Algerba Properties (Midterm Review) Tools A B a(b+c) is the same as ab+ac Distributive a+b=b+a is the same as ab=ba Commutative (a+b)+c is the same as a+(b+c) Associative 1*7=7*1=7 Indentity a=a reflexive if a=b then b=c Symmetric if a=b & b=c then a=c Transitive