Let x0 of type ι be given.
Let x1 of type ι be given.
Let x2 of type ι be given.
Let x3 of type ι be given.
Let x4 of type ι be given.
Apply unknownprop_8f00f9db3633f6178cb0cf83b7682b34a4811960bd09884862d46b68f70f245f with
x1,
x2,
x3,
x4,
λ x5 x6 . add_CSNo x0 x6 = add_CSNo x4 (add_CSNo x0 (add_CSNo x1 (add_CSNo x2 x3))) leaving 5 subgoals.
The subproof is completed by applying H1.
The subproof is completed by applying H2.
The subproof is completed by applying H3.
The subproof is completed by applying H4.
Apply unknownprop_da96b87d1828fc8ba863b6e04bdabe0039a91c2aa965c2060e150e0d03b88cbb with
x0,
x4,
add_CSNo x1 (add_CSNo x2 x3) leaving 3 subgoals.
The subproof is completed by applying H0.
The subproof is completed by applying H4.
Apply unknownprop_c43d8335769836c36f9b797ba1eb1e4cdc54581b36d1df362a19e77c9778f7ce with
x1,
x2,
x3 leaving 3 subgoals.
The subproof is completed by applying H1.
The subproof is completed by applying H2.
The subproof is completed by applying H3.