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<head><title>The_First_Application_of_the_Associativity_Rule.html -- ACL2 Version 3.1</title></head>
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<h2>The First Application of the Associativity Rule</h2>
<p>
So here we see our associativity rule being used!<p>
The rewriter sweeps the conjecture in a <b>leftmost innermost</B> fashion,
applying rewrite rules as it goes.<p>
The associativity rule is used many times in this sweep. The
first ``target'' is highlighted below. Click on it to see what
happens:
<pre>
<b>Current Conjecture</B>:
(equal (app (app <a href="A_Sketch_of_How_the_Rewriter_Works.html">(app (app x1 x2) (app x3 x4))</a> (app x5 x6)) x7)
(app x1 (app (app x2 x3) (app (app x4 x5) (app x6 x7)))))
</pre>
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