1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
<html>
<head><title>GENERALIZE.html -- ACL2 Version 3.1</title></head>
<body text=#000000 bgcolor="#FFFFFF">
<h2>GENERALIZE</h2>make a rule to restrict generalizations
<pre>Major Section: <a href="RULE-CLASSES.html">RULE-CLASSES</a>
</pre><p>
See <a href="RULE-CLASSES.html">rule-classes</a> for a general discussion of rule classes and
how they are used to build rules from formulas. An example
<code>:</code><code><a href="COROLLARY.html">corollary</a></code> formula from which a <code>:generalize</code> rule might be built is:
<pre>
Example:
any theorem
<p>
General Form:
any theorem
</pre>
To use such a <code>:generalize</code> rule, the system waits until it has
decided to generalize some term, <code>term</code>, by replacing it with some new
variable <code>v</code>. If any <code>:generalize</code> formula can be instantiated so that
some non-variable subterm becomes <code>term</code>, then that instance of the
formula is added as a hypothesis.<p>
At the moment, the best description of how ACL2 <code>:generalize</code> rules
are used may be found in the discussion of ``Generalize Rules,'' page
248 of A Computational Logic Handbook, or ``Generalization,'' page
132 of ``Computer-Aided Reasoning: An Approach.''
<br><br><br><a href="acl2-doc.html"><img src="llogo.gif"></a> <a href="acl2-doc-index.html"><img src="index.gif"></a>
</body>
</html>
|
