  The axiomatic Wightman formulation for nonderivative conformal field theory
is adopted to derive conformal bootstrap equation for the four point function.
The equivalence between PCT theorem and {\it weak local commutativity}, due to
Jost, play a very crucial role in axiomatic field theory. The theorem is
suitably adopted for conformal field theory to derive the desired equations in
CFT. We demonstrate that the two Wightman functions are analytic continuation
of each other.
