Apply unknownprop_4c4b27a97d7f3e81d4abb7629b850d6c55c186f55f30e3dfae132a3ddf1e0a30 with
4ae4a.. (4ae4a.. (4ae4a.. 4a7ef..)),
4ae4a.. 4a7ef...
The subproof is completed by applying unknownprop_1a9509039f289b2445d7a950ac5c1262a63a342b5340094de87b35f90c3d6cc3.