By definition $\mathrm{other} = \Phi_{\ast}(\mathsf{RLD})_{\mathrm{out}}$.
A few minutes ago I’ve proved $(\Phi_{\ast}(\mathsf{RLD})_{\mathrm{out}})\bot = \Omega^{\mathsf{FCD}}$, that is found the value of the function “other” at $\bot$. It is yet a “mistery” what values it has at different arguments.