Apply unknownprop_5f5149dc445b1bf6ca4a7f60e27b87771b4704fa8e9610ac4ab806ac27b93c0b with
struct_r leaving 2 subgoals.
Let x0 of type ι be given.
The subproof is completed by applying H0.
The subproof is completed by applying unknownprop_82d75d63f26b09ba7055fe0e3dd6cbd0c974eae3e394476d956067df4f96debf.