Let x0 of type ι → (ι → ο) → ο be given.
Let x1 of type ι be given.
Let x2 of type ι → ο be given.
Let x3 of type ι → ο be given.
Let x4 of type ι be given.
Let x5 of type ι → ο be given.
Assume H4: x0 x4 x5.
Apply unknownprop_516ec77a0547bdde87f302357c77a8c500e4737d03bed523bd783f1c87c1572b with
x1,
x4,
x3,
x2,
x5 leaving 4 subgoals.
The subproof is completed by applying H0.
The subproof is completed by applying H3.
Apply PNoEq_sym_ with
x1,
x2,
x3.
The subproof is completed by applying H1.
Apply H2 with
x4,
x5 leaving 2 subgoals.
The subproof is completed by applying H3.
The subproof is completed by applying H4.