It is also possible to redefine an environment using:
\renewcommand, only redefine an existing environment if
you want a modified version of that environment rather than because
you like the environment name.
Exercise 25: Defining a New Environment
If you did any of the exercises from Exercise 10 to Exercise 17, go back to the document you created and define the exercise environment as in the example above. Then try creating some exercises using this environment. You could, maybe, put an exercise in the first chapter, and then another one in the second chapter. Again you can download or view an example.
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