File: INCOMPATIBLE.html

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<head><title>INCOMPATIBLE.html  --  ACL2 Version 3.1</title></head>
<body text=#000000 bgcolor="#FFFFFF">
<h2>INCOMPATIBLE</h2>declaring that two rules should not both be <a href="ENABLE.html">enable</a>d
<pre>Major Section:  <a href="THEORIES.html">THEORIES</a>
</pre><p>


<pre>
Example:
(theory-invariant (incompatible (:rewrite left-to-right)
                                (:rewrite right-to-left)))
<p>
General Form:
(incompatible rune1 rune2)
</pre>

where <code>rune1</code> and <code>rune2</code> are two specific <a href="RUNE.html">rune</a>s.  The arguments are
not evaluated.  <code>Invariant</code> is just a macro that expands into a term
that checks that not both <a href="RUNE.html">rune</a>s are enabled.  See <a href="THEORY-INVARIANT.html">theory-invariant</a>.
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