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1 (**************************************************************************)
2 (*       ___                                                              *)
3 (*      ||M||                                                             *)
4 (*      ||A||       A project by Andrea Asperti                           *)
5 (*      ||T||                                                             *)
6 (*      ||I||       Developers:                                           *)
7 (*      ||T||         The HELM team.                                      *)
8 (*      ||A||         http://helm.cs.unibo.it                             *)
9 (*      \   /                                                             *)
10 (*       \ /        This file is distributed under the terms of the       *)
11 (*        v         GNU General Public License Version 2                  *)
12 (*                                                                        *)
13 (**************************************************************************)
14
15 (* This file was automatically generated: do not edit *********************)
16
17 set "baseuri" "cic:/matita/CoRN-Decl/transc/TrigMon".
18
19 include "CoRN.ma".
20
21 (* $Id: TrigMon.v,v 1.9 2004/04/23 10:01:08 lcf Exp $ *)
22
23 include "transc/Pi.ma".
24
25 (* UNEXPORTED
26 Opaque Sine Cosine.
27 *)
28
29 (*#*
30 Sign properties: cosine is positive in
31 $(-\frac{\pi}2,\frac{\pi}2)$#(-π/2,π/2)#, sine in
32 $(0,\pi)$#(0,π)# and tangent in $(0,\frac{\pi}2)$#0,π/2)#.
33 *)
34
35 inline "cic:/CoRN/transc/TrigMon/Cos_pos.con".
36
37 inline "cic:/CoRN/transc/TrigMon/Sin_pos.con".
38
39 inline "cic:/CoRN/transc/TrigMon/Tan_pos.con".
40
41 inline "cic:/CoRN/transc/TrigMon/Cos_nonneg.con".
42
43 inline "cic:/CoRN/transc/TrigMon/Sin_nonneg.con".
44
45 (*#* Consequences. *)
46
47 inline "cic:/CoRN/transc/TrigMon/Abs_Sin_less_One.con".
48
49 inline "cic:/CoRN/transc/TrigMon/Abs_Cos_less_One.con".
50
51 (*#*
52 Sine is (strictly) increasing in [[ [--]Pi[/]Two,Pi[/]Two]]; cosine
53 is (strictly) decreasing in [[Zero,Pi]].
54 *)
55
56 inline "cic:/CoRN/transc/TrigMon/Sin_resp_leEq.con".
57
58 inline "cic:/CoRN/transc/TrigMon/Cos_resp_leEq.con".
59
60 (* begin hide *)
61
62 inline "cic:/CoRN/transc/TrigMon/Cos_resp_less_aux.con".
63
64 inline "cic:/CoRN/transc/TrigMon/Cos_resp_less_aux'.con".
65
66 (* end hide *)
67
68 inline "cic:/CoRN/transc/TrigMon/Cos_resp_less.con".
69
70 inline "cic:/CoRN/transc/TrigMon/Sin_resp_less.con".
71
72 (* UNEXPORTED
73 Section Tangent
74 *)
75
76 (*#* **Derivative of Tangent
77
78 Finally, two formulas for the derivative of the tangent function and
79 monotonicity properties.
80 *)
81
82 inline "cic:/CoRN/transc/TrigMon/bnd_Cos.con".
83
84 (* UNEXPORTED
85 Opaque Sine Cosine.
86 *)
87
88 inline "cic:/CoRN/transc/TrigMon/Derivative_Tan_1.con".
89
90 inline "cic:/CoRN/transc/TrigMon/Derivative_Tan_2.con".
91
92 inline "cic:/CoRN/transc/TrigMon/Tan_resp_less.con".
93
94 inline "cic:/CoRN/transc/TrigMon/Tan_resp_leEq.con".
95
96 (* UNEXPORTED
97 End Tangent
98 *)
99
100 (* UNEXPORTED
101 Hint Resolve Derivative_Tan_1 Derivative_Tan_2: derivate.
102 *)
103