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4 (* ||A|| A project by Andrea Asperti *)
6 (* ||I|| Developers: *)
7 (* ||T|| The HELM team. *)
8 (* ||A|| http://helm.cs.unibo.it *)
10 (* \ / This file is distributed under the terms of the *)
11 (* v GNU General Public License Version 2 *)
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15 (* This file was automatically generated: do not edit *********************)
19 (* $Id: CPoly_ApZero.v,v 1.3 2004/04/23 10:00:53 lcf Exp $ *)
21 include "algebra/CPoly_Degree.ma".
23 include "algebra/COrdFields2.ma".
25 (*#* * Polynomials apart from zero *)
27 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/distinct1.con" as definition.
30 Implicit Arguments distinct1 [A].
34 Section Poly_Representation
38 ** Representation of polynomials
39 %\begin{convention}% Let [R] be a field, [RX] the ring of polynomials
40 over [R], [a_ : nat->R] with [(distinct1 a_)] and let [f] be a
41 polynomial over [R], [n] a natural with [(degree_le n f)], i.e. [f]
42 has degree at most [n].
47 cic:/CoRN/algebra/CPoly_ApZero/Poly_Representation/R.var
51 cic:/CoRN/algebra/CPoly_ApZero/Poly_Representation/a_.var
55 cic:/CoRN/algebra/CPoly_ApZero/Poly_Representation/distinct_a_.var
59 cic:/CoRN/algebra/CPoly_ApZero/Poly_Representation/f.var
63 cic:/CoRN/algebra/CPoly_ApZero/Poly_Representation/n.var
67 cic:/CoRN/algebra/CPoly_ApZero/Poly_Representation/degree_f.var
73 Notation RX := (cpoly_cring R).
78 include "tactics/Transparent_algebra.ma".
80 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_linear_shifted.con" as lemma.
82 include "tactics/Opaque_algebra.ma".
84 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_linear_factor.con" as lemma.
86 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/zero_poly.con" as lemma.
88 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/identical_poly.con" as lemma.
90 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_01_factor'.con" as definition.
92 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_01_factor'_degree.con" as lemma.
94 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_01_factor'_zero.con" as lemma.
96 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_01_factor'_apzero.con" as lemma.
99 Hint Resolve poly_01_factor'_zero.
102 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_01_factor.con" as definition.
104 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_01_factor_degree.con" as lemma.
106 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_01_factor_zero.con" as lemma.
108 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_01_factor_one.con" as lemma.
111 Hint Resolve poly_01_factor_zero poly_01_factor_one: algebra.
114 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_01.con" as definition.
116 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_01_degree'.con" as lemma.
118 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_01_degree.con" as lemma.
120 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_01_zero.con" as lemma.
122 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_01_one.con" as lemma.
125 Hint Resolve poly_01_zero poly_01_one: algebra.
128 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_representation''.con" as lemma.
130 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_representation'.con" as lemma.
132 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_representation.con" as lemma.
135 Hint Resolve poly_representation: algebra.
138 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/Cpoly_choose_apzero.con" as lemma.
141 End Poly_Representation
145 Section Characteristic_zero
149 If we are in a field of characteristic zero, the previous result can be
154 cic:/CoRN/algebra/CPoly_ApZero/Characteristic_zero/R.var
160 cic:/CoRN/algebra/CPoly_ApZero/Characteristic_zero/H.var
168 Notation RX := (cpoly_cring R).
173 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_apzero.con" as lemma.
176 Also, in this situation polynomials are extensional functions.
179 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/poly_extensional.con" as lemma.
182 End Characteristic_zero
186 ** Polynomials are nonzero on any interval
190 Section Poly_ApZero_Interval
194 cic:/CoRN/algebra/CPoly_ApZero/Poly_ApZero_Interval/R.var
200 Notation RX := (cpoly_cring R).
205 inline procedural "cic:/CoRN/algebra/CPoly_ApZero/Cpoly_apzero_interval.con" as lemma.
208 End Poly_ApZero_Interval