** In order theory, see order automorphism.

** Microevolution: species — speciation — adaptation — selection — natural selection — directional selection — sexual selection — genetic drift — sexual reproduction — asexual reproduction — colony — allele frequency — neutral theory of molecular evolution — population genetics — Hardy-Weinberg principle

** Quantum chromodynamics, a theory of the strong interaction ( color force )

** Dual ( category theory ), a formalization of mathematical duality

** LTI system theory

** electron theory of metals

** Backward induction in game theory and economics

** for his profound contributions to three major areas of operations research and management science: inventory theory, dynamic programming and lattice programming.

** in recognition of his fundamental contributions to game theory and related areas

** for his contributions to queueing theory, applied probability and stochastic modelling

** Limit ( category theory )

** Most forms of cognitivism hold that some such propositions are true, as opposed to error theory, which asserts that all are erroneous.

** Error theory, another form of moral anti-realism, holds that although ethical claims do express propositions, all such propositions are false.

** In group theory, the omega and agemo subgroups of a p-group, Ω ( G ) and ℧( G )

** In number theory, Ω ( n ) is the number of prime divisors of n.

** In relational database theory to represent NULL, a missing or inapplicable value.

** In set theory, the first uncountable ordinal number ( more commonly written as ω < sub > 1 </ sub >)

** In number theory, ω ( n ) is the number of distinct prime divisors of n.

** In number theory, an arithmetic function

** the ultraproduct, in model theory.

** General relativity, Albert Einstein's theory of gravitation

** Special relativity, a theory formulated by Albert Einstein, Henri Poincaré, and Hendrik Lorentz

** Constructionism ( learning theory )

** Coherence theory of truth

** The other areas of the world where numerical classifier systems are common in indigenous languages are the western parts of North and South America, so that numerical classifiers could even be seen as a pan-Pacific Rim areal feature.

** Generative: naïve Bayes classifier

** Naive Bayes classifier

** fundamental properties of elementary particles

** In Cologne, Germany, Walter Seifert attacks students and teachers in an elementary school with a flamethrower, killing 10 and injuring 21.

** Israeli Air Force F4 Phantom II fighter bombers kill forty-seven Egyptian school children at an elementary school in what is known as Bahr el-Baqar massacre.

** Composite particle, a bound state between several elementary particles

** Emil Post ( 1921 ) Introduction to a general theory of elementary propositions, with commentary by van Heijenoort, pages 264-283.

** English translation: Introduction to the Vigier Theory of elementary particles.

** District elementary schools in Casas Adobes include Marion Donaldson Elementary School, Winifred Harelson Elementary School, Mesa Verde Elementary School, and Lulu Walker Elementary School

** Pseudaria, or Book of Fallacies, an elementary text about errors in reasoning.

** Ecole Rockingham School, an elementary school in Halifax, Nova Scotia

** Special Education, with concentrations in: early intervention, gifted education, elementary ( grades 1-5 ) mild / moderate special education, middle school ( grades 4-8 ) and secondary ( grades 6-12 ) mild / moderate special education

** Quartic reciprocity, a collection of theorems in elementary and algebraic number theory that state conditions under which the congruence x < sup > 4 </ sup > ≡ p ( mod q ) is solvable

** Digital Textbook a South Korean Project that intends to distribute tablet notebooks to elementary school students.

** In elementary mathematics, especially elementary geometry:

** Gander Academy, an elementary school in Gander

** Brandeis Elementary School, an elementary school in Louisville, Kentucky, USA

** Cheonho bus station → Gang dong → Gildong Crossroad → Sangil elementary school → Jungbu express way → Gwangju IC → Gwangju city hall → Gwangju chuk hyup → U-rim Apt.

** elementary schools ( category )

** Warm Springs Elementary School, elementary school in Fremont, California

** 2G — Transmit antenna selection as an elementary beamforming

** Our Lady of Peace is an elementary school of the Toronto Catholic District School Board in Toronto, Ontario, Canada

** the elementary charge in physics

** The Amendments require that seafarers be provided with " familiarization training " and " basic safety training " which includes basic fire fighting, elementary first aid, personal survival techniques, and personal safety and social responsibility.