.</p>
<p>There is always a unique declaration for each variable in each scope
because Stan prohibits the redeclaration of an already-declared
variables.<a href="#fn2" class="footnote-ref" id="fnref2"><sup>2</sup></a></p>
</div>
<div id="indexing" class="section level4 unnumbered">
<h4>Indexing</h4>
<p>If <code>x</code> is an expression of total dimensionality greater than or equal
to <span class="math inline">\(N\)</span>, then the type of expression <code>e[i1, i2, ..., iN]</code> is the same as
that of <c