====================
Sets
====================

.. warning:: Under progress!

.. note:: Most of the definitions and notation in the section are based on [rudin]

If :latex:`$A \superset B$` and :latex:`$B \superset A$` we write :latex:`$A \eq B$`; otherwise :latex:`$A \neq B$`.

.. [rudin] `Principles of Mathematical Analysis (3rd ed)`:title:, by Walter Rudin.
              McGraw-Hill, 1976