On Mon, Aug 13, 2012 at 1:14 PM, Otto Stolz <otto.st...@uni-konstanz.de>wrote:
> In German, »Raute« is a synonym of »Rhombus«, i. e. > an equilateral quadrilateral. Hence, every »Raute« > is a »Quadrat« (square), but not vice versa. > The other way around, right? Every »Quadrat« (square, has right angles) is also a »Rhombus« (equilateral, but not necessarily right angles). markus
