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[helm.git] / helm / software / matita / contribs / CoRN-Decl / ftc / MoreFunctions.ma
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+(**************************************************************************)
+(*       ___                                                              *)
+(*      ||M||                                                             *)
+(*      ||A||       A project by Andrea Asperti                           *)
+(*      ||T||                                                             *)
+(*      ||I||       Developers:                                           *)
+(*      ||T||         The HELM team.                                      *)
+(*      ||A||         http://helm.cs.unibo.it                             *)
+(*      \   /                                                             *)
+(*       \ /        This file is distributed under the terms of the       *)
+(*        v         GNU General Public License Version 2                  *)
+(*                                                                        *)
+(**************************************************************************)
+
+(* This file was automatically generated: do not edit *********************)
+
+set "baseuri" "cic:/matita/CoRN-Decl/ftc/MoreFunctions".
+
+(* $Id: MoreFunctions.v,v 1.5 2004/04/20 22:38:50 hinderer Exp $ *)
+
+(*#* printing FNorm %\ensuremath{\|\cdot\|_{\infty}}% *)
+
+(* INCLUDE
+MoreIntervals
+*)
+
+(* UNEXPORTED
+Opaque Min Max.
+*)
+
+(* UNEXPORTED
+Section Basic_Results.
+*)
+
+(*#* *More about Functions
+
+Here we state all the main results about properties of functions that
+we already proved for compact intervals in the more general setting of
+arbitrary intervals.
+
+%\begin{convention}% Let [I:interval] and [F,F',G,G'] be partial functions.
+%\end{convention}%
+
+**Continuity
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/I.var.
+
+(*#*
+Trivial stuff.
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/Continuous_imp_inc.con.
+
+(*#*
+%\begin{convention}% Assume that [I] is compact and [F] is continuous in [I].
+%\end{convention}%
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/cI.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/F.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/contF.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/continuous_compact.con.
+
+(* begin show *)
+
+inline cic:/CoRN/ftc/MoreFunctions/Hinc.var.
+
+(* end show *)
+
+inline cic:/CoRN/ftc/MoreFunctions/Continuous_I_imp_tb_image.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/FNorm.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/FNorm_bnd_AbsIR.con.
+
+(* UNEXPORTED
+End Basic_Results.
+*)
+
+(* UNEXPORTED
+Hint Resolve Continuous_imp_inc: included.
+*)
+
+(* UNEXPORTED
+Section Other_Results.
+*)
+
+(*#*
+The usual stuff.
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/I.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/F.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/G.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/Continuous_wd.con.
+
+(* begin show *)
+
+inline cic:/CoRN/ftc/MoreFunctions/contF.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/contG.var.
+
+(* end show *)
+
+inline cic:/CoRN/ftc/MoreFunctions/included_imp_Continuous.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Included_imp_Continuous.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Continuous_const.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Continuous_id.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Continuous_plus.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Continuous_inv.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Continuous_minus.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Continuous_mult.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Continuous_nth.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Continuous_scal.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Continuous_abs.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Continuous_recip.con.
+
+(* UNEXPORTED
+End Other_Results.
+*)
+
+(* UNEXPORTED
+Hint Resolve continuous_compact Continuous_const Continuous_id
+  Continuous_plus Continuous_inv Continuous_minus Continuous_mult
+  Continuous_scal Continuous_nth Continuous_recip Continuous_abs: continuous.
+*)
+
+(* UNEXPORTED
+Hint Immediate included_imp_Continuous Included_imp_Continuous: continuous.
+*)
+
+(* UNEXPORTED
+Section Corollaries.
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/I.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/cI.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/F.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/G.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/contF.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/contG.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/Continuous_div.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/FNorm_wd.con.
+
+(* UNEXPORTED
+End Corollaries.
+*)
+
+(* UNEXPORTED
+Hint Resolve Continuous_div: continuous.
+*)
+
+(* UNEXPORTED
+Section Sums.
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/I.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/Continuous_Sumx.con.
+
+(*#*
+%\begin{convention}% Assume [f] is a sequence of continuous functions.
+%\end{convention}%
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/f.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/contF.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/Continuous_Sum0.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Continuous_Sum.con.
+
+(* UNEXPORTED
+End Sums.
+*)
+
+(* UNEXPORTED
+Hint Resolve Continuous_Sum0 Continuous_Sumx Continuous_Sum: continuous.
+*)
+
+(* UNEXPORTED
+Section Basic_Properties.
+*)
+
+(*#* **Derivative
+
+Derivative is not that much different.
+
+%\begin{convention}% From this point on we assume [I] to be proper.
+%\end{convention}%
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/I.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/pI.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/F.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/G.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/H.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_wdl.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_wdr.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_unique.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_imp_inc.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_imp_inc'.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_imp_Continuous.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_imp_Continuous'.con.
+
+(* UNEXPORTED
+End Basic_Properties.
+*)
+
+(* UNEXPORTED
+Hint Immediate Derivative_imp_inc Derivative_imp_inc': included.
+*)
+
+(* UNEXPORTED
+Hint Immediate Derivative_imp_Continuous Derivative_imp_Continuous':
+  continuous.
+*)
+
+(* UNEXPORTED
+Section More_Results.
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/I.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/pI.var.
+
+(*#*
+%\begin{convention}% Assume that [F'] and [G'] are derivatives of [F] and [G], respectively, in [I].
+%\end{convention}%
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/F.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/F'.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/G.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/G'.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/derF.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/derG.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/included_imp_Derivative.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Included_imp_Derivative.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_const.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_id.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_plus.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_inv.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_minus.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_mult.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_scal.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_nth.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_recip.con.
+
+(* UNEXPORTED
+End More_Results.
+*)
+
+(* UNEXPORTED
+Section More_Corollaries.
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/I.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/pI.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/F.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/F'.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/G.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/G'.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/derF.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/derG.var.
+
+(* begin show *)
+
+inline cic:/CoRN/ftc/MoreFunctions/Gbnd.var.
+
+(* end show *)
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_div.con.
+
+(* UNEXPORTED
+End More_Corollaries.
+*)
+
+(* UNEXPORTED
+Section More_Sums.
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/I.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/pI.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_Sumx.con.
+
+(* begin show *)
+
+inline cic:/CoRN/ftc/MoreFunctions/f.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/f'.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/derF.var.
+
+(* end show *)
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_Sum0.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_Sum.con.
+
+(* UNEXPORTED
+End More_Sums.
+*)
+
+(* UNEXPORTED
+Section Diffble_Basic_Properties.
+*)
+
+(*#* **Differentiability
+
+Mutatis mutandis for differentiability.
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/I.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/pI.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_imp_inc.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_imp_Diffble.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_wd.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/F.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/G.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/diffF.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/diffG.var.
+
+(*#*
+%\begin{convention}% Assume [F] and [G] are differentiable in [I].
+%\end{convention}%
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/included_imp_Diffble.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Included_imp_Diffble.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_const.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_id.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_plus.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_inv.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_minus.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_mult.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_nth.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_scal.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_recip.con.
+
+(* UNEXPORTED
+End Diffble_Basic_Properties.
+*)
+
+(* UNEXPORTED
+Hint Immediate Diffble_imp_inc: included.
+*)
+
+(* UNEXPORTED
+Section Diffble_Corollaries.
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/I.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/pI.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/F.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/G.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/diffF.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/diffG.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_div.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_Sum0.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_Sumx.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_Sum.con.
+
+(* UNEXPORTED
+End Diffble_Corollaries.
+*)
+
+(* UNEXPORTED
+Section Nth_Derivative.
+*)
+
+(*#* **Nth Derivative
+
+Higher order derivatives pose more interesting problems.  It turns out that it really becomes necessary to generalize our [n_deriv] operator to any interval.
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/I.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/pI.var.
+
+(* UNEXPORTED
+Section Definitions.
+*)
+
+(*#*
+%\begin{convention}% Let [n:nat], [F:PartIR] and assume that [F] is n-times differentiable in [I].
+%\end{convention}%
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/n.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/F.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/diffF.var.
+
+inline cic:/CoRN/ftc/MoreFunctions/N_Deriv_fun.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/N_Deriv_char
+ (* begin hide *).con.
+
+(* end hide *)
+
+inline cic:/CoRN/ftc/MoreFunctions/N_Deriv_strext.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/N_Deriv_wd.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/N_Deriv.con.
+
+(* UNEXPORTED
+End Definitions.
+*)
+
+(* UNEXPORTED
+Section Basic_Results.
+*)
+
+(*#*
+All the usual results hold.
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_n_wd.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_n_wdr.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_n_wdl.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_n_unique.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_n_imp_Diffble.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_n_imp_Diffble.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/le_imp_Diffble_n.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_n_imp_le.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_n_imp_inc.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_n_imp_Diffble_n.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_n_imp_inc.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_n_imp_inc'.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/included_imp_Derivative_n.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/included_imp_Diffble_n.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Included_imp_Derivative_n.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Included_imp_Diffble_n.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_n_plus.con.
+
+(* UNEXPORTED
+End Basic_Results.
+*)
+
+(* UNEXPORTED
+Section More_Results.
+*)
+
+(*#*
+Some new results hold, too:
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/N_Deriv_Feq.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/N_Deriv_lemma.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/N_Deriv_S.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/N_Deriv_plus.con.
+
+(*#*
+Some useful characterization results.
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_n_O.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_n_Sn.con.
+
+(* UNEXPORTED
+End More_Results.
+*)
+
+(* UNEXPORTED
+Section Derivating_Diffble.
+*)
+
+(*#*
+As a special case we get a differentiation operator%\ldots%#...#
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/F.var.
+
+(* begin show *)
+
+inline cic:/CoRN/ftc/MoreFunctions/diffF.var.
+
+(* end show *)
+
+inline cic:/CoRN/ftc/MoreFunctions/Diffble_imp_Diffble_n.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Deriv.con.
+
+(* UNEXPORTED
+End Derivating_Diffble.
+*)
+
+(* UNEXPORTED
+Section Corollaries.
+*)
+
+(*#*
+%\ldots%#...# for which the expected property also holds.
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/Deriv_lemma.con.
+
+(*#*
+Some more interesting properties.
+*)
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_n_1.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_n_chain.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_n_imp_Continuous.con.
+
+inline cic:/CoRN/ftc/MoreFunctions/Derivative_n_imp_Continuous'.con.
+
+(* UNEXPORTED
+End Corollaries.
+*)
+
+(* UNEXPORTED
+End Nth_Derivative.
+*)
+
+(* UNEXPORTED
+Hint Resolve Derivative_const Derivative_id Derivative_plus Derivative_inv
+  Derivative_minus Derivative_mult Derivative_scal Derivative_nth
+  Derivative_recip Derivative_div Derivative_Sumx Derivative_Sum0
+  Derivative_Sum: derivate.
+*)
+
+(* UNEXPORTED
+Hint Immediate Derivative_n_imp_inc Derivative_n_imp_inc' Diffble_n_imp_inc:
+  included.
+*)
+
+(* UNEXPORTED
+Hint Resolve Deriv_lemma N_Deriv_lemma: derivate.
+*)
+
+(* UNEXPORTED
+Hint Immediate Derivative_n_imp_Continuous Derivative_n_imp_Continuous':
+  continuous.
+*)
+