In this section we try to gain some understanding of the set of
natural numbers, , which many agree have been
aptly named. The mathematican Kronecker made a widely-quoted
sentiment: ``God made the integers; all else is the work of
man.'' (Morris Kline, *Mathematical Thought from Ancient to
Modern Times*, Oxford University Press, New York, 1972, p. 979.)

- Using Arithmetic for Extraterrestrial Communication
- Properties of Natural Numbers
- Some Historical Notes on Numbers
- Peano's Axioms
- Some Theorems Derivable from Peano's Axioms
- Comments on Hilbert's Program and Gödel's Incompleteness Theorem
- Practice With Induction
- References

Wed Sep 16 09:26:16 EDT 1998