A Common Principle of Boolean Algebra as Stated in George Boole's 'Mathematical Analysis of Logic': A Common Principle of Boolean Algebra: xy = y Pencil Sketch of George Boole" src="https://mathsandcomedy.files.wordpress.com/2014/11/george-boole-600dpi-ammended.jpg Figure 1: I am, at present... Ciaran Mc Ardle 7 Hearts 1 Comments 2,094 Views