Computer Science Foundations II – Discussion 4

Typically we think of the sum of two or more numbers. To make this problem work, let’s define sum for just one integer to be that integer. 
For your problem to turn in, you will write a proof. Use the proof technique of strong mathematical induction to prove this statement. 
For all integers, k  _ 1,  any sum of k multiples of five is also a multiple of 5.