[Retracted] Topological Structures of Lower and Upper Rough Subsets in a Hyperring

<div>Tabular form of the hyperoperation “<svg height="10.643pt" id="M288" style="vertical-align:-0.3498993pt" version="1.1" viewbox="-0.0498162 -10.2931 4.94072 10.643" width="4.94072pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,-.646,-1.266)"><path d="M470 557C393 591 314 624 246 666H224C156 624 76 591 0 557L12 532C86 550 163 573 235 596C309 572 384 550 458 532L470 557Z"></path></g><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M326 255C326 330 263 391 186 391S46 330 46 255S109 119 186 119S326 180 326 255ZM274 255C274 204 235 163 186 163S98 204 98 255S137 347 186 347S274 306 274 255Z"></path></g></svg>” defined in Example <a href="https://static.hindawi.com/articles/jmath/volume-2021/9963623/figures/#ex2" target="_blank">2</a>.</div>

Journal of Mathematics

tab3

Table 3

Table 3: [Retracted] Topological Structures of Lower and Upper Rough Subsets in a Hyperring 