To draw a model for the axiomatic system of four-point geometry where a “line” is a line segment, a “point” is an endpoint of a line segment, and a point “is on” a line if it is one of its endpoints.

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Chapter 1.4, Problem 19E

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To draw a model for the axiomatic system of four-point geometry where a “line” is a line segment, a “point” is an endpoint of a line segment, and a point “is on” a line if it is one of its endpoints.

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