The first part of the present paper is preliminaries . At the second part chaos generated by continuous maps on Warsaw circle are reaseaxched . We prove that for a continuous map f on Warsaw circle W , the following are equivalent: (1) f has positive entropy; (2) there exists a invariant closed subset D C W such that f|D is Devaney chaotic; (3) f is strongly chaotic and (4) f is SS-chaotic . |