1 (**************************************************************************)
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 *)
13 (**************************************************************************)
15 (* This file was automatically generated: do not edit *********************)
17 set "baseuri" "cic:/matita/CoRN-Decl/ftc/MoreFunctions".
21 (* $Id: MoreFunctions.v,v 1.5 2004/04/20 22:38:50 hinderer Exp $ *)
23 (*#* printing FNorm %\ensuremath{\|\cdot\|_{\infty}}% *)
25 include "ftc/MoreIntervals.ma".
35 (*#* *More about Functions
37 Here we state all the main results about properties of functions that
38 we already proved for compact intervals in the more general setting of
41 %\begin{convention}% Let [I:interval] and [F,F',G,G'] be partial functions.
47 alias id "I" = "cic:/CoRN/ftc/MoreFunctions/Basic_Results/I.var".
53 inline "cic:/CoRN/ftc/MoreFunctions/Continuous_imp_inc.con".
56 %\begin{convention}% Assume that [I] is compact and [F] is continuous in [I].
60 alias id "cI" = "cic:/CoRN/ftc/MoreFunctions/Basic_Results/cI.var".
62 alias id "F" = "cic:/CoRN/ftc/MoreFunctions/Basic_Results/F.var".
64 alias id "contF" = "cic:/CoRN/ftc/MoreFunctions/Basic_Results/contF.var".
66 inline "cic:/CoRN/ftc/MoreFunctions/continuous_compact.con".
70 alias id "Hinc" = "cic:/CoRN/ftc/MoreFunctions/Basic_Results/Hinc.var".
74 inline "cic:/CoRN/ftc/MoreFunctions/Continuous_I_imp_tb_image.con".
76 inline "cic:/CoRN/ftc/MoreFunctions/FNorm.con".
78 inline "cic:/CoRN/ftc/MoreFunctions/FNorm_bnd_AbsIR.con".
85 Hint Resolve Continuous_imp_inc: included.
96 alias id "I" = "cic:/CoRN/ftc/MoreFunctions/Other_Results/I.var".
98 alias id "F" = "cic:/CoRN/ftc/MoreFunctions/Other_Results/F.var".
100 alias id "G" = "cic:/CoRN/ftc/MoreFunctions/Other_Results/G.var".
102 inline "cic:/CoRN/ftc/MoreFunctions/Continuous_wd.con".
106 alias id "contF" = "cic:/CoRN/ftc/MoreFunctions/Other_Results/contF.var".
108 alias id "contG" = "cic:/CoRN/ftc/MoreFunctions/Other_Results/contG.var".
112 inline "cic:/CoRN/ftc/MoreFunctions/included_imp_Continuous.con".
114 inline "cic:/CoRN/ftc/MoreFunctions/Included_imp_Continuous.con".
116 inline "cic:/CoRN/ftc/MoreFunctions/Continuous_const.con".
118 inline "cic:/CoRN/ftc/MoreFunctions/Continuous_id.con".
120 inline "cic:/CoRN/ftc/MoreFunctions/Continuous_plus.con".
122 inline "cic:/CoRN/ftc/MoreFunctions/Continuous_inv.con".
124 inline "cic:/CoRN/ftc/MoreFunctions/Continuous_minus.con".
126 inline "cic:/CoRN/ftc/MoreFunctions/Continuous_mult.con".
128 inline "cic:/CoRN/ftc/MoreFunctions/Continuous_nth.con".
130 inline "cic:/CoRN/ftc/MoreFunctions/Continuous_scal.con".
132 inline "cic:/CoRN/ftc/MoreFunctions/Continuous_abs.con".
134 inline "cic:/CoRN/ftc/MoreFunctions/Continuous_recip.con".
141 Hint Resolve continuous_compact Continuous_const Continuous_id
142 Continuous_plus Continuous_inv Continuous_minus Continuous_mult
143 Continuous_scal Continuous_nth Continuous_recip Continuous_abs: continuous.
147 Hint Immediate included_imp_Continuous Included_imp_Continuous: continuous.
154 alias id "I" = "cic:/CoRN/ftc/MoreFunctions/Corollaries/I.var".
156 alias id "cI" = "cic:/CoRN/ftc/MoreFunctions/Corollaries/cI.var".
158 alias id "F" = "cic:/CoRN/ftc/MoreFunctions/Corollaries/F.var".
160 alias id "G" = "cic:/CoRN/ftc/MoreFunctions/Corollaries/G.var".
162 alias id "contF" = "cic:/CoRN/ftc/MoreFunctions/Corollaries/contF.var".
164 alias id "contG" = "cic:/CoRN/ftc/MoreFunctions/Corollaries/contG.var".
166 inline "cic:/CoRN/ftc/MoreFunctions/Continuous_div.con".
168 inline "cic:/CoRN/ftc/MoreFunctions/FNorm_wd.con".
175 Hint Resolve Continuous_div: continuous.
182 alias id "I" = "cic:/CoRN/ftc/MoreFunctions/Sums/I.var".
184 inline "cic:/CoRN/ftc/MoreFunctions/Continuous_Sumx.con".
187 %\begin{convention}% Assume [f] is a sequence of continuous functions.
191 alias id "f" = "cic:/CoRN/ftc/MoreFunctions/Sums/f.var".
193 alias id "contF" = "cic:/CoRN/ftc/MoreFunctions/Sums/contF.var".
195 inline "cic:/CoRN/ftc/MoreFunctions/Continuous_Sum0.con".
197 inline "cic:/CoRN/ftc/MoreFunctions/Continuous_Sum.con".
204 Hint Resolve Continuous_Sum0 Continuous_Sumx Continuous_Sum: continuous.
208 Section Basic_Properties
213 Derivative is not that much different.
215 %\begin{convention}% From this point on we assume [I] to be proper.
219 alias id "I" = "cic:/CoRN/ftc/MoreFunctions/Basic_Properties/I.var".
221 alias id "pI" = "cic:/CoRN/ftc/MoreFunctions/Basic_Properties/pI.var".
223 alias id "F" = "cic:/CoRN/ftc/MoreFunctions/Basic_Properties/F.var".
225 alias id "G" = "cic:/CoRN/ftc/MoreFunctions/Basic_Properties/G.var".
227 alias id "H" = "cic:/CoRN/ftc/MoreFunctions/Basic_Properties/H.var".
229 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_wdl.con".
231 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_wdr.con".
233 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_unique.con".
235 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_imp_inc.con".
237 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_imp_inc'.con".
239 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_imp_Continuous.con".
241 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_imp_Continuous'.con".
248 Hint Immediate Derivative_imp_inc Derivative_imp_inc': included.
252 Hint Immediate Derivative_imp_Continuous Derivative_imp_Continuous':
260 alias id "I" = "cic:/CoRN/ftc/MoreFunctions/More_Results/I.var".
262 alias id "pI" = "cic:/CoRN/ftc/MoreFunctions/More_Results/pI.var".
265 %\begin{convention}% Assume that [F'] and [G'] are derivatives of [F] and [G], respectively, in [I].
269 alias id "F" = "cic:/CoRN/ftc/MoreFunctions/More_Results/F.var".
271 alias id "F'" = "cic:/CoRN/ftc/MoreFunctions/More_Results/F'.var".
273 alias id "G" = "cic:/CoRN/ftc/MoreFunctions/More_Results/G.var".
275 alias id "G'" = "cic:/CoRN/ftc/MoreFunctions/More_Results/G'.var".
277 alias id "derF" = "cic:/CoRN/ftc/MoreFunctions/More_Results/derF.var".
279 alias id "derG" = "cic:/CoRN/ftc/MoreFunctions/More_Results/derG.var".
281 inline "cic:/CoRN/ftc/MoreFunctions/included_imp_Derivative.con".
283 inline "cic:/CoRN/ftc/MoreFunctions/Included_imp_Derivative.con".
285 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_const.con".
287 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_id.con".
289 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_plus.con".
291 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_inv.con".
293 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_minus.con".
295 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_mult.con".
297 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_scal.con".
299 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_nth.con".
301 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_recip.con".
308 Section More_Corollaries
311 alias id "I" = "cic:/CoRN/ftc/MoreFunctions/More_Corollaries/I.var".
313 alias id "pI" = "cic:/CoRN/ftc/MoreFunctions/More_Corollaries/pI.var".
315 alias id "F" = "cic:/CoRN/ftc/MoreFunctions/More_Corollaries/F.var".
317 alias id "F'" = "cic:/CoRN/ftc/MoreFunctions/More_Corollaries/F'.var".
319 alias id "G" = "cic:/CoRN/ftc/MoreFunctions/More_Corollaries/G.var".
321 alias id "G'" = "cic:/CoRN/ftc/MoreFunctions/More_Corollaries/G'.var".
323 alias id "derF" = "cic:/CoRN/ftc/MoreFunctions/More_Corollaries/derF.var".
325 alias id "derG" = "cic:/CoRN/ftc/MoreFunctions/More_Corollaries/derG.var".
329 alias id "Gbnd" = "cic:/CoRN/ftc/MoreFunctions/More_Corollaries/Gbnd.var".
333 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_div.con".
343 alias id "I" = "cic:/CoRN/ftc/MoreFunctions/More_Sums/I.var".
345 alias id "pI" = "cic:/CoRN/ftc/MoreFunctions/More_Sums/pI.var".
347 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_Sumx.con".
351 alias id "f" = "cic:/CoRN/ftc/MoreFunctions/More_Sums/f.var".
353 alias id "f'" = "cic:/CoRN/ftc/MoreFunctions/More_Sums/f'.var".
355 alias id "derF" = "cic:/CoRN/ftc/MoreFunctions/More_Sums/derF.var".
359 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_Sum0.con".
361 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_Sum.con".
368 Section Diffble_Basic_Properties
371 (*#* **Differentiability
373 Mutatis mutandis for differentiability.
376 alias id "I" = "cic:/CoRN/ftc/MoreFunctions/Diffble_Basic_Properties/I.var".
378 alias id "pI" = "cic:/CoRN/ftc/MoreFunctions/Diffble_Basic_Properties/pI.var".
380 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_imp_inc.con".
382 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_imp_Diffble.con".
384 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_wd.con".
386 alias id "F" = "cic:/CoRN/ftc/MoreFunctions/Diffble_Basic_Properties/F.var".
388 alias id "G" = "cic:/CoRN/ftc/MoreFunctions/Diffble_Basic_Properties/G.var".
390 alias id "diffF" = "cic:/CoRN/ftc/MoreFunctions/Diffble_Basic_Properties/diffF.var".
392 alias id "diffG" = "cic:/CoRN/ftc/MoreFunctions/Diffble_Basic_Properties/diffG.var".
395 %\begin{convention}% Assume [F] and [G] are differentiable in [I].
399 inline "cic:/CoRN/ftc/MoreFunctions/included_imp_Diffble.con".
401 inline "cic:/CoRN/ftc/MoreFunctions/Included_imp_Diffble.con".
403 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_const.con".
405 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_id.con".
407 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_plus.con".
409 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_inv.con".
411 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_minus.con".
413 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_mult.con".
415 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_nth.con".
417 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_scal.con".
419 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_recip.con".
422 End Diffble_Basic_Properties
426 Hint Immediate Diffble_imp_inc: included.
430 Section Diffble_Corollaries
433 alias id "I" = "cic:/CoRN/ftc/MoreFunctions/Diffble_Corollaries/I.var".
435 alias id "pI" = "cic:/CoRN/ftc/MoreFunctions/Diffble_Corollaries/pI.var".
437 alias id "F" = "cic:/CoRN/ftc/MoreFunctions/Diffble_Corollaries/F.var".
439 alias id "G" = "cic:/CoRN/ftc/MoreFunctions/Diffble_Corollaries/G.var".
441 alias id "diffF" = "cic:/CoRN/ftc/MoreFunctions/Diffble_Corollaries/diffF.var".
443 alias id "diffG" = "cic:/CoRN/ftc/MoreFunctions/Diffble_Corollaries/diffG.var".
445 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_div.con".
447 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_Sum0.con".
449 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_Sumx.con".
451 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_Sum.con".
454 End Diffble_Corollaries
458 Section Nth_Derivative
461 (*#* **Nth Derivative
463 Higher order derivatives pose more interesting problems. It turns out that it really becomes necessary to generalize our [n_deriv] operator to any interval.
466 alias id "I" = "cic:/CoRN/ftc/MoreFunctions/Nth_Derivative/I.var".
468 alias id "pI" = "cic:/CoRN/ftc/MoreFunctions/Nth_Derivative/pI.var".
475 %\begin{convention}% Let [n:nat], [F:PartIR] and assume that [F] is n-times differentiable in [I].
479 alias id "n" = "cic:/CoRN/ftc/MoreFunctions/Nth_Derivative/Definitions/n.var".
481 alias id "F" = "cic:/CoRN/ftc/MoreFunctions/Nth_Derivative/Definitions/F.var".
483 alias id "diffF" = "cic:/CoRN/ftc/MoreFunctions/Nth_Derivative/Definitions/diffF.var".
485 inline "cic:/CoRN/ftc/MoreFunctions/N_Deriv_fun.con".
487 inline "cic:/CoRN/ftc/MoreFunctions/N_Deriv_char
488 (* begin hide *).con".
492 inline "cic:/CoRN/ftc/MoreFunctions/N_Deriv_strext.con".
494 inline "cic:/CoRN/ftc/MoreFunctions/N_Deriv_wd.con".
496 inline "cic:/CoRN/ftc/MoreFunctions/N_Deriv.con".
503 Section Basic_Results
507 All the usual results hold.
510 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_n_wd.con".
512 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_n_wdr.con".
514 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_n_wdl.con".
516 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_n_unique.con".
518 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_n_imp_Diffble.con".
520 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_n_imp_Diffble.con".
522 inline "cic:/CoRN/ftc/MoreFunctions/le_imp_Diffble_n.con".
524 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_n_imp_le.con".
526 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_n_imp_inc.con".
528 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_n_imp_Diffble_n.con".
530 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_n_imp_inc.con".
532 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_n_imp_inc'.con".
534 inline "cic:/CoRN/ftc/MoreFunctions/included_imp_Derivative_n.con".
536 inline "cic:/CoRN/ftc/MoreFunctions/included_imp_Diffble_n.con".
538 inline "cic:/CoRN/ftc/MoreFunctions/Included_imp_Derivative_n.con".
540 inline "cic:/CoRN/ftc/MoreFunctions/Included_imp_Diffble_n.con".
542 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_n_plus.con".
553 Some new results hold, too:
556 inline "cic:/CoRN/ftc/MoreFunctions/N_Deriv_Feq.con".
558 inline "cic:/CoRN/ftc/MoreFunctions/N_Deriv_lemma.con".
560 inline "cic:/CoRN/ftc/MoreFunctions/N_Deriv_S.con".
562 inline "cic:/CoRN/ftc/MoreFunctions/N_Deriv_plus.con".
565 Some useful characterization results.
568 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_n_O.con".
570 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_n_Sn.con".
577 Section Derivating_Diffble
581 As a special case we get a differentiation operator%\ldots%#...#
584 alias id "F" = "cic:/CoRN/ftc/MoreFunctions/Nth_Derivative/Derivating_Diffble/F.var".
588 alias id "diffF" = "cic:/CoRN/ftc/MoreFunctions/Nth_Derivative/Derivating_Diffble/diffF.var".
592 inline "cic:/CoRN/ftc/MoreFunctions/Diffble_imp_Diffble_n.con".
594 inline "cic:/CoRN/ftc/MoreFunctions/Deriv.con".
597 End Derivating_Diffble
605 %\ldots%#...# for which the expected property also holds.
608 inline "cic:/CoRN/ftc/MoreFunctions/Deriv_lemma.con".
611 Some more interesting properties.
614 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_n_1.con".
616 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_n_chain.con".
618 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_n_imp_Continuous.con".
620 inline "cic:/CoRN/ftc/MoreFunctions/Derivative_n_imp_Continuous'.con".
631 Hint Resolve Derivative_const Derivative_id Derivative_plus Derivative_inv
632 Derivative_minus Derivative_mult Derivative_scal Derivative_nth
633 Derivative_recip Derivative_div Derivative_Sumx Derivative_Sum0
634 Derivative_Sum: derivate.
638 Hint Immediate Derivative_n_imp_inc Derivative_n_imp_inc' Diffble_n_imp_inc:
643 Hint Resolve Deriv_lemma N_Deriv_lemma: derivate.
647 Hint Immediate Derivative_n_imp_Continuous Derivative_n_imp_Continuous':