What is proof?

• Proof is a series of logical steps which show whether a result is?true?or not for a set of specified numbers
  • e.g. All intigers, all even numbers etc

Notation in proof

• LHS and RHS are standard abbreviations for left-hand side and right-hand side
• Integers?are used frequently in the language of proof
  • The set of integers is denoted by ?

   

Techniques for proof