Order the steps of a proof by mathematical induction. 1)A proof of P(n) which at some point makes use of the inductive hypothesis. 2)A statement of the inductive hypothesis P(n-1) 3)A statement and proof of the base case P(0) 4)A clear statement of the property P(n) to be proven, and a clear statement that the proof is by induction, including specifically identifying the variable on which induction is being performed. 5)A statement of the inductive case.