Koriolis: Not fully true. With 0 and 1 not(not x) = x in BM.
Although normally most a substraction trick to toggle between values ( a = X - a toggles between 0 and a if a = X or 0 or it toggles between 2 values that sum up to X )
Although normally most a substraction trick to toggle between values ( a = X - a toggles between 0 and a if a = X or 0 or it toggles between 2 values that sum up to X )