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23. ʸ̮

23.1 ʸ̮¤Ë´Ø¤¹¤ë½ôÄêµÁ  


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23.1 ʸ̮¤Ë´Ø¤¹¤ë½ôÄêµÁ

ÊÑ¿ô: ACTIVATE (cont1, cont2, ...)
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ÊÑ¿ô: ACTIVECONTEXTS
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ÊÑ¿ô: ASSUME (pred1, pred2, ...)
ºÇ½é¤Ë»ØÄꤵ¤ì¤¿½Ò¸ì¤Î¾éĹÀ­¤È¸½ºß¤Î¥Ç¡¼¥¿¥Ù¡¼¥¹¤È¤Î½¼Â­À­¤Ë´Ø¤·¡¢¸¡¾Ú¤ò ¹Ô¤¦¡£¤â¤·¡¢½Ò¸ì¤¬½¼Â­¤·¤Æ¤ª¤ê¾éĹÀ­¤¬Ìµ¤±¤ì¤Ð¡¢¤½¤ì¤é¤Ï¥Ç¡¼¥¿¥Ù¡¼¥¹¤ËÄɲà ¤µ¤ì¤ë¤¬¡¢ÉÔ½½Ê¬¤Ê¾ì¹ç¤ä¾éŤǤ¢¤ì¤Ð²¿¤â¼Â¹Ô¤µ¤ì¤Ê¤¤¡£ ASSUME¤Ï¥Ç¡¼¥¿¥Ù¡¼¥¹¤ËÄɲ䵤줿½Ò¸ì¤È¡¢¤½¤³¤ËÅö¤ÆÖȤ븶»Ò¡¢REDUNDANT¤« INCONSISTENT¤Î¥ê¥¹¥È¤òÊÖ¤¹¡£

ÊÑ¿ô: ASSUMESCALAR
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exp.[1,2,3]; ==>
 [exp,2*exp,3*exp]
ASSUMESCALAR¤¬TRUE¤Ç¤¢¤ì¤Ð¡¢SCALARP(exp)¤¬TRUE,CONSTANTP(exp)¤¬¤È¤Ê¤ë¡£ ASSUMESCALAR¤¬TRUE¤Ç¤¢¤ì¤Ð¡¢¤½¤ÎÍͤʼ°¤Ï"."¤ò½ü¤¯²Ä´¹±é»»»Ò¤ËÂФ¹¤ë ¥¹¥«¥é¡¼¤ÎÍͤ˿¶Éñ¤¦¡£¤â¤·¡¢ASSUMESCALAR¤¬FALSE¤Ç¤¢¤ì¤Ð¡¢¤½¤ÎÍͤʼ°¤Ï Èó¥¹¥«¥é¡¼¤ÎÍͤ˿¶Éñ¤¦¡£¤â¤·¡¢ASSUMESCALAR¤¬ALL¤Ç¤¢¤ì¤Ð¡¢¤½¤ÎÍͤʼ°¤Ï ¾å¤ËÎóµ­¤·¤¿Á´¤Æ¤Î±é»»»Ò¤ËÂФ·¤Æ¥¹¥«¥é¡¼¤È¤·¤Æ¿¶Éñ¤¦¡£

ÊÑ¿ô: ASSUME_POS
¥Ç¥Õ¥©¥ë¥ÈÃÍ:[FALSE] - INTEGRATEÅù¤òÍѤ¤¤¿»þ¡¢Àµ¤Î¼Â¿ô¤Î½õÊÑ¿ô¤òƳÆþ¤·¤Æ¡¢ ¤³¤ì¤¬Àµ¤·¤¤¤â¤Î¤È¤Ê¤ëÍͤ˷׻»¤ò¹Ô¤¦»ö¤¬²Äǽ¤Ç¤¢¤ë¡£ ASSUME_POS¥¹¥¤¥Ã¥Á(¥Ç¥Õ¥©¥ë¥ÈÃÍ FALSE)¤¬¤¢¤ê¡¢¤â¤·¡¢TRUE¤Ç¤¢¤ì¤Ð¡¢ MACSYMA¤Ï½õÊÑ¿ô¤¬Àµ¤Ç¤¢¤ë¤È²¾Äꤹ¤ë¡£¤³¤³¤Ç¤Î°Õ¿Þ¤ÏMACSYMA¤¬¿Ò¤Í¤ëɬÍ× ¤Î¤¢¤ë¼ÁÌä¿ô¤ò¸º¤é¤¹»ö¤Ç¤¢¤ë¡£ÌÀ¤é¤«¤Ë¸ºß¤¹¤ëASSUME¤Î¾ðÊó¤äǤ°Õ¤Îʸ̮¤Î ¾ðÊó¤¬Àè¹Ô¤¹¤ë¡£Î¾¼Ô¤Ï¤³¤ÎÌÜŪ¤Î°Ù¤Î½õÊÑ¿ô¤È¤·¤Æ¹Í¤¨¤é¤ì¤ë¤â¤Î¤òÀ©¸æ¤·¤Ê ¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£¥Ç¥Õ¥©¥ë¥È¤Î½õÊÑ¿ô¤ÏSYMBOLP(X)¤«SUBVARP(X)¤òËþ¤¹¤â¤Î¤Ç¤¢¤ë¡£ ÍøÍѼԤϥª¥×¥·¥ç¥ó¤ÎASSUME_POS_PRED[¥Ç¥Õ¥©¥ë¥ÈÃÍ FALSE]¤ò1ÊÑ¿ô¤Î½Ò¸ì´Ø¿ô ¤Î̾Á°¤ËÂФ·¤ÆÀßÄꤹ¤ë»ö¤Ç¡¢¤³¤ì¤òÊѹ¹¤¹¤ë»ö¤¬½ÐÍè¤ë¡£Î㤨¤Ð¡¢½õÊÑ¿ô¤È¤·¤Æ µ­¹æ¤À¤±¤Ë¤·¤¿¤¤¾ì¹ç¡¢

 
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ÊÑ¿ô: ASSUME_POS_PRED
¥Ç¥Õ¥©¥ë¥ÈÃÍ:[FALSE] - INTEGRATE¤¬¹Ô¤¦"²¾Äê"¤ËÂФ¹¤ë½õÊÑ¿ô¤È¤·¤Æ¹Í¤¨¤é¤ì ¤¿¤â¤Î¤òÀ©¸æ¤¹¤ë°Ù¡¢°ì¤Ä¤Î°ú¿ô¤ËÂФ·¤ÆÀßÄꤵ¤ì¤ë¡£ASSUME¤ÈASSUME_POS¤ò¸«¤è¡£

ÊÑ¿ô: CONTEXT
¥Ç¥Õ¥©¥ë¥ÈÃÍ:INITIAL - ÍøÍѼԤ¬¿·¤·¤¤»ö¼Â(fact)¤ò²¾Äꤷ¤¿»þ¤Ï²¿»þ¤Ç¤â¡¢ÊÑ¿ô CONTEXT¤Î¸½¹Ô¤ÎÃͤȤ·¤ÆÌ¾ÉÕ¤±¤é¤ì¤¿Ê¸Ì®¤ËÃÖ¤«¤ì¤ë¡£Æ±ÍͤËFORGET¤Ï¸½ºß¤Î CONTEXT¤ÎÃͤò»²¾È¤¹¤ë¡£Ê¸Ì®¤òÊѹ¹¤¹¤ë°Ù¤Ë¤Ïñ¤Ë˾¤Þ¤·¤¤Ê¸Ì®¤òCONTEXT¤Ë«Çû ¤¹¤ë¤À¤±¤Ç¤¢¤ë¡£¤â¤·¡¢»ØÄꤵ¤ì¤¿Ê¸Ì®¤¬Â¸ºß¤·¤Ê¤¤¾ì¹ç¤ÏNEWCONTEXT¤ò΢¤Ç¸Æ½Ð ¤·¤ÆÀ¸À®¤¹¤ë¡£CONTEXT¤ÎÃͤǻØÄꤵ¤ì¤¿Ê¸Ì®¤Ï¼«Æ°Åª¤ËÍ­¸ú¤Ë¤Ê¤ë¡£(CONTEXT¤Î »ÅÁȤ˴ؤ¹¤ë°ìÈÌŪ¤Ê»ö¼Â¤Ë¤Ä¤¤¤Æ¤ÏDESCRIBE(CONTEXTS);¤ò¼Â¹Ô¤»¤è¡£

ÊÑ¿ô: CONTEXTS
¥Ç¥Õ¥©¥ë¥ÈÃÍ:[INITIAL,GLOBAL] - ¸½»þÅÀ¤Ç¸ºß¤¹¤ëʸ̮(CONTEXT)¤Î¥ê¥¹¥È¤Ç¡¢ ¸½ºßÍ­¸ú¤Êʸ̮¤ò´Þ¤à¡£Ê¸Ì®¤Î»ÅÁȤÏÍøÍѼԤΥǡ¼¥¿¥Ù¡¼¥¹¤ÇÁªÂò¤·¤¿¸Ä½ê¤ò¸ß¤¤¤Ë «Çû¤·¤¿¤ê¡¢Ì¾Á°¤òÉÕ¤±¤¿¤ê¤¹¤ë»ö¤ò²Äǽ¤Ë¤¹¤ë¤â¤Î¤Ç¤¢¤ë¡£°ìÅÙ¡¢¤³¤ì¤¬¼Â¹Ô¤µ¤ì ¤ë¤È¡¢ÍøÍѼԤÏñ¤Ë¤½¤ì¤é¤Îʸ̮¤òÍ­¸ú¤Ë¤·¤¿¤êÈóÍ­¸ú¤Ë¤¹¤ë»ö¤Ç¡¢ËÄÂç¤Ê»ö¼Â¤ò MACSYMA¤Ë²¾Äꤵ¤»¤¿¤ê˺¤ì¤µ¤»¤¿¤ê¤¹¤ë»ö¤¬½ÐÍè¤ë¡£Ç¤°Õ¤Îµ­¹æ¸¶»Ò¤òʸ̮¤È¤¹¤ë »ö¤¬²Äǽ¤Ç¤¢¤ê¡¢¤½¤Îʸ̮¤Ë´Þ¤Þ¤ì¤ë»ö¼Â¤ÏÍøÍѼԤ¬¤½¤ì¤é¤òFORGET¤òÍѤ¤¤Æ¸ÄÊÌ¤Ë Ç˲õ¤·¤¿¤ê¡¢¤½¤ì¤é¤¬Â°¤¹¤ëʸ̮¤òÇ˲õ¤¹¤ë°Ù¤ËKILL¤òÍѤ¤¤Æ¤Þ¤ë¤´¤ÈÇ˲õ¤¹¤ëËø¤Ï ÊÝ»ý¤µ¤ì¤Æ¤¤¤ë¡£

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ÊÑ¿ô: DEACTIVATE (cont1, cont2, ...)
»ØÄꤷ¤¿Ê¸Ì®conti¤òÍ­¸ú¤Ç̵¤¯¤¹¤ë¡£

ÊÑ¿ô: FACTS (item)
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Àë¸À: FEATURES
- MACSYMA¤Ï¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ë¤è¤Ã¤ÆÍ¿¤¨¤é¤ì¤¿¡¢ÁȤ߹þ¤ß¤ÎÆÃÀ­¤ò»ý¤Ä¡£ ¤½¤ì¤é¤ÏFEATURES¤È¸Æ¤Ð¤ì¤ë¡£DECLARE(N,INTEGER)Åù¡¹¤È¤¹¤ë»ö¤¬²Äǽ¤È¤Ê¤ë¡£ Ëô¡¢DECLARE¤Ç¤½¤ì¼«¿È¤ÎFEATURES¤òÀë¸À¤¹¤ë»ö¤¬²Äǽ¤Ç¤¢¤ë¡£Î㤨¤Ð¡¢ DECLARE(INCREASING,FEATURE);¤Ë¤è¤Ã¤Æ¡£¤³¤ì¤ÏDECLARE(F,INCREASING);¤È Àë¸À¤¹¤ë»ö¤òµöÍÆ¤¹¤ë¤â¤Î¤Ç¤â¤¢¤ë¡£

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ÊÑ¿ô: FORGET (pred1, pred2, ...)
ASSUME¤Ë¤è¤Ã¤Æ³ÎΩ¤µ¤ì¤¿´Ø·¸¤òºï½ü¤¹¤ë¡£ ½Ò¸ì¤Ï°ÊÁ°ASSUME¤Ç²¾Äꤵ¤ì¤¿¤â¤Î¤ÈƱÃÍ(Ʊ°ì¤Ç¤¢¤ëɬÍפÏ̵¤¤)¤Ê¼°¤ÇÎɤ¤¡£ FORGET(list)¤â¤Þ¤¿Àµµ¬¤Î·Á¼°¤Ç¤¢¤ë¡£

ÊÑ¿ô: KILLCONTEXT (context1,context2,...,contextn)
»ØÄꤷ¤¿Ê¸Ì®¤ò»¦¤¹(kill¤¹¤ë)¡£¤½¤ì¤é¤Î°ì¤Ä¤¬¸½¹Ô¤Îʸ̮¤Ç¤¢¤ì¤Ð¡¢¿·¤·¤¤ ¸½¹Ô¤Îʸ̮¤Ï»¦¤µ¤ì¤Æ¤¤¤Ê¤¤¸½¹Ô¤Îʸ̮¤ÎºÇ½é¤ÎÍøÍѲÄǽ¤ÊÉôʬʸ̮¤Ë¤Ê¤ë¡£ ¤â¤·¡¢ºÇ½é¤ÎÍøÍѲÄǽ¤Ç»¦¤µ¤ì¤Æ¤¤¤Ê¤¤Ê¸Ì®¤¬GLOBAL¤Ç¤¢¤ì¤Ð¡¢INITIAL¤¬Âå¤ê¤Ë »È¤ï¤ì¤ë¡£¤â¤·¡¢INITIALʸ̮¤¬»¦¤µ¤ì¤ë¤È¡¢¿·¤·¤¤INITIAL¤¬À¸À®¤µ¤ì¡¢¤½¤ì¤Ë¤Ï »ö¼Â¤¬¶õ¤È¤Ê¤Ã¤Æ¤¤¤ë¡£KILLCONTEXT¤ÏÍøÍѼԤ¬¤½¤Î»þÅÀ¤ÇÍ­¸ú¤Êʸ̮¤ò»¦¤¹»ö¤ò ¤½¤ì¤¬¸½¹Ô¤Îʸ̮¤ÎÉôʬʸ̮¤Ç¤¢¤ë¤«¡¢ACTIVATE´Ø¿ô¤ÎÍøÍѤΤɤÁ¤é¤«¤Ë¤è¤Ã¤Æ µöÍÆ¤·¤Ê¤¤¡£

ÊÑ¿ô: NEWCONTEXT (name)
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ÊÑ¿ô: SUPCONTEXT (name,context)
¿·¤·¤¤Ê¸Ì®(name¤È¸Æ¤Ð¤ì¤ë)¤òÀ¸À®¤·¡¢¤½¤ÎÉôʬʸ̮¤¬Ê¸Ì®context¤Ç¤¢¤ë¡£ ʸ̮context¤¬»ØÄꤵ¤ì¤Ê¤±¤ì¤Ð¡¢¸½¹Ô¤Îʸ̮¤¬²¾Äꤵ¤ì¤ë¡£ ¤â¤·¡¢¤½¤ì¤¬»ØÄꤵ¤ì¤ë¤Ê¤é¡¢Ê¸Ì®context¤Ï¸ºß¤·¤Æ¤¤¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£


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This document was generated by Hiroshi Yokota on September, 16 2002 using texi2html