Robin Catalogue:
A. MS., notebook, n.p., 1903, pp. 1-41.
The words “Won’t do” (by CSP) appear on the cover of the notebook. Definition of “mathematics.” Denial that mathematics...

Robin Catalogue:
A. MS., n.p., [c.1895], pp. 1-9; 7-10 of another draft.
This manuscript should be compared with MS. 16, to which it bears a special similarity. See also MS. 250...

Robin Catalogue:
A. MS, n.p., [c.1895], pp. 1, 5-9, 7-18, 18-20.
Several definitions of “mathematics,” including Aristotle’s and CSP’s. Mathematical proof and probable reasoning...