👉 Crosstails are a type of mathematical object in topology that can be defined as a set of points, which are connected by paths from one point to another. These points form what mathematicians call a "circuit" or "loop," and they are called "crosstails." In other words, a crosstail is a closed loop that connects two points in a topology. Crosstails can be defined recursively as follows: if the first point of the circuit is
