To show that a while-statement is correct,we do not need to derive completely its weakest precondition,but only an approximation of it.

Question

Quizplus · Accepted Answer

It is true that an approximation of the weakest precondition is sufficient to show the correctness of a while-statement. This is because the weakest precondition represents the minimum set of assumptions that must be true for the loop to terminate, so any set of assumptions stronger than the weakest precondition will also guarantee termination.

To Show That a While-Statement Is Correct,we Do Not Need