d">val</span> subst_free_vars : <span><a href="#type-subst">subst</a> <span class="arrow">&#45;&gt;</span></span> <span><a href="../../IR/Ident/index.html#type-t">IR.Ident.t</a> <span class="xref-unresolved">IStdlib</span>.IStd.Sequence.t</span></span></code></div></div><div class="odoc-spec"><div class="spec value" id="val-subst_gen_free_vars" class="anchored"><a href="#val-subst_gen_free_vars" class="anchor"></a><code><span><span class="keyword">val</span> subst_gen_free_vars : 
  <span><a href="#type-sub