Expression 4: "g" left parenthesis, "x" , right parenthesis equals "x" plus "f" left parenthesis, "x" , right parenthesisgx=x+fx
4
Expression 5: "g" prime left parenthesis, "x" Subscript, 1 , Baseline , right parenthesis left parenthesis, "x" minus "x" Subscript, 1 , Baseline , right parenthesis plus "g" left parenthesis, "x" Subscript, 1 , Baseline , right parenthesisg′x1x−x1+gx1
5
Expression 6: "g" prime left parenthesis, "X" , right parenthesis tilde 0g′X~0
6
Expression 7: "M" Subscript, "X" "p" "l" "u" "s" "Y" , Baseline equals "g" left parenthesis, "X" , right parenthesisMXplusY=gX