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<h1 class="content-header header-chapter" id="ref_reservednames" itemprop="headline">Reserved names in FTL</h1>
</div></div><p>The following names cannot be used for top-level variables without
square-bracket syntax (as <code class="inline-code">.vars[&quot;in&quot;]</code>), since they
are keywords in FTL:</p><ul>
<li>
<code class="inline-code">true</code>: boolean value
"true"
</li>
<li>
<code class="inline-code">false</code>: boolean value
"false"
</li>
<li>
<code class="inline-code">gt</code>: comparison operator "greater
than"
</li>
<li>
<code class="inline-code">gte</code>: comparison operator "greater
than or equivalent"
</li>
<li>
<code class="inline-code">lt</code>: comparison operator "less
than"
</li>
<li>
<code class="inline-code">lte</code>: comparison operator "less than
or equivalent"
</li>
<li>
<code class="inline-code">as</code>: used by a few directives
</li>
<li>
<code class="inline-code">in</code>: used by a few directives
</li>
<li>
<code class="inline-code">using</code>: used by a few directives
</li>
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