The multiplication rule also deals with two events, but in these problems the events occur as a result of more than one task (rolling one die then another, drawing two cards, spinning a spinner twice, pulling two marbles out of a bag, etc).

This tutorial shows how mathematical induction can be used to prove a property of exponents. Learn Math Tutorials Bookstore http://amzn.to/1HdY8vm Donate htt...

The solution in mathematical induction consists of the following steps: Write the statement to be proved as P(n) where n is the variable in the statement, and P is the statement itself. Example, if we are to prove that 1+2+3+4+. . . .+n=n(n+1)/2, we say let P(n) be 1+2+3+4+. . .+n=n(n+1)/2.

Mar 03, 2011 · Topics 1 Basic Techniques Introduction Direct Proof Proof by Contradiction Equivalence Proofs 2 Induction Introduction Strong Induction 71. Equivalence Proofs to prove P ⇔ Q, both P ⇒ Q and Q ⇒ P must be proven a method to prove P1 ⇔ P2 ⇔ · · · ⇔ Pn : P1 ⇒ P2 ⇒ · · · ⇒ Pn ⇒ P1

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