$$ \def\cod{{\rm cod}\,} \def\dom{{\rm dom}\,} \cellwidth+=2mm \Dg & F & _{\cod u} & \rEq & F & _{\cod u} & & & F_i \\ & \uTo >{p_u} & & & \uTo & & & \ruTo <{p_i} \tx{-5pt} & \uDashto >{\mu_i} \\ {\mit\Pi}_{u:j\to k}F_k = {\mit\Pi}_u & F & _{\cod u} & \lTo ^f \up{3pt} \lTo _g \up{-3pt} & {\mit\Pi}_i & & F_i & \lDashto ^e & d \\ & \dTo >{p_u} & & & \dTo >{p_{\dom u}} \\ & F & _{\cod u} & \lTo ^{Fu} & F & _{\dom u} \\ \endDg $$