What is proof?

What is proof?And why is it so important in mathematics?Proofs provide a solid foundation for mathematicians logicians, statisticians,economists, architects, engineers,and many others to build and test their theories on.And they're just plain awesome!Let me start at the beginning.I'll introduce you to a fellow named Euclid.As in,here's looking at you, Clid.He lived in Greece about 2,300 years ago,and he's considered by many to be the father of geometry.