Peano axioms
AXIOMATIC SYSTEM FOR THE NATURAL NUMBERS
Peano postulates; Peanos axioms; Peano arithmetic; Peano Axioms; Peano's axioms; First order arithmetic; Arithmetic formula; Peano Arithmetic; Peano Postulate; Peano axiom; Peano numbers; Peano's postulates; Dedekind–Peano axioms; Dedekind-Peano axioms; Overspill (arithmetic); Consistency of the Peano axioms
In mathematical logic, the Peano axioms, also known as the Dedekind–Peano axioms or the Peano postulates, are axioms for the natural numbers presented by the 19th century Italian mathematician Giuseppe Peano. These axioms have been used nearly unchanged in a number of metamathematical investigations, including research into fundamental questions of whether number theory is consistent and complete.