 For example, Aristotle’s system could not deduce “No quadrangle that is a square is a rectangle that is a rhombus” from “No square that is a quadrangle is a rhombus that is a rectangle” or from “No rhombus that is a rectangle is a square that is a quadrangle”.Boole's work founded the discipline of algebraic logic.It is often, but mistakenly, credited as being the source of what we know today as Boolean algebra.