Let x0 of type ι be given.
Let x1 of type ι be given.
Apply unknownprop_b46721c187c37140cbae22d356b00ba89f4126d81d8665e4be15b5a58c78d06f with
x0,
91630.. x0,
x1,
or (prim1 x1 x0) (x1 = x0) leaving 3 subgoals.
The subproof is completed by applying H0.
Apply orIL with
prim1 x1 x0,
x1 = x0.
The subproof is completed by applying H1.
Apply orIR with
prim1 x1 x0,
x1 = x0.
Apply unknownprop_30833a9978e304b25ffd59c347245315985872140acc9e441a97543a28184d79 with
x0,
x1.
The subproof is completed by applying H1.