Real Number Properties

• Commutative

  a+b=b+a / a.b=b.a
• Associative

  (a+b)+c=a+(b+c) / (a.b).c=a.(b.c)
• Identity

  a+0=a / a.1=a
• Inverse

  a+(-a)=0 / f a≠0, a.1/a=1