Leyew, Bahru TsegayeAbbas, Mujahid2017-03-102017-12Leyew, B.T. & Abbas, M. A soft version of the Knaster–Tarski fixed point theorem with applications. Journal of Fixed Point Theory and Applications. (2017) 19: 2225-22239. https://doi.org/10.1007/s11784-017-0414-41661-7738 (print)1661-7746 (online)10.1007/s11784-017-0414-4http://hdl.handle.net/2263/59357In this paper first we define a partial order on a soft set (F, A) and introduce some related concepts. Then using the concept of a soft mapping introduced by Babitha and Sunil [Comput. Math. Appl., 60 (7) (2010), 1840-1849], a soft version of Knaster- Tarski fixed point theorem is obtained. Some examples are presented to support the concepts introduced and the results proved herein. As an application of our result, we show that the soft Knaster-Tarski fixed point theorem ensures the existence of a soft common fixed point for a commuting family of order-preserving soft mappings.en© Springer International Publishing 2017. The original publication is available at : http://link.springer.com/journal/11784.Soft setSoft complete latticeSoft Knaster-Tarski fixed pointSoft order preservingSoft least (soft greatest) fixed pointPostprint Article