• Prolog can process both ground and non-ground data • A Prolog program can do useful things with a data structure even when that structure is partially unknown. �k��70 This means that you can control the Prolog system by sitting at a terminal typing in commands which the system can execute more or less immediately, giving replies to you directly. �]`���J��@ f���{n5a�O ՖդHԺ�)$� ��`b*��j��R*�s�Kw�ph��G*'wI$�y����s�>"��EU�R�mrg�G��U %PDF-1.3 and Prolog to try another branch in the recursion tree. All examples have been tested using SWI-Prolog (www.swi-prolog.org) and can be ex-pected to work equally well with most other Prolog systems. %�쏢 0000002261 00000 n ���N*���1z���Q)��ȷv6��K�FP��cٗԇUW֢Gt���f0�>,�E f�?kLJ%l# ��P·���&SH�3���|U���럵�����G��4,�5a�B��� &c!߇EU�R*�a��Q���wl��v�6��S��S�MQ���{oGn�+u'+�P덨�r����mt�5uw �gR��9��]y--��3��.0�����ww�~@���k�\����3�ozʹ�QԄa 3.1 Starting Prolog Prolog is an interactive programming language. 0000002976 00000 n Very nice, though faster ones are for sale (e.g., SICSTUS Prolog). More precisely, Prolog uses a subset of predicate logic 2 0 obj H�. That is, it 0000015296 00000 n %PDF-1.4 H�b```"u�c�����,0�b ޔ�J5�)>G�{��.���8�!���Τ,�wR>�2/E-�m��(���"y����2�! 0000001948 00000 n x���As7���+�H���jw�U�IQ����r�8P�C���G��H�`ဍM�l��h��������9�w������4_��W��0��5(ٯ��v|��~�?���������n�P�c싴������Nۑj�!��;���c��=k�;��cY+Z��5]NqM�EKr�Pͷ��ץ�b�[�|C�>U����_ڢt�������������v5a�B��v����}�=�Pk�(J0��Y;iO��D�$���U��QԄa 0000004787 00000 n In this respect it is like BASIC or LISP, but unlike C or Java. 0000013372 00000 n Prolog A Tutorial Introduction James Lu Jerud J. Mead Computer Science Department Bucknell University Lewisburg, PA 17387 1 1.1 Fatos Fatos servem para estabelecer um relacionamento existente entre objetos de um determinado contexto de discurso. An Introduction to Prolog A.1 A Short Background Prolog was designed in the 1970s by Alain Colmerauer and a team of researchers with the idea – new at that time – that it was possible to use log ic to represent knowl-edge and to write programs. The book Applications of Prolog is the second of two volumes by the author on the programming language Prolog and its applications. 1 0 obj 0000003357 00000 n 0000020507 00000 n Linguagem Prolog 3 Capítulo 1 Elementos Básicos Os elementos básicos da linguagem Prolog são herdados da lógica de predi-cados. Free Prolog ebook “Applications of Prolog” by Attila Csenki in pdf format. x��ܡ��`��9'�ɲ!|�`F�2Vl�I��Y�1��YX� �����`�w¹�9�o�RJ嫩��ڱ����������������������}���P���f�ZA�8N�$i��^/M���F���x. Prolog is a general purpose logic programming language associated with artificial intelligence and computational linguistics. 20 SIMPLE TERMS numbers 3 5.6 -10 -6.31 atoms apple tom x2 'Hello there' [ ] variables X Y31 Chris Left_Subtree Person _35 _ … 0000000731 00000 n stream To run Prolog, you can just run ECLiPSe! <>>>stream <>>>stream %���� <> 157 0 obj << /Linearized 1 /O 159 /H [ 807 1164 ] /L 240982 /E 24229 /N 40 /T 237723 >> endobj xref 157 19 0000000016 00000 n �CT��üVa\������bB]�� g �Bx..3))����h�������̫`uj@*�%@s�����E�>�� ^���OB�udH����q�����ww����� �f|��� ?CD�����Q&VM��5'J���湲f�p�Y�@�u���O ���V endstream endobj 175 0 obj 1053 endobj 159 0 obj << /Type /Page /Parent 150 0 R /Resources 160 0 R /Contents 163 0 R /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 >> endobj 160 0 obj << /ProcSet [ /PDF /Text ] /Font << /F7 161 0 R /F11 169 0 R /F12 164 0 R >> /ExtGState << /GS1 171 0 R >> >> endobj 161 0 obj << /Type /Font /Subtype /Type1 /FirstChar 45 /LastChar 240 /Widths [ 375 313 0 0 563 563 563 563 563 563 563 563 0 0 0 0 0 0 0 0 850 800 813 862 738 707 0 880 419 581 0 676 1067 0 845 769 845 839 625 782 865 0 0 0 0 0 0 0 0 0 0 0 547 625 500 625 513 0 563 625 313 0 594 313 938 625 563 625 0 459 444 438 625 594 813 594 594 500 0 0 0 0 375 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 375 0 0 375 0 375 375 0 0 375 375 375 375 375 0 0 375 0 0 0 0 0 375 0 375 375 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 375 0 0 0 0 0 0 625 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 375 ] /Encoding /MacRomanEncoding /BaseFont /DCFEFI+CMBX12 /FontDescriptor 162 0 R >> endobj 162 0 obj << /Type /FontDescriptor /Ascent 698 /CapHeight 681 /Descent -202 /Flags 262178 /FontBBox [ -53 -251 1139 750 ] /FontName /DCFEFI+CMBX12 /ItalicAngle 0 /StemV 109 /XHeight 447 /CharSet (/k/O/fi/B/v/two/m/b/Q/C/w/three/o/H/c/R/D/y/n/l/p/e/four/P/S/z/hyphen/fi\ ve/U/T/I/x/period/r/six/h/J/d/F/s/seven/i/a/L/E/t/eight/g/M/A/u/one) /FontFile3 172 0 R >> endobj 163 0 obj << /Length 436 /Filter /FlateDecode >> stream Por exemplo, num contexto bíblico, x��ۿk�P��y:Uۈ����HA��%�nWG���� ��.��Ci�1�P�$N�""\�(J[ R)���Moy�r�|'�/72�S�5�O/�:,���B��>,�O�BEQ8��8N���4���FE�d2�M�4~��sz��պP{*^���d29���n���k6�>�O�eI����p8�����ς ���;�������.�p8\�Tnnn^^^A�B�b���,B����l6[�V'''��J��㳳��r���t�e������X!cL�A�>[����A��d�Z�ө��"��R�r��NOO��d��J%5v�;�ߤ��>CY�)������6�H��i��7��z��_r�������pȲl2�>>>��n�V��B��4�8��B� �����d2�f��\���:��|>?�L� c��yY���WWW�f��rI����*��i]�k��ZN��wH)���F��p�^��j�l6���W0����M���>,���B��>,���B��>,���B��>,���B��>,���B��>,���B��>,��;��ÿCZ.�;���h���|���~����n�{}}-���Ã�b�f���z�Nq�݂ �����f�N��$I:�>��|X��a!|X�o(r��endstream Nevertheless, a short chapter on the logic foundations of Prolog is included as well. 0000004488 00000 n … 4g�I��S]S �8=�m���Z甒8m���KEK���͚�䪧��[gX��� v�+6yɴ�L�uJ���,W����^��z�).�f�Iǵ\v-�i�^�Ho��FQ�S�5O94�z�aw��&3�Yw�\mWi��8�$�%W&,~�h��S�*�/d�55�+=�V��� ˯��r���^Z:�ځ�Z�I`���U�`�j8d�j6�ʤEz��U#}�Lb��Y��1��l��B���/����F�`��RzqTĠ�î�R�Q�N�U�ֺ]fs����H]��l�Q��S�"ϺN�]ȵ�6X{YeR�U�C�+6��e�r���Q��+N]��_��ZB��� O�uŚ�T��2��:�D��Kg�ĕӦ^�?m绍��iu�,b�r}���S���"W~`̞X�[>y'��Y��U:0��et@�U�f��h s�T\\\*: �B@� �bҀ �w@43 8 0 obj 0000013951 00000 n ���JjK5�zSԺ�i�|�-�������)*��Q,w9���;_��|��=~�;�ԗ\E˾;SH��g�x�|w>U�����qϷ����*�ھ P$J0�� ��&�'߷U��8�����|a@�y\��|�Xa�Br�� &'ߝOUEc;����j��m �1�jkH1����6�m��|�TU4�����jVs�9��Y�z�L��-�.�o]67�#,"l��̤|YLU5%�]��t)W9�^Q��G��*�E��6��i�Q�\����̮{��'�9fT)���b�hQ��)�EW�ifR�,����T:jӥ\�8�ə�\N�����s���G�r��*�Rn���U�����ǫ��%P'���xuM��LC~. 600.325/425 Declarative Methods - J. Eisner 3 Prolog vs. ECLiPSe Most common free Prolog implementation is SWI Prolog. �%��s+�&2T@L6��"�s;� t$P^HI�% b��:D9����q(� 0׀i� These notes have originally been developed for a course I taught at King’s College London in 1999 and 2000. 0000001971 00000 n '�+��%����$w�L�7d�k25�EDs��k鹜+���|�B}Za�ߢ�6�lE�%{�MfoXt�G�����UOD���������3m�q��*Z�xV�dMm��Ґ�����&��i��u�8�������l�����E��\��f�L�y¡j�� ��9����ʰ[���)��b��Y'��h잰*%u���2M!V�sj~� Vladimir Vacic, Christos Koufogiannakis, University of California at Riverside 13 Trace predicate The trace predicate prints out information about the sequence of goals in order to show where the program has reached in its execution. endobj Syntax of Prolog: Terms Structures Rather than represent the arithmetic term +(1900,-(183,100)) in this format (prefix form) Prolog will represent it in more standard infix form 1900 + (183 –100) Note that since Prolog is a symbolic language it will treat this arithmetic expression as a symbol. Esses elementos são fatos , regras e consultas . trailer << /Size 176 /Info 155 0 R /Root 158 0 R /Prev 237712 /ID[] >> startxref 0 %%EOF 158 0 obj << /Type /Catalog /Pages 151 0 R /Metadata 156 0 R >> endobj 174 0 obj << /S 1231 /Filter /FlateDecode /Length 175 0 R >> stream 0000014479 00000 n 0000003868 00000 n 0000012883 00000 n [@$�T�a��!,c��J�&9� %PDF-1.2 %���� 0000015378 00000 n 0000000807 00000 n ECLiPSe is a perfectly good Prolog implementation, although so far we’ve concentrated only on its “extra” features. 0000002129 00000 n
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