Let x0 of type ο be given.
Let x1 of type ο be given.
Let x2 of type ο be given.
Let x3 of type ο be given.
Let x4 of type ο be given.
Assume H0: x2.
Apply unknownprop_7c688f24c3595bc4b513e911d7f551c8ccfedc804a6c15c02d25d01a2996aec6 with
or (or (or x0 x1) x2) x3,
x4.
Apply unknownprop_fe58bf0e1de3bc72d5d4b5505e3b736ce017c28f39765ce91ea59b96704ab1e6 with
x0,
x1,
x2,
x3.
The subproof is completed by applying H0.