Across
- 1. message appearing in random-looking blobs drawn by 27a
- 2. of a number, not 12d
- 5. one of 27a's pair in the chapter's title
- 10. work by 16a referenced by 27a in the chapter but not shown in it
- 13. part of a titular trio with 18a and 16a
- 15. like the rule of the pq-system, for example
- 16. part of a titular trio with 18a and 13a
- 17. (see 31a and 19a)
- 18. part of a titular trio with 16a and 13a
- 19. with 17a, the white on this page around the cells, for example
- 21. what can't be derived; there's no "table" of these
- 22. writing form used by 27a and Plato
- 25. he answers the call of 11d in the 22a by 27a that we read
- 27. the author himself
- 30. along with p and q, a symbol in the pq-system
- 31. with 17a, the cells on this page, for example
Down
- 1. work by 16a featuring interlocking animals and a 23d
- 3. the degenerate solution of 25a's puzzle, twice
- 4. word that includes "adac", but not in that order
- 6. like a violin in a sonata by 13a
- 7. tiling fodder in a work by 16a
- 8. unity
- 9. formal entity investigated by 27a in the chapter
- 11. he calls 25a in the 22a by 27a that we read
- 12. of a number, only divisible by itself and 8d
- 14. with 29d, of a drawing, having its 26d not be a 5a as well
- 20. word that includes "adac", in that order
- 23. instrument that pops up in the assigned 22a as well as 1d
- 24. of a drawing, having its 26d be a 5a as well
- 26. one of 27a's pair in the chapter's title
- 28. the next number in the sequence 1, 3, 7, 12, 18...
- 29. with 14d, of a drawing, having its 26d not be a 5a as well