2. Check the axioms in the constructor when check != False?
3. Add references and start citing them.
+
+4. Implement the octonion simple EJA.
+
+5. Factor out the unit-norm basis (and operator symmetry) tests once
+ all of the algebras pass.
+
+6. Add a TrivialEJA class and use it in the tests for is_trivial().
+ The random_eja() function should also be able to return these.