="keyword">val</span> mk_and : <span><span class="xref-unresolved">Z3</span>.context <span class="arrow">&#45;&gt;</span></span> <span><span><a href="../Constraint/index.html#type-z3_expr">Constr.z3_expr</a> list</span> <span class="arrow">&#45;&gt;</span></span> <a href="../Constraint/index.html#type-z3_expr">Constr.z3_expr</a></span></code></div><div class="spec-doc"><p><code>mk_and</code> is a slightly optimized version of <code>Bool.mk_and</code> that does not produce an <code>and</code> node if the num