0[,]π)
41	3	recnd 10707	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (ℑ‘(log‘𝐴)) ∈ ℂ)
42	41	abscld 14844	. . . . . . . . . 10 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (abs‘(ℑ‘(log‘𝐴))) ∈ ℝ)
43	41	absge0d 14852	. . . . . . . . . 10 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → 0 ≤ (abs‘(ℑ‘(log‘𝐴))))
44		logimcl 25260	. . . . . . . . . . . . . 14 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (-π < (ℑ‘(log‘𝐴)) ∧ (ℑ‘(log‘𝐴)) ≤ π))
45	44	3adant3 1129	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (-π < (ℑ‘(log‘𝐴)) ∧ (ℑ‘(log‘𝐴)) ≤ π))
46	45	simpld 498	. . . . . . . . . . . 12 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → -π < (ℑ‘(log‘𝐴)))
47	35	renegcli 10985	. . . . . . . . . . . . 13 ⊢ -π ∈ ℝ
48		ltle 10767	. . . . . . . . . . . . 13 ⊢ ((-π ∈ ℝ ∧ (ℑ‘(log‘𝐴)) ∈ ℝ) → (-π < (ℑ‘(log‘𝐴)) → -π ≤ (ℑ‘(log‘𝐴))))
49	47, 3, 48	sylancr 590	. . . . . . . . . . . 12 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (-π < (ℑ‘(log‘𝐴)) → -π ≤ (ℑ‘(log‘𝐴))))
50	46, 49	mpd 15	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → -π ≤ (ℑ‘(log‘𝐴)))
51	45	simprd 499	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (ℑ‘(log‘𝐴)) ≤ π)
52		absle 14723	. . . . . . . . . . . 12 ⊢ (((ℑ‘(log‘𝐴)) ∈ ℝ ∧ π ∈ ℝ) → ((abs‘(ℑ‘(log‘𝐴))) ≤ π ↔ (-π ≤ (ℑ‘(log‘𝐴)) ∧ (ℑ‘(log‘𝐴)) ≤ π)))
53	3, 35, 52	sylancl 589	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → ((abs‘(ℑ‘(log‘𝐴))) ≤ π ↔ (-π ≤ (ℑ‘(log‘𝐴)) ∧ (ℑ‘(log‘𝐴)) ≤ π)))
54	50, 51, 53	mpbir2and 712	. . . . . . . . . 10 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (abs‘(ℑ‘(log‘𝐴))) ≤ π)
55	18, 35	elicc2i 12845	. . . . . . . . . 10 ⊢ ((abs‘(ℑ‘(log‘𝐴))) ∈ (0[,]π) ↔ ((abs‘(ℑ‘(log‘𝐴))) ∈ ℝ ∧ 0 ≤ (abs‘(ℑ‘(log‘𝐴))) ∧ (abs‘(ℑ‘(log‘𝐴))) ≤ π))
56	42, 43, 54, 55	syl3anbrc 1340	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (abs‘(ℑ‘(log‘𝐴))) ∈ (0[,]π))
57		cosord 25222	. . . . . . . . 9 ⊢ (((π / 2) ∈ (0[,]π) ∧ (abs‘(ℑ‘(log‘𝐴))) ∈ (0[,]π)) → ((π / 2) < (abs‘(ℑ‘(log‘𝐴))) ↔ (cos‘(abs‘(ℑ‘(log‘𝐴)))) < (cos‘(π / 2))))
58	40, 56, 57	sylancr 590	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → ((π / 2) < (abs‘(ℑ‘(log‘𝐴))) ↔ (cos‘(abs‘(ℑ‘(log‘𝐴)))) < (cos‘(π / 2))))
59		fveq2 6658	. . . . . . . . . . 11 ⊢ ((abs‘(ℑ‘(log‘𝐴))) = (ℑ‘(log‘𝐴)) → (cos‘(abs‘(ℑ‘(log‘𝐴)))) = (cos‘(ℑ‘(log‘𝐴))))
60	59	a1i 11	. . . . . . . . . 10 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → ((abs‘(ℑ‘(log‘𝐴))) = (ℑ‘(log‘𝐴)) → (cos‘(abs‘(ℑ‘(log‘𝐴)))) = (cos‘(ℑ‘(log‘𝐴)))))
61		cosneg 15548	. . . . . . . . . . . 12 ⊢ ((ℑ‘(log‘𝐴)) ∈ ℂ → (cos‘-(ℑ‘(log‘𝐴))) = (cos‘(ℑ‘(log‘𝐴))))
62	41, 61	syl 17	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (cos‘-(ℑ‘(log‘𝐴))) = (cos‘(ℑ‘(log‘𝐴))))
63		fveqeq2 6667	. . . . . . . . . . 11 ⊢ ((abs‘(ℑ‘(log‘𝐴))) = -(ℑ‘(log‘𝐴)) → ((cos‘(abs‘(ℑ‘(log‘𝐴)))) = (cos‘(ℑ‘(log‘𝐴))) ↔ (cos‘-(ℑ‘(log‘𝐴))) = (cos‘(ℑ‘(log‘𝐴)))))
64	62, 63	syl5ibrcom 250	. . . . . . . . . 10 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → ((abs‘(ℑ‘(log‘𝐴))) = -(ℑ‘(log‘𝐴)) → (cos‘(abs‘(ℑ‘(log‘𝐴)))) = (cos‘(ℑ‘(log‘𝐴)))))
65	3	absord 14823	. . . . . . . . . 10 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → ((abs‘(ℑ‘(log‘𝐴))) = (ℑ‘(log‘𝐴)) ∨ (abs‘(ℑ‘(log‘𝐴))) = -(ℑ‘(log‘𝐴))))
66	60, 64, 65	mpjaod 857	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (cos‘(abs‘(ℑ‘(log‘𝐴)))) = (cos‘(ℑ‘(log‘𝐴))))
67		coshalfpi 25161	. . . . . . . . . 10 ⊢ (cos‘(π / 2)) = 0
68	67	a1i 11	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (cos‘(π / 2)) = 0)
69	66, 68	breq12d 5045	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → ((cos‘(abs‘(ℑ‘(log‘𝐴)))) < (cos‘(π / 2)) ↔ (cos‘(ℑ‘(log‘𝐴))) < 0))
70	58, 69	bitrd 282	. . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → ((π / 2) < (abs‘(ℑ‘(log‘𝐴))) ↔ (cos‘(ℑ‘(log‘𝐴))) < 0))
71	70	notbid 321	. . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (¬ (π / 2) < (abs‘(ℑ‘(log‘𝐴))) ↔ ¬ (cos‘(ℑ‘(log‘𝐴))) < 0))
72		lenlt 10757	. . . . . . 7 ⊢ (((abs‘(ℑ‘(log‘𝐴))) ∈ ℝ ∧ (π / 2) ∈ ℝ) → ((abs‘(ℑ‘(log‘𝐴))) ≤ (π / 2) ↔ ¬ (π / 2) < (abs‘(ℑ‘(log‘𝐴)))))
73	42, 30, 72	sylancl 589	. . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → ((abs‘(ℑ‘(log‘𝐴))) ≤ (π / 2) ↔ ¬ (π / 2) < (abs‘(ℑ‘(log‘𝐴)))))
74	3	recoscld 15545	. . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (cos‘(ℑ‘(log‘𝐴))) ∈ ℝ)
75		lenlt 10757	. . . . . . 7 ⊢ ((0 ∈ ℝ ∧ (cos‘(ℑ‘(log‘𝐴))) ∈ ℝ) → (0 ≤ (cos‘(ℑ‘(log‘𝐴))) ↔ ¬ (cos‘(ℑ‘(log‘𝐴))) < 0))
76	18, 74, 75	sylancr 590	. . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (0 ≤ (cos‘(ℑ‘(log‘𝐴))) ↔ ¬ (cos‘(ℑ‘(log‘𝐴))) < 0))
77	71, 73, 76	3bitr4d 314	. . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → ((abs‘(ℑ‘(log‘𝐴))) ≤ (π / 2) ↔ 0 ≤ (cos‘(ℑ‘(log‘𝐴)))))
78	29, 77	mpbird 260	. . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (abs‘(ℑ‘(log‘𝐴))) ≤ (π / 2))
79		absle 14723	. . . . 5 ⊢ (((ℑ‘(log‘𝐴)) ∈ ℝ ∧ (π / 2) ∈ ℝ) → ((abs‘(ℑ‘(log‘𝐴))) ≤ (π / 2) ↔ (-(π / 2) ≤ (ℑ‘(log‘𝐴)) ∧ (ℑ‘(log‘𝐴)) ≤ (π / 2))))
80	3, 30, 79	sylancl 589	. . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → ((abs‘(ℑ‘(log‘𝐴))) ≤ (π / 2) ↔ (-(π / 2) ≤ (ℑ‘(log‘𝐴)) ∧ (ℑ‘(log‘𝐴)) ≤ (π / 2))))
81	78, 80	mpbid 235	. . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (-(π / 2) ≤ (ℑ‘(log‘𝐴)) ∧ (ℑ‘(log‘𝐴)) ≤ (π / 2)))
82	81	simpld 498	. 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → -(π / 2) ≤ (ℑ‘(log‘𝐴)))
83	81	simprd 499	. 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (ℑ‘(log‘𝐴)) ≤ (π / 2))
84	30	renegcli 10985	. . 3 ⊢ -(π / 2) ∈ ℝ
85	84, 30	elicc2i 12845	. 2 ⊢ ((ℑ‘(log‘𝐴)) ∈ (-(π / 2)[,](π / 2)) ↔ ((ℑ‘(log‘𝐴)) ∈ ℝ ∧ -(π / 2) ≤ (ℑ‘(log‘𝐴)) ∧ (ℑ‘(log‘𝐴)) ≤ (π / 2)))
86	3, 82, 83, 85	syl3anbrc 1340	1 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 0 ≤ (ℜ‘𝐴)) → (ℑ‘(log‘𝐴)) ∈ (-(π / 2)[,](π / 2)))

Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 209   ∧ wa 399   ∧ w3a 1084   = wceq 1538   ∈ wcel 2111   ≠ wne 2951   class class class wbr 5032  ‘cfv 6335  (class class class)co 7150  ℂcc 10573  ℝcr 10574  0cc0 10575  ici 10577   · cmul 10580   < clt 10713   ≤ cle 10714  -cneg 10909   / cdiv 11335  2c2 11729  ℝ⁺crp 12430  [,]cicc 12782  ℜcre 14504  ℑcim 14505  abscabs 14641  expce 15463  cosccos 15466  πcpi 15468  logclog 25245

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 1911  ax-6 1970  ax-7 2015  ax-8 2113  ax-9 2121  ax-10 2142  ax-11 2158  ax-12 2175  ax-ext 2729  ax-rep 5156  ax-sep 5169  ax-nul 5176  ax-pow 5234  ax-pr 5298  ax-un 7459  ax-inf2 9137  ax-cnex 10631  ax-resscn 10632  ax-1cn 10633  ax-icn 10634  ax-addcl 10635  ax-addrcl 10636  ax-mulcl 10637  ax-mulrcl 10638  ax-mulcom 10639  ax-addass 10640  ax-mulass 10641  ax-distr 10642  ax-i2m1 10643  ax-1ne0 10644  ax-1rid 10645  ax-rnegex 10646  ax-rrecex 10647  ax-cnre 10648  ax-pre-lttri 10649  ax-pre-lttrn 10650  ax-pre-ltadd 10651  ax-pre-mulgt0 10652  ax-pre-sup 10653  ax-addf 10654  ax-mulf 10655

This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3or 1085  df-3an 1086  df-tru 1541  df-fal 1551  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2557  df-eu 2588  df-clab 2736  df-cleq 2750  df-clel 2830  df-nfc 2901  df-ne 2952  df-nel 3056  df-ral 3075  df-rex 3076  df-reu 3077  df-rmo 3078  df-rab 3079  df-v 3411  df-sbc 3697  df-csb 3806  df-dif 3861  df-un 3863  df-in 3865  df-ss 3875  df-pss 3877  df-nul 4226  df-if 4421  df-pw 4496  df-sn 4523  df-pr 4525  df-tp 4527  df-op 4529  df-uni 4799  df-int 4839  df-iun 4885  df-iin 4886  df-br 5033  df-opab 5095  df-mpt 5113  df-tr 5139  df-id 5430  df-eprel 5435  df-po 5443  df-so 5444  df-fr 5483  df-se 5484  df-we 5485  df-xp 5530  df-rel 5531  df-cnv 5532  df-co 5533  df-dm 5534  df-rn 5535  df-res 5536  df-ima 5537  df-pred 6126  df-ord 6172  df-on 6173  df-lim 6174  df-suc 6175  df-iota 6294  df-fun 6337  df-fn 6338  df-f 6339  df-f1 6340  df-fo 6341  df-f1o 6342  df-fv 6343  df-isom 6344  df-riota 7108  df-ov 7153  df-oprab 7154  df-mpo 7155  df-of 7405  df-om 7580  df-1st 7693  df-2nd 7694  df-supp 7836  df-wrecs 7957  df-recs 8018  df-rdg 8056  df-1o 8112  df-2o 8113  df-er 8299  df-map 8418  df-pm 8419  df-ixp 8480  df-en 8528  df-dom 8529  df-sdom 8530  df-fin 8531  df-fsupp 8867  df-fi 8908  df-sup 8939  df-inf 8940  df-oi 9007  df-card 9401  df-pnf 10715  df-mnf 10716  df-xr 10717  df-ltxr 10718  df-le 10719  df-sub 10910  df-neg 10911  df-div 11336  df-nn 11675  df-2 11737  df-3 11738  df-4 11739  df-5 11740  df-6 11741  df-7 11742  df-8 11743  df-9 11744  df-n0 11935  df-z 12021  df-dec 12138  df-uz 12283  df-q 12389  df-rp 12431  df-xneg 12548  df-xadd 12549  df-xmul 12550  df-ioo 12783  df-ioc 12784  df-ico 12785  df-icc 12786  df-fz 12940  df-fzo 13083  df-fl 13211  df-mod 13287  df-seq 13419  df-exp 13480  df-fac 13684  df-bc 13713  df-hash 13741  df-shft 14474  df-cj 14506  df-re 14507  df-im 14508  df-sqrt 14642  df-abs 14643  df-limsup 14876  df-clim 14893  df-rlim 14894  df-sum 15091  df-ef 15469  df-sin 15471  df-cos 15472  df-pi 15474  df-struct 16543  df-ndx 16544  df-slot 16545  df-base 16547  df-sets 16548  df-ress 16549  df-plusg 16636  df-mulr 16637  df-starv 16638  df-sca 16639  df-vsca 16640  df-ip 16641  df-tset 16642  df-ple 16643  df-ds 16645  df-unif 16646  df-hom 16647  df-cco 16648  df-rest 16754  df-topn 16755  df-0g 16773  df-gsum 16774  df-topgen 16775  df-pt 16776  df-prds 16779  df-xrs 16833  df-qtop 16838  df-imas 16839  df-xps 16841  df-mre 16915  df-mrc 16916  df-acs 16918  df-mgm 17918  df-sgrp 17967  df-mnd 17978  df-submnd 18023  df-mulg 18292  df-cntz 18514  df-cmn 18975  df-psmet 20158  df-xmet 20159  df-met 20160  df-bl 20161  df-mopn 20162  df-fbas 20163  df-fg 20164  df-cnfld 20167  df-top 21594  df-topon 21611  df-topsp 21633  df-bases 21646  df-cld 21719  df-ntr 21720  df-cls 21721  df-nei 21798  df-lp 21836  df-perf 21837  df-cn 21927  df-cnp 21928  df-haus 22015  df-tx 22262  df-hmeo 22455  df-fil 22546  df-fm 22638  df-flim 22639  df-flf 22640  df-xms 23022  df-ms 23023  df-tms 23024  df-cncf 23579  df-limc 24565  df-dv 24566  df-log 25247

This theorem is referenced by:  logimul  25304  isosctrlem1  25503  asinbnd  25584  isosctrlem1ALT  42013