src/HOL/Complex_Analysis/Cauchy_Integral_Formula.thy
changeset 73932 fd21b4a93043
parent 73790 370ce138d1bd
child 73933 fa92bc604c59
equal deleted inserted replaced
73866:66bff50bc5f1 73932:fd21b4a93043
   396   unfolding analytic_on_def using holomorphic_higher_deriv by blast
   396   unfolding analytic_on_def using holomorphic_higher_deriv by blast
   397 
   397 
   398 lemma has_field_derivative_higher_deriv:
   398 lemma has_field_derivative_higher_deriv:
   399      "\<lbrakk>f holomorphic_on S; open S; x \<in> S\<rbrakk>
   399      "\<lbrakk>f holomorphic_on S; open S; x \<in> S\<rbrakk>
   400       \<Longrightarrow> ((deriv ^^ n) f has_field_derivative (deriv ^^ (Suc n)) f x) (at x)"
   400       \<Longrightarrow> ((deriv ^^ n) f has_field_derivative (deriv ^^ (Suc n)) f x) (at x)"
   401 by (metis (no_types, hide_lams) DERIV_deriv_iff_field_differentiable at_within_open comp_apply
   401 by (metis (no_types, opaque_lifting) DERIV_deriv_iff_field_differentiable at_within_open comp_apply
   402          funpow.simps(2) holomorphic_higher_deriv holomorphic_on_def)
   402          funpow.simps(2) holomorphic_higher_deriv holomorphic_on_def)
   403 
   403 
   404 lemma valid_path_compose_holomorphic:
   404 lemma valid_path_compose_holomorphic:
   405   assumes "valid_path g" and holo:"f holomorphic_on S" and "open S" "path_image g \<subseteq> S"
   405   assumes "valid_path g" and holo:"f holomorphic_on S" and "open S" "path_image g \<subseteq> S"
   406   shows "valid_path (f \<circ> g)"
   406   shows "valid_path (f \<circ> g)"