Definition: Collinearity is a concept in geometry, particularly within the field of algebraic topology. In the context of algebraic topology, it refers to two or more geometric objects being placed on a plane so that they are coplanar (having the same distance from each other). In algebraic topology, collinearity can be defined by the requirement that the set of all such pairs of points must have the same property of having the same distance from each other. This definition is often used in
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