| |
| 2000 | ||
|---|---|---|
| 3 | Richard G. Heck Jr.: Cardinality, Counting, and Equinumerosity. Notre Dame Journal of Formal Logic 41(3): 187-209 (2000) | |
| 1997 | ||
| 2 | Richard G. Heck Jr.: Grundgesetz der Arithmetik I §§29-32. Notre Dame Journal of Formal Logic 38(3): 437-474 (1997) | |
| 1993 | ||
| 1 | Richard G. Heck Jr.: The Development of Arithmetic in Frege's Grundgesetze der Arithmetik. J. Symb. Log. 58(2): 579-601 (1993) | |