Can you explain what is meant by the concept of Predicate in programming?

In programming, particularly in C#, a Predicate is a delegate that represents a method accepting one parameter and returning a boolean value. It is used to define a condition or criterion that an object must satisfy.

Example of using Predicate:

Predicate<int> isEven = x => x % 2 == 0;

bool result = isEven(4); // true

Here, isEven is a Predicate that checks whether a number is even.