%0 Journal Article %T Breakable Semihypergroups %J Symmetry | An Open Access Journal from MDPI %D 2019 %R https://doi.org/10.3390/sym11010100 %X In this paper, we introduce and characterize the breakable semihypergroups, a natural generalization of breakable semigroups, defined by a simple property: every nonempty subset of them is a subsemihypergroup. Then, we present and discuss on an extended version of R¨¦dei¡¯s theorem for semi-symmetric breakable semihypergroups, proposing a different proof that improves also the theorem in the classical case of breakable semigroups. View Full-Tex %U https://www.mdpi.com/2073-8994/11/1/100