Let x0 of type ο be given.
Let x1 of type ο be given.
Apply notE with
and x0 x1 leaving 2 subgoals.
The subproof is completed by applying H0.
Apply unknownprop_389e2fb1855352fcc964ea44fe6723d7a1c2d512f04685300e3e97621725b977 with
x0,
x1 leaving 2 subgoals.
Apply unknownprop_b777a79c17f16cd28153af063df26a4626b11c1f1d4394d7f537c11837ab0962 with
x0.
The subproof is completed by applying H1.
Apply unknownprop_b777a79c17f16cd28153af063df26a4626b11c1f1d4394d7f537c11837ab0962 with
x1.
The subproof is completed by applying H2.