Definition: The term "jacens" is a mathematical concept in topology that refers to the set of all continuous mappings from one topological space to another. It's named after Georg Jacobi, who developed this concept in his 1892 paper "On the Equivalence of Two Definitions of Continuous Mapping." The set of all continuous mappings from one topological space X onto another Y is denoted by C(X;Y), and it is a fundamental tool in topology.
closed bracket.
what should be said.