Commutative and associative laws

Summary

\(a,b,c∈R\) :

• Addition is commutative: \(a+b=b+a\)
• Multiplication is commutative: \(a⋅b=b⋅a\)
• Addition is associative: \(\left( a+b \right)+c=a+\left( b+c \right)\)
• Multiplication is associative: \(\left( a⋅b \right)⋅c=a⋅(b⋅c)\)