| 20 months ago | Chengsong | more explanation for the name "closed form" and their intuition | file | diff | annotate |
| 20 months ago | Chengsong | more | file | diff | annotate |
| 20 months ago | Chengsong | overview of finiteness proof Gerog comment "not helpful", adding more intuitions of "closed forms" | file | diff | annotate |
| 20 months ago | Chengsong | addresses Gerog "N_r meaning and relation with backtracking?" comment | file | diff | annotate |