Summary
- tuned output;
- update File_Model based on file-system events;
- tuned;
- clarified modules; tuned;
- tuned;
- tuned signature;
- merged
- fix problems because of "surj" input abbreviation; tuned
- hide global sum
- gcd/lcm on finite sets
- moved some lemmas to appropriate places
- slightly generalized type class hierarchy concerning unit factors, to allow for lean polynomial normalization
- fixed LaTeX problems
- Jordan Curve Theorem
- Advanced topology