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📁 人工智能的教材啊
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 <div style='position:absolute;top:4.0%;left:4.11%;width:93.82%;height:4.75%'><span
 style='font-family:黑体;mso-ascii-font-family:黑体;mso-fareast-font-family:黑体'>10.1.5<span
 style="mso-spacerun: yes">&nbsp; </span>情态演算的语言&#13;</span></div>
 <div style='position:absolute;top:9.25%;left:4.11%;width:93.82%;height:4.75%'>&#13;</div>
 <div style='position:absolute;top:14.25%;left:4.11%;width:109.36%;height:5.25%'>情态演算<span
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman"'><i>(Situation
 Calculus)</i></span><span lang=EN-US style='font-family:"Times New Roman";
 mso-ascii-font-family:"Times New Roman";mso-fareast-language:ZH-CN'> </span><span
 lang=ZH-CN style='mso-fareast-language:ZH-CN'>是一种具有关于行动的推理性质的&#13;</span></div>
 <div style='position:absolute;top:19.5%;left:4.11%;width:108.23%;height:5.25%'><span
 lang=ZH-CN style='mso-fareast-language:ZH-CN'>一阶逻辑演算扩展</span><span lang=ZH-CN
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 mso-fareast-language:ZH-CN'>. </span><span lang=ZH-CN style='mso-fareast-language:
 ZH-CN'>情态演算的语言是一个多种类的一阶语言</span><span lang=ZH-CN style='font-family:"Times New Roman";
 mso-ascii-font-family:"Times New Roman";mso-fareast-language:ZH-CN'>, &#13;</span></div>
 <div style='position:absolute;top:24.75%;left:4.11%;width:93.82%;height:5.25%'><span
 lang=ZH-CN style='mso-fareast-language:ZH-CN'>包含如下特殊规定</span><span lang=ZH-CN
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 mso-fareast-language:ZH-CN'>:</span>&#13;</div>
 <div style='position:absolute;top:30.25%;left:4.11%;width:93.82%;height:5.25%'><span
 style='position:absolute;top:0%;left:1.19%;width:98.8%'><span
 style='mso-special-format:bullet;position:absolute;left:-1.21%'>&#8226;</span><span
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman"'><span
 style="mso-spacerun: yes">&nbsp; </span></span>增加状态<span style='font-family:
 "Times New Roman";mso-ascii-font-family:"Times New Roman"'> </span><span
 lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 mso-fareast-language:ZH-CN'><i>S</i></span><span lang=EN-US style='font-family:
 "Times New Roman";mso-ascii-font-family:"Times New Roman";mso-fareast-language:
 ZH-CN'> </span>和动作<span style='font-family:"Times New Roman";mso-ascii-font-family:
 "Times New Roman"'> </span><span lang=EN-US style='font-family:"Times New Roman";
 mso-ascii-font-family:"Times New Roman";mso-fareast-language:ZH-CN'><i>A</i></span><span
 lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 mso-fareast-language:ZH-CN'> </span>作为两类对象<span style='font-family:"Times New Roman";
 mso-ascii-font-family:"Times New Roman"'>;&#13;</span></span></div>
 <div style='position:absolute;top:35.5%;left:4.11%;width:93.82%;height:5.25%'><span
 style='position:absolute;top:0%;left:1.19%;width:98.8%'><span
 style='mso-special-format:bullet;position:absolute;left:-1.21%'>&#8226;</span><span
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman"'><span
 style="mso-spacerun: yes">&nbsp; </span></span>常元<span style='font-family:
 "Times New Roman";mso-ascii-font-family:"Times New Roman"'> </span><span
 lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 mso-fareast-language:ZH-CN'><i>S0 </i></span>表示任意动态世界的起始状态；&#13;</span></div>
 <div style='position:absolute;top:40.75%;left:4.11%;width:112.17%;height:5.25%'><span
 style='position:absolute;top:0%;left:1.0%;width:98.99%'><span
 style='mso-special-format:bullet;position:absolute;left:-1.01%'>&#8226;</span><span
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman"'><span
 style="mso-spacerun: yes">&nbsp; </span></span>引入二元函数符<span style='font-family:
 "Times New Roman";mso-ascii-font-family:"Times New Roman"'> </span><span
 lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 mso-fareast-language:ZH-CN'><i>do</i></span><span lang=EN-US style='font-family:
 "Times New Roman";mso-ascii-font-family:"Times New Roman";mso-fareast-language:
 ZH-CN'> —</span><span lang=EN-US style='font-family:"Times New Roman";
 mso-ascii-font-family:"Times New Roman";mso-fareast-language:ZH-CN'><i> do(a,
 s)</i></span>表示在状态<span style='font-family:"Times New Roman";mso-ascii-font-family:
 "Times New Roman"'> </span><span lang=EN-US style='font-family:"Times New Roman";
 mso-ascii-font-family:"Times New Roman";mso-fareast-language:ZH-CN'><i>s</i></span>下，执行动作<span
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman"'>
 </span><span lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:
 "Times New Roman";mso-fareast-language:ZH-CN'><i>a</i></span>后所&#13;</span></div>
 <div style='position:absolute;top:46.0%;left:4.11%;width:93.82%;height:5.25%'><span
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman"'><span
 style="mso-spacerun: yes">&nbsp;&nbsp; </span></span>得到的后继状态；&#13;</div>
 <div style='position:absolute;top:51.5%;left:4.11%;width:112.35%;height:5.25%'><span
 style='position:absolute;top:0%;left:1.0%;width:98.83%'><span
 style='mso-special-format:bullet;position:absolute;left:-1.01%'>&#8226;</span><span
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman"'><span
 style="mso-spacerun: yes">&nbsp; </span></span>引入二元谓词符<span style='font-family:
 "Times New Roman";mso-ascii-font-family:"Times New Roman"'> </span><span
 lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 mso-fareast-language:ZH-CN'><i>Poss</i></span><span lang=EN-US
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 mso-fareast-language:ZH-CN'> — </span><span lang=EN-US style='font-family:
 "Times New Roman";mso-ascii-font-family:"Times New Roman";mso-fareast-language:
 ZH-CN'><i>Poss(a, s) </i></span>表示在状态<span style='font-family:"Times New Roman";
 mso-ascii-font-family:"Times New Roman"'><i> s</i></span>下，动作<span
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman"'>
 </span><span lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:
 "Times New Roman";mso-fareast-language:ZH-CN'><i>a</i></span>是可&#13;</span></div>
 <div style='position:absolute;top:57.25%;left:4.11%;width:93.82%;height:4.75%'>以被执行的；&#13;</div>
 <div style='position:absolute;top:62.0%;left:4.11%;width:93.82%;height:5.25%'><span
 style='position:absolute;top:0%;left:1.19%;width:98.8%'><span
 style='mso-special-format:bullet;position:absolute;left:-1.21%'>&#8226;</span><span
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman"'><span
 style="mso-spacerun: yes">&nbsp; </span></span>引入二元谓词符<span style='font-family:
 "Times New Roman";mso-ascii-font-family:"Times New Roman"'> &lt; </span>表示状态之间的相对关系<span
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman"'>.
 &#13;</span></span></div>
 <div style='position:absolute;top:67.75%;left:4.11%;width:93.82%;height:4.75%'>&#13;</div>
 <div style='position:absolute;top:72.75%;left:4.11%;width:95.13%;height:5.25%'><span
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman"'><span
 style="mso-spacerun: yes">&nbsp;</span></span><span lang=EN-US
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 mso-fareast-language:ZH-CN'><i>s &lt; s’ : </i></span><span lang=EN-US
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 mso-fareast-language:ZH-CN'><span style="mso-spacerun: yes">&nbsp;</span></span><span
 lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 mso-fareast-language:ZH-CN'><i>s’ </i></span>可以从<span style='font-family:"Times New Roman";
 mso-ascii-font-family:"Times New Roman"'> </span><span lang=EN-US
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 mso-fareast-language:ZH-CN'><i>s </i></span>经由一系列可以执行的动作后得到<span
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman"'>.&#13;</span></div>
 <div style='position:absolute;top:77.75%;left:4.11%;width:93.82%;height:5.75%'><span
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman"'><span
 style="mso-spacerun:
 yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 </span></span><span style='font-family:Symbol;mso-char-type:symbol'><i>&quot;</i></span><span
 lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 mso-fareast-language:ZH-CN'><i>a, s* . s &lt; do(a, s*) </i></span><span
 lang=EN-US style='mso-ascii-font-family:宋体;mso-fareast-language:ZH-CN'><i>≤</i></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-language:
 ZH-CN'><i> s</i></span><span lang=EN-US style='font-family:"Times New Roman";
 mso-ascii-font-family:宋体;mso-hansi-font-family:"Times New Roman";mso-fareast-language:
 ZH-CN'><i>’</i></span><span lang=EN-US style='font-family:宋体;mso-ascii-font-family:
 宋体;mso-fareast-language:ZH-CN'><i> </i></span><span lang=EN-US
 style='font-family:Symbol;mso-fareast-language:ZH-CN;mso-char-type:symbol'><i>&Eacute;</i></span><span
 lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 mso-fareast-language:ZH-CN'><i> Poss(a, s*)</i></span><span lang=EN-US
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 mso-fareast-language:ZH-CN'> &#13;</span></div>
 <div style='position:absolute;top:83.5%;left:4.11%;width:93.82%;height:5.25%'><span
 lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 mso-fareast-language:ZH-CN'><i>s </i></span><span lang=EN-US style='mso-ascii-font-family:
 宋体;mso-fareast-language:ZH-CN'><i>≤</i></span><span lang=EN-US
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 mso-fareast-language:ZH-CN'><i> s’:<span style="mso-spacerun: yes">&nbsp;
 </span>s &lt; s’</i></span><span lang=EN-US style='font-family:"Times New Roman";
 mso-ascii-font-family:"Times New Roman";mso-fareast-language:ZH-CN'> </span>或<span
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman"'>
 </span><span lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:
 "Times New Roman";mso-fareast-language:ZH-CN'><i>s = s’.</i></span><span
 lang=EN-US style='mso-fareast-language:ZH-CN;mso-special-format:lastCR;
 display:none'>&#13;</span></div>
 </div>
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