#45;&gt;</span></span> <span><a href="#type-internal_constr">internal_constr</a> <span class="arrow">&#45;&gt;</span></span> <span><a href="#type-t">t</a> <a href="../../Consistency/index.html#type-t">Consistency.t</a></span></span></code></div><div class="spec-doc"><p>filters an abstract element with respect to an arithmetic constraint, may raise bot found.</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-filter_diff"><a href="#val-filter_diff" class="anchor"></a><code><span><