Edexcel A Level Maths: Pure:复习笔记1.1.1 Language of Proof

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 ℤ

   

Techniques for proof