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<html>
<head><title>PE.html -- ACL2 Version 3.1</title></head>
<body text=#000000 bgcolor="#FFFFFF">
<h2>PE</h2>print the events named by a logical name
<pre>Major Section: <a href="HISTORY.html">HISTORY</a>
</pre><p>
<pre>
Example:
:pe fn ; sketches the command that introduced fn and
; prints in full the event within it that created fn.
</pre>
See <a href="LOGICAL-NAME.html">logical-name</a>.
<p>
<code>Pe</code> takes one argument, a logical name, and prints in full the event
corresponding to the name. <code>Pe</code> also sketches the <a href="COMMAND.html">command</a> responsible
for that event if the <a href="COMMAND.html">command</a> is different from the event itself.
See <a href="PC.html">pc</a> for a description of the format used to display a <a href="COMMAND.html">command</a>. To
remind you that the event is inferior to the <a href="COMMAND.html">command</a>, i.e., you can only
undo the entire <a href="COMMAND.html">command</a>, not just the event, the event is indented
slightly from the <a href="COMMAND.html">command</a> and a slash (meant to suggest a tree branch)
connects them.<p>
If the given logical name corresponds to more than one event, then <code>:pe</code>
will print the above information for every such event. Here is an
example. of such behavior.
<pre>
ACL2 !>:pe nth
-4270 (ENCAPSULATE NIL ...)
\
>V (VERIFY-TERMINATION NTH)<p>
Additional events for the logical name NTH:
PV -4949 (DEFUN NTH (N L)
"Documentation available via :doc"
(DECLARE (XARGS :GUARD (AND (INTEGERP N)
(>= N 0)
(TRUE-LISTP L))))
(IF (ENDP L)
NIL
(IF (ZP N)
(CAR L)
(NTH (- N 1) (CDR L)))))
ACL2 !>
</pre>
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