Some mathematical theorems exhibit a special feature: The statement of the theorem is elementary and easy, but to prove it can turn out to be a tantalizing task—unless you open some magic door and everything becomes clear and simple.
CITATION STYLE
Aigner, M., & Ziegler, G. M. (2018). Tiling rectangles. In Proofs from THE BOOK (pp. 207–211). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-662-57265-8_29
Mendeley helps you to discover research relevant for your work.