Let x0 of type ι be given.
Let x1 of type ι be given.
Let x2 of type ι be given.
Apply SNoLeE with
x0,
x2,
SNoLe (add_SNo x0 x1) (add_SNo x2 x1) leaving 5 subgoals.
The subproof is completed by applying H0.
The subproof is completed by applying H2.
The subproof is completed by applying H3.
Apply SNoLtLe with
add_SNo x0 x1,
add_SNo x2 x1.
Apply add_SNo_Lt1 with
x0,
x1,
x2 leaving 4 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 H4.
Assume H4: x0 = x2.
Apply H4 with
λ x3 x4 . SNoLe (add_SNo x4 x1) (add_SNo x2 x1).
The subproof is completed by applying SNoLe_ref with
add_SNo x2 x1.