Full Idea
In the Fregean view number theory is a science, aimed at those truths furnished by the essential properties of zero and its successors. The two broad question are then the nature of the objects, and the epistemology of those facts.
Gist of Idea
Number theory aims at the essence of natural numbers, giving their nature, and the epistemology
Source
Crispin Wright (Frege's Concept of Numbers as Objects [1983], Intro)
Book Reference
Wright,Crispin: 'Frege's Conception of Numbers' [Scots Philosophical Monographs 1983], p.-10
A Reaction
[compressed] I pounce on the word 'essence' here (my thing). My first question is about the extent to which the natural numbers all have one generic essence, and the extent to which they are individuals (bless their little cotton socks).