Let x0 of type ο be given.
Let x1 of type ο be given.
Apply unknownprop_205dfda454738bda674e818ce60f3fddbf0921edb32095af6ffb25f2a0bd5888 with
λ x2 x3 : ο → ο → ο . x3 x0 x1 ⟶ (x0 ⟶ not x1 ⟶ False) ⟶ (not x0 ⟶ x1 ⟶ False) ⟶ False.
Assume H0:
(λ x2 x3 : ο . or (and x2 (not x3)) (and (not x2) x3)) x0 x1.
Apply unknownprop_29c71c3225679258502bd11dbc7045cf7d8f50eae8cff2bb65bd7e7026124a80 with
and x0 (not x1),
and (not x0) x1 leaving 3 subgoals.
The subproof is completed by applying H0.
Apply andE with
x0,
not x1,
False leaving 2 subgoals.
The subproof is completed by applying H3.
The subproof is completed by applying H1.
Apply andE with
not x0,
x1,
False leaving 2 subgoals.
The subproof is completed by applying H3.
The subproof is completed by applying H2.