Basic Cancer Dual theorems The dual of any switching function can be found by replacing each And with Or, and each Or with And: constants are replaced by their complement (0 is replaced by 1 and 1 by O), and the logic operation order should hold in original R F=G: Fd=Gd EX F=AB+AC Fd=(A+ B)(A+C)Basic Concept Dual theorems The dual of any switching function can be found by replacing each And with Or, and each Or with And; constants are replaced by their complement (0 is replaced by 1 and 1 by 0) ;and the logic operation order should hold in original. F=G; Fd=Gd Ex. F=AB+AC Fd=(A+B)•(A+C)