Size-change termination principle

The Size-Change Termination (SCT) principle is a technique used in the field of computer science, particularly in the context of program analysis and verification. It provides a method for determining whether a given recursive program is guaranteed to terminate. The SCT principle is based on the observation that if recursive calls reduce certain arguments in a way that can be measured (i.e., they "shrink" in size), then we can infer termination. ### Key Concepts 1.