Related:

• Actually, the probability is 100% that the elevator will be going in the right direction.
  Proof by induction: N=1. Trivialy true, since both you and the elevator only have one floor to go to....
• Proof techniques #1: Proof by Induction. This technique is used on equations with "_n" in them.
  Induction techniques are very popular, even the military used them....
• Proof techniques #1: Proof by Induction. This technique is used on equations with 'n' in them.
  Induction techniques are very popular, even the military use them....
• Lemma: All horses are the same color. Proof (by induction)
  Case n = 1: In a set with only one horse, it is obvious that all horses in that set are the same color....
• Theorem: All positive integers are equal. Proof: Sufficient to show that for any two positive integers, A and B, A = B.
  Further, it is sufficient to show that for all N > 0, if A and B (positive integers) satisfy (MAX(A, B) = N) then A = B....
• How many roads must a man walk down before he finds a damn good pub?
  Let us define n to be the number of roads a man must travel before he finds the pub defined above....
• There is a building with four floors. On the first floor, there is a convention of architects.
  On the second floor, there is a vinyl manufacturing plant....