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<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
-
- This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
- project.
-
- Copyright (C) 1998-2018 OpenLink Software
-
- This project is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; only version 2 of the License, dated June 1991.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-
-->
<refentry id="xpf_not">
<refmeta>
<refentrytitle>not</refentrytitle>
<refmiscinfo>XPATH</refmiscinfo>
</refmeta>
<refnamediv>
<refname>not</refname>
<refpurpose>Returns true if its argument is false, and false otherwise.</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="xpf_syn_not">
<funcprototype id="xpf_proto_not">
<funcdef>boolean <function>not</function></funcdef>
<paramdef><parameter>obj</parameter> boolean</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="xpf_desc_not"><title>Description</title><para>
This function returns true if its argument is false, and false otherwise.
If the argument is not a value of boolean type, it will be converted to boolean
first.
</para></refsect1>
<refsect1 id="xpf_params_not"><title>Parameters</title>
<refsect2><title>obj</title>
<para>Boolean value</para></refsect2>
</refsect1>
<refsect1 id="xpf_ret_not"><title>Return Types</title><para>Boolean</para></refsect1>
<refsect1 id="xpf_examples_not"><title>Examples</title>
<example id="xpf_ex_not"><title></title>
<para></para>
<screen></screen>
</example>
</refsect1>
<refsect1 id="xpf_seealso_not"><title>See Also</title>
<para><link linkend="xpf_boolean">boolean()</link></para>
</refsect1>
</refentry>
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