| 18 months ago | Chengsong | added technical Overview section, almost done introduction | file | diff | annotate |
| 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 |
| 20 months ago | Chengsong | Addressed Gerog "can't understand 'erase messes with structure'" comment | file | diff | annotate |
| 2022-12-30 | Chengsong | more proofreading done, last version before submission | file | diff | annotate |
| 2022-12-30 | Chengsong | until chap 7 | file | diff | annotate |