Suppose a E C and ro and r1 are two counterclockwise circles so that a is inside both of them. Give a homotopy that proves Yo ~CYa} γ- 4.10. Prove the following integration by parts statement: Let f and g be holomorphic in G, and suppose γ C G is a piecewise smooth path from γ(a) to r(b). Prove that ~G is an equivalence relation.
