Let x0 of type ι be given.
Let x1 of type ι be given.
Apply H0 with
ordinal (d3786.. x0 x1).
Apply H1 with
ordinal (d3786.. x0 x1).
Apply ordinal_In_Or_Subq with
x0,
x1,
ordinal (d3786.. x0 x1) leaving 4 subgoals.
The subproof is completed by applying H0.
The subproof is completed by applying H1.
Apply unknownprop_71c983f9883b4f28b7b9554926463bb4627a33e675a17eaba24400b257e59781 with
x0,
x1,
λ x2 x3 . ordinal x3 leaving 2 subgoals.
Apply H4 with
x0.
The subproof is completed by applying H6.
The subproof is completed by applying H0.
Apply unknownprop_c3bea5de1408165b06631f86b9f132e6a4154b60456b567e9159f0db1e9656af with
x0,
x1,
λ x2 x3 . ordinal x3.
Apply unknownprop_71c983f9883b4f28b7b9554926463bb4627a33e675a17eaba24400b257e59781 with
x1,
x0,
λ x2 x3 . ordinal x3 leaving 2 subgoals.
The subproof is completed by applying H6.
The subproof is completed by applying H1.