- Riemann hypothesis (Wikipedia)
In mathematics, the Riemann hypothesis is the conjecture that the Riemann zeta function has its zeros only at the negative even integers and complex numbers with real part 1/2. Many consider it to be the most important unsolved problem in pure mathematics. It is of great interest in number theory because it implies results about the distribution of prime numbers. It was proposed by Bernhard Riemann (1859), after whom it is named.
Stanford Encyclopedia of Philosophy
- Self-reference (plato.standford.edu)
In the context of language, self-reference is used to denote a statement that refers to itself or its own referent. The most famous example of a self-referential sentence is the liar sentence: “This sentence is not true.”
- Self-reference (Wikipedia)
Self-reference is a concept that involves referring to oneself or one’s own attributes, characteristics, or actions. It can occur in language, logic, mathematics, philosophy, and other fields.