A pair of cuts, one within the other but not within any other cut that that other is not within, shall be called a scroll. The outer cut of the pair shall be called...
Robin Catalogue:
A. MS., notebook, n.p., 1903, pp. 40-66.
The second of a three-part introduction to the alpha and beta parts of existential graphs. For the first and third...
Robin Catalogue:
A. MS., notebook, n.p., 1903, pp. 1-31.
The first and third parts of an introduction to the alpha and beta parts of the system of existential graphs; MS. 456 is...
Robin Catalogue:
A. MS., notebook, n.p., 1903, pp. 1-26.
Improvement in reasoning requires, first of all, a study of deduction. For this, an unambiguous and simple system of...
From the Robin Catalogue:
A. MS., n.p., [c 1903], pp. 1-12; 1-10; 1-3; 11 pp. of variants. Logical and existential graphs (pp. 1-12). Basic definitions and principles of...