  Someone knowledgeable in nonstandard analysis may get the feeling that in the
nonlinear theory of generalized functions, too often one works directly on the
nets and spends effort to obtain results that should be clear from general
principles. We want to show that such principles can indeed be introduced and
to illustrate their role to solve problems.
  This text is intended as a tutorial on the use of nonstandard principles in
generalized function theory intended for researchers in the nonlinear theory of
generalized functions.
