New posts in Natural Numbers

Can you expand induction proofs to the real numbers?

Proof of greatest element of a non-empty set

Any way to determine if a finite multiset of natural numbers can be combined via addition or subtraction to form zero?

The number of ways to represent a natural number as the sum of three different natural numbers

Every natural number is covered by consecutive numbers that sum to a prime power.

Show that $n^2+n$ is even for all $n\in\mathbb{N}$ by contradiction

The set of differences of square rationals

How does Peano Postulates construct Natural numbers only?

Peano's successor function

How to construct natural numbers by set theory?