  Exercise 1.26 : Properties of $ D_t$
;; :PROPERTIES:
;; :header-args+: :tangle ch1/ex1-26.scm :comments org
;; :END:


(load "ch1/utils.scm")

 :PROPERTIES:
 :header-args+: :tangle ch1/ex1-26.scm :comments org
 :END:
  Exercise 1.26 : Properties of $ D_t$


(load "ch1/utils.scm")
