Abstract Rough set theory over two universes is a generalization of rough set model to find accurate approximations for uncertain concepts in information systems in which uncertainty arises from existence of interrelations between the three basic sets: objects. attributes. and decisions. In this work. https://www.lightemupsequences.com/top-offer-SALE-Skylight-Quilt-PATTERN-P173-by-Fran-Gulick-Riley-Blake-INSTRUCTIONS-Only-Confident-Beginner-Precut-Friendly-Mult-super-offer/