Archimedean property of real numbers

E156205

The Archimedean property of real numbers is a fundamental axiom stating that for any real number, there exists a natural number larger than it, ensuring there are no infinitely large or infinitesimally small elements in the real number system.

All labels observed (3)

How this entity was disambiguated

Statements (48)

Predicate Object
instanceOf axiom of ordered fields ⓘ
mathematical property ⓘ
property of the real number system ⓘ
appearsIn axiomatizations of the real numbers as a complete ordered field ⓘ
appliesTo ordered field of real numbers ⓘ
real numbers ⓘ
category order-theoretic property ⓘ
characterizes Archimedean ordered fields ⓘ
contrastsWith non-Archimedean property ⓘ
domain ordered fields ⓘ
ensures compatibility between algebraic and order structures of the real numbers ⓘ
no infinitely large real numbers relative to the natural numbers ⓘ
no nonzero infinitesimal real numbers relative to the natural numbers ⓘ
equivalentTo For every real x > 0, there exists n in N such that n x > 1. ⓘ
For every real x, there exists n in N such that |x| < n. ⓘ
The set of natural numbers has no upper bound in the real numbers. ⓘ
The set {1/n : n in N} has infimum 0 in the real numbers. ⓘ
expressedIn first-order language of ordered fields ⓘ
formalStatement For every real number x > 0, there exists a natural number n such that 1/n < x. ⓘ
For every real number x, there exists a natural number n such that n > x. ⓘ
historicallyNamedAfter Archimedes of Syracuse ⓘ
linked to: Archimedes
implies every bounded increasing sequence of integers is eventually constant ⓘ
every real number is finite with respect to the natural numbers ⓘ
for any real x, there exists integer n with n-1 <= x < n ⓘ
the integers are unbounded above and below in the real numbers ⓘ
the natural numbers are unbounded above in the real numbers ⓘ
the real line has no infinitely distant points ⓘ
there are no infinitely large elements in the real numbers ⓘ
there are no nonzero infinitesimal elements in the real numbers ⓘ
notTrueIn hyperreal numbers ⓘ
non-Archimedean ordered fields ⓘ
p-adic number fields ⓘ
relatedTo Archimedean ordered field ⓘ
role rules out infinitesimal and infinitely large elements in the real numbers ⓘ
trueIn field of rational numbers ⓘ
field of real numbers ⓘ
usedIn calculus ⓘ
construction of the real numbers from rationals ⓘ
measure theory ⓘ
number theory ⓘ
real analysis ⓘ
topology of the real line ⓘ
usedToProve basic inequalities in analysis ⓘ
density of rational numbers in the real numbers ⓘ
existence of floor and ceiling functions on real numbers ⓘ
existence of integer parts of real numbers ⓘ
limit properties involving sequences 1/n ⓘ
that 1/n converges to 0 in the real numbers ⓘ

How these facts were elicited

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

Archimedes → knownFor → Archimedean property of real numbers ⓘ
Archimedes → hasConceptNamedAfter → Archimedean property ⓘ
linked to: Archimedean property of real numbers
Method of Exhaustion → basedOn → axiom of Eudoxus ⓘ
linked to: Archimedean property of real numbers
Method of Exhaustion → relatedConcept → Archimedean property ⓘ
linked to: Archimedean property of real numbers