**Unpublished Notes & Essays**

1. Logic and Sets I

2. Logic and Sets II

3. Logic and Sets III

4. Dobinski's Formula

5. A Non-Inductive Proof of the Sieve Formula

6. Recursive Formulae for Power Sums

7. A Note on Some Confusing Functional Notation

8. The Central Concepts of Probability and Statistics

9. The Terminology and Mathematical Analysis of Diagnostic Tests

10.
When can a prior be recovered from a posterior?