3 problems

Biclosed-join conjecture. For $\Gamma,\Lambda\in\mathrsfs{B}(\Phi_{+})$, the set

Unipodal closure conjecture. If $\Gamma\subseteq\Phi_{+}$ is unipodal, then $\overline{\Gamma}$ is biclosed in $\Phi_{+}$.

Reflection-order and maximal-chain conjecture.