👉 A semifrontier is a type of mathematical structure, often used in topology and geometry, that represents a space with two or more dimensions. It is an extension of the concept of a plane or Euclidean space, but it has its own unique properties and properties. In a semifrontier, each point on the boundary can be connected to all other points within the boundary by a finite number of straight lines (or planes) that do not intersect at any point. This means that no line or