exact i.2.2
n : Nat
assignments : Array Assignment
assignments_size : assignments.size = n
units : Array (Literal (PosFin n))
foundContradiction : Bool
l : Literal (PosFin n)
insertUnit_res : Array (Literal (PosFin n)) × Array Assignment × Bool :=
  insertUnit (units, assignments, foundContradiction) l
i : PosFin n
⊢ i.val < n
no goals