👉 In computer science, a "prefine" is a type of variable that is used to store information about another variable or data structure. It allows for efficient storage and retrieval of values without having to explicitly store them in memory. For example, if you have two variables, A and B, and you want to access the value stored in variable A, you can use the prefine operator "<>" (read-only) to read only the value stored in variable A. If you need to modify or