Let x0 of type ι be given.
Let x1 of type ι be given.
Let x2 of type ι be given.
Apply H3 with
False.
Assume H6: x1 = x2 ⟶ ∀ x3 : ο . x3.
Apply H6.
Apply RealsStruct_leq_antisym with
x0,
x1,
x2 leaving 5 subgoals.
The subproof is completed by applying H0.
The subproof is completed by applying H1.
The subproof is completed by applying H2.
The subproof is completed by applying H5.
The subproof is completed by applying H4.