Create a Cantor worksheet using KAlgebra backends.

The task result has to contain:

- A document describing the problems found while creating the worksheet and tell what the student thinks that can be improved.

- A worksheet trying to display the benefit we get by using Cantor instead of KAlgebra:

-> Show that we can put text and images between the formula execution

-> Show that the language is the same as in the application by using some elaborate constructions and simplifications