Algebra is: a generalization of arithmetic in which letters representing numbers are combined according to the rules of arithmetic 2 :any of various systems or branches of mathematics
http://wiki.answers.com/Q/What_is_algybra

Algabraic Expression is an expression which is obtained by
http://www.chacha.com/question/whatisthedefinit...

Proofwriting and finding counterexamples are two of the primary classes of mathematics. Most mathematicians focus on proofwriting to develop new theorems and properties. When statements
http://www.ehow.com/info_12033457_counterexamplea...

algebraic: of or relating to algebra
http://www.kgbanswers.com/whatsthedefinitionof...
