# 14. Rewrite the following definition as a biconditional: Points that lie on the same line are collinear. If a point lies on a line, then it is collinear. If a point lies on a line with another point, then the two points are collinear. If two points are collinear, then they lie on the same line. Points lie on the same line if and only if the points are collinear.

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the answer is Points lie on the same line if and only if the points are collinear

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