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2 (*       ___                                                              *)
3 (*      ||M||                                                             *)
4 (*      ||A||       A project by Andrea Asperti                           *)
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11 (*        v         GNU General Public License Version 2                  *)
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13 (**************************************************************************)
14
15 (* This file was automatically generated: do not edit *********************)
16
17 set "baseuri" "cic:/matita/CoRN-Decl/reals/Cauchy_CReals".
18
19 include "CoRN.ma".
20
21 (* $Id: Cauchy_CReals.v,v 1.5 2004/04/23 10:01:04 lcf Exp $ *)
22
23 include "algebra/Cauchy_COF.ma".
24
25 include "reals/CReals.ma".
26
27 (* UNEXPORTED
28 Section R_CReals
29 *)
30
31 (*#* * The Real Number Structure
32
33 We will now apply our Cauchy sequence construction to an archimedean ordered field in order to obtain a model of the real numbers.
34
35 ** Injection of [Q]
36
37 We start by showing how to inject the rational numbers in the field of Cauchy sequences; this embedding preserves the algebraic operations.
38
39 %\begin{convention}% Let [F] be an ordered field.
40 %\end{convention}%
41 *)
42
43 alias id "F" = "cic:/CoRN/reals/Cauchy_CReals/R_CReals/F.var".
44
45 (* NOTATION
46 Notation "'R_COrdField''" := (R_COrdField F).
47 *)
48
49 inline "cic:/CoRN/reals/Cauchy_CReals/inject_Q.con".
50
51 inline "cic:/CoRN/reals/Cauchy_CReals/ing_eq.con".
52
53 inline "cic:/CoRN/reals/Cauchy_CReals/ing_plus.con".
54
55 inline "cic:/CoRN/reals/Cauchy_CReals/ing_min.con".
56
57 inline "cic:/CoRN/reals/Cauchy_CReals/ing_lt.con".
58
59 inline "cic:/CoRN/reals/Cauchy_CReals/ing_ap.con".
60
61 inline "cic:/CoRN/reals/Cauchy_CReals/ing_cancel_eq.con".
62
63 inline "cic:/CoRN/reals/Cauchy_CReals/ing_cancel_less.con".
64
65 inline "cic:/CoRN/reals/Cauchy_CReals/ing_le.con".
66
67 inline "cic:/CoRN/reals/Cauchy_CReals/ing_cancel_leEq.con".
68
69 inline "cic:/CoRN/reals/Cauchy_CReals/ing_cancel_AbsSmall.con".
70
71 inline "cic:/CoRN/reals/Cauchy_CReals/ing_One.con".
72
73 inline "cic:/CoRN/reals/Cauchy_CReals/ing_nring'.con".
74
75 inline "cic:/CoRN/reals/Cauchy_CReals/ing_nring.con".
76
77 inline "cic:/CoRN/reals/Cauchy_CReals/ing_mult.con".
78
79 (* UNEXPORTED
80 Opaque R_COrdField.
81 *)
82
83 inline "cic:/CoRN/reals/Cauchy_CReals/ing_div_three.con".
84
85 (* UNEXPORTED
86 Transparent R_COrdField.
87 *)
88
89 inline "cic:/CoRN/reals/Cauchy_CReals/ing_n.con".
90
91 inline "cic:/CoRN/reals/Cauchy_CReals/expand_Q_R.con".
92
93 inline "cic:/CoRN/reals/Cauchy_CReals/conv_modulus.con".
94
95 inline "cic:/CoRN/reals/Cauchy_CReals/R_CReals/T.con" "R_CReals__".
96
97 (*#* We now assume our original field is archimedean and prove that the
98 resulting one is, too.
99 *)
100
101 alias id "F_is_archemaedian" = "cic:/CoRN/reals/Cauchy_CReals/R_CReals/F_is_archemaedian.var".
102
103 inline "cic:/CoRN/reals/Cauchy_CReals/R_is_archemaedian.con".
104
105 (* begin hide *)
106
107 inline "cic:/CoRN/reals/Cauchy_CReals/R_CReals/PT.con" "R_CReals__".
108
109 (* end hide *)
110
111 inline "cic:/CoRN/reals/Cauchy_CReals/modulus_property.con".
112
113 inline "cic:/CoRN/reals/Cauchy_CReals/modulus_property_2.con".
114
115 inline "cic:/CoRN/reals/Cauchy_CReals/expand_Q_R_2.con".
116
117 inline "cic:/CoRN/reals/Cauchy_CReals/CS_seq_diagonal.con".
118
119 (*#* ** Cauchy Completeness
120 We can also define a limit operator.
121 *)
122
123 inline "cic:/CoRN/reals/Cauchy_CReals/Q_dense_in_R.con".
124
125 inline "cic:/CoRN/reals/Cauchy_CReals/LimR_CauchySeq.con".
126
127 inline "cic:/CoRN/reals/Cauchy_CReals/R_is_complete.con".
128
129 inline "cic:/CoRN/reals/Cauchy_CReals/R_is_CReals.con".
130
131 inline "cic:/CoRN/reals/Cauchy_CReals/R_as_CReals.con".
132
133 (* UNEXPORTED
134 End R_CReals
135 *)
136