rd">functor</span> (<a href="Medial_Magma/argument-1-M/index.html">M</a> : <a href="../../../../Interface/index.html#module-type-MEDIAL_MAGMA">Interface.MEDIAL_MAGMA</a>) <span>&#45;&gt;</span> <span class="keyword">functor</span> (<a href="Medial_Magma/argument-2-E/index.html">E</a> : <span class="keyword">sig</span> ... <span class="keyword">end</span>) <span>&#45;&gt;</span> <span class="keyword">functor</span> (<a href="Medial_Magma/argument-3-A/index.html">A</a> : <span class="keyword">sig</span> ... <