Continuity Axioms
``The'' continuity axiom is an additional Euclid's 
Elements">Elements in order to guarantee that two equal Circles of Radius 
intersect eachother if the separation of their centers is less than 
(Dunham 1990). The continuity axioms are the three ofHilbert's Axioms which concern geometric equivalence.
Archimedes' Lemma is sometimes also known as ``the continuity axiom.''
See also Congruence Axioms, Hilbert's Axioms, Incidence Axioms, Ordering Axioms, ParallelPostulate
References
Dunham, W. Journey Through Genius: The Great Theorems of Mathematics. New York: Wiley, p. 38, 1990. Hilbert, D. The Foundations of Geometry. Chicago, IL: Open Court, 1980. Iyanaga, S. and Kawada, Y. (Eds.). ``Hilbert's System of Axioms.'' §163B in Encyclopedic Dictionary of Mathematics. Cambridge, MA: MIT Press, pp. 544-545, 1980.
- Antipedal Triangle
- Antipersistent Process
- Antipodal Map
- Antipodal Points
- Antipode
- Antiprism
- Antiquity
- Antisnowflake
- Antisquare Number
- Antisymmetric
- Antisymmetric Matrix
- Antisymmetric Relation
- Antisymmetric Tensor
- Antoine's Horned Sphere
- Antoine's Necklace
- Apeirogon
- Apoapsis
- Apocalypse Number
- Apocalyptic Number
- Apodization
- Apodization Function
- Apollonius Circles
- Apollonius Point
- Apollonius' Problem
- Apollonius Pursuit Problem