Let x0 of type ι be given.
Let x1 of type ι be given.
Let x2 of type ι be given.
Let x3 of type ι be given.
Apply unknownprop_b29d0d66991b8737c3ef6109cea8b8736c6edd642ea721f35cfa04fecdda0905 with
x0,
x2,
x3,
prim1 x3 (1ad11.. x0 x1) leaving 2 subgoals.
The subproof is completed by applying H1.
Apply unknownprop_4469442df960b88f16925ae745a59dde3c3d26a1d7b003702e92e0a7ea2361ef with
x0,
x1,
x3 leaving 2 subgoals.
The subproof is completed by applying H2.
Apply H3.
Apply H0 with
x3.
The subproof is completed by applying H4.