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<head><title>VERIFY.html -- ACL2 Version 3.1</title></head>
<body text=#000000 bgcolor="#FFFFFF">
<h2>VERIFY</h2>enter the interactive proof checker
<pre>Major Section: <a href="PROOF-CHECKER.html">PROOF-CHECKER</a>
</pre><p>
For proof-checker command summaries, see <a href="PROOF-CHECKER.html">proof-checker</a>.
<p>
<pre>
Examples:
(VERIFY (implies (and (true-listp x) (true-listp y))
(equal (append (append x y) z)
(append x (append y z)))))
-- Attempt to prove the given term interactively.<p>
(VERIFY (p x)
:event-name p-always-holds
:rule-classes (:rewrite :generalize)
:instructions ((rewrite p-always-holds-lemma)
change-goal))
-- Attempt to prove (p x), where the intention is to call the
resulting DEFTHM event by the name p-always-holds, with
rule-classes as indicated. The two indicated instructions
will be run immediately to start the proof.<p>
(VERIFY)
-- Re-enter the proof-checker in the state at which is was last
left.<p>
General Form:
(VERIFY &OPTIONAL raw-term
&KEY
event-name
rule-classes
instructions)
</pre>
<code>Verify</code> is the function used for entering the <a href="PROOF-CHECKER.html">proof-checker</a>'s
interactive loop.
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