Pictorial Depiction of Equivalence Rules Rule 5 0 E1 E2 E2 E1 凶 Rule 6a 凶 E3 E1 E1 E2 E2 E3 Rule 7a 凶 If 0 only has attributes from El 68 E2 E1 E2 E1 Database System Concepts-6th Edition 1.10 @Silberschatz,Korth and SudarshanDatabase System Concepts - 6 1.10 ©Silberschatz, Korth and Sudarshan th Edition Pictorial Depiction of Equivalence Rules