A. MS. notebook
The words "Won't do" (by CSP) appear on the cover of the notebook. Definition of "mathematics." Denial that mathematics is reducible to logic. Alternative positions considered. Existential graphs qualities collection multitude (Whitehead and Russell) substantive possibility.
Collections, Graphs existential, Logic (modal see Modality), Mathematics, Multitude, Lowell Lectures, substantive Possibility, Quality (see also Feeling Firstness Possibility Predicate), Russell Bertrand, Whitehead Alfred North