On 3/19/2015 12:43 PM, Dave Woyciesjes wrote: > > 42 > > " (1) X=Y ; Given (2) X^2=XY ; Multiply both sides by X (3) X^2-Y^2=XY-Y^2 ; Subtract Y^2 from both sides (4) (X+Y)(X-Y)=Y(X-Y) ; Factor (5) X+Y=Y ; Cancel out (X-Y) term (6) 2Y=Y ; Substitute X for Y, by equation 1 (7) 2=1 ; Divide both sides by Y -- "Omni", proof that 2 equals 1 "