Function that returns the i-th row of a given matrix
(Nth-Domain Row 3 Row-Matrix)
(Nth-Domain Row 2 Positive-Integer)
(Nth-Domain Row 1 Matrix)
(<=> (Row ?M ?I ?L)
(And (Matrix ?M)
(Positive-Integer ?I)
(=< ?I (Row-Dimension ?M))
(Row-Matrix ?L)
(= (Column-Dimension ?M) (Column-Dimension ?L))
(Forall (?J) (= (Value ?M ?I ?J) (Value ?L 1 ?J)))))