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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 include "CoRN.ma".
18
19 (* $Id: CSumsReals.v,v 1.5 2004/04/23 10:01:04 lcf Exp $ *)
20
21 include "reals/CReals1.ma".
22
23 (*#* * Sums over Reals
24
25 %\begin{convention}% Let [c] be a real.
26 %\end{convention}%
27
28 Here we prove that
29 $\Sigma_{m\leq i \leq n}~c^k = \frac{c^{n+1}-c^m}{c-1}.$
30 #sum_(m≤ i ≤ n) c^k = frac (c^(n+1) -c^m) (c-1)#
31 *)
32
33 (* UNEXPORTED
34 Section Sums_over_Reals
35 *)
36
37 (* UNEXPORTED
38 cic:/CoRN/reals/CSumsReals/Sums_over_Reals/c.var
39 *)
40
41 inline procedural "cic:/CoRN/reals/CSumsReals/Sum0_c_exp.con" as lemma.
42
43 (* UNEXPORTED
44 Hint Resolve Sum0_c_exp.
45 *)
46
47 inline procedural "cic:/CoRN/reals/CSumsReals/Sum_c_exp.con" as lemma.
48
49 (* UNEXPORTED
50 Hint Resolve Sum_c_exp.
51 *)
52
53 (*#* The following formulation is often more useful if [c [<] 1]. *)
54
55 inline procedural "cic:/CoRN/reals/CSumsReals/Sum_c_exp'.con" as lemma.
56
57 (* UNEXPORTED
58 Hint Resolve Sum_c_exp'.
59 *)
60
61 (* UNEXPORTED
62 End Sums_over_Reals
63 *)
64
65 (* UNEXPORTED
66 Hint Resolve Sum0_c_exp Sum_c_exp Sum_c_exp': algebra.
67 *)
68
69 inline procedural "cic:/CoRN/reals/CSumsReals/diff_is_Sum0.con" as lemma.
70
71 inline procedural "cic:/CoRN/reals/CSumsReals/diff_is_sum.con" as lemma.
72
73 inline procedural "cic:/CoRN/reals/CSumsReals/Sum0_pres_less.con" as lemma.
74
75 inline procedural "cic:/CoRN/reals/CSumsReals/Sum_pres_less.con" as lemma.
76
77 inline procedural "cic:/CoRN/reals/CSumsReals/Sum_pres_leEq.con" as lemma.
78
79 inline procedural "cic:/CoRN/reals/CSumsReals/Sum0_comm_scal.con" as lemma.
80
81 (* UNEXPORTED
82 Hint Resolve Sum0_comm_scal: algebra.
83 *)
84
85 inline procedural "cic:/CoRN/reals/CSumsReals/Sum_comm_scal.con" as lemma.
86
87 inline procedural "cic:/CoRN/reals/CSumsReals/Sum0_comm_scal'.con" as lemma.
88
89 inline procedural "cic:/CoRN/reals/CSumsReals/Sum_comm_scal'.con" as lemma.
90
91 inline procedural "cic:/CoRN/reals/CSumsReals/Sumx_comm_scal'.con" as lemma.
92
93 inline procedural "cic:/CoRN/reals/CSumsReals/Sum2_comm_scal'.con" as lemma.
94