** Hausdorff maximal principle: In any partially ordered set, every totally ordered subset is contained in a maximal totally ordered subset.

** 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

** to the greatest benefit of the least advantaged, consistent with the just savings principle, and

** The segmented DAC, which combines the thermometer-coded principle for the most significant bits and the binary-weighted principle for the least significant bits.

** " Uncertainty principle " -- Jan Hilgevoord and Jos Uffink.

** In the mid-1950s, a second land reform during the Great Leap Forward compelled individual farmers to join collectives, which, in turn, were grouped into People's communes with centrally controlled property rights and an egalitarian principle of distribution.

** Li ( Neo-Confucianism ), philosophical concept of principle

** Some, including the leadership of the Society of St Pius X, hold that it is in principle valid as a sacramental rite but maintain that the revisions in the liturgy are displeasing to God, and that it is often celebrated improperly to the extent of being sacramentally invalid.

** Some, including many sedevacantists, see it as categorically invalid in principle and entirely unacceptable.

** Blackstone's formulation, a principle in criminal law named for the jurist

** Duality ( projective geometry ), general principle of projective geometry

** Morton's fork coup, a technique in the game of Bridge that uses the principle of Morton's Fork

** What are ( necessary and sufficient ) conditions for consistency of a learning process based on the empirical risk minimization principle?

** A-Frame house, a house following the same principle

** Adage, a principle in the form of a memorable saying

** Legal analyses on the principle of laïcité ( decisions and opinions of the Conseil d ' État )

** Equivalence principle

** ( 1949 ): Human behavior and the principle of least effort

** Sigmund Freud's will to pleasurepleasure principle

** Stalin ordered that the persecution be enhanced: NKVD is " four years late " in crushing the opposition, according to his principle of " aggravation of class struggle "

** Specific amorality, the absence of some particular moral standard, principle, code, or knowledge

** the Government decision of December 2002 to agree in principle to the provision of additional resources was made contingent on the outcome of the review, and so had proved meaningless.

** T31 / M5A2-Similar in principle to the M3A2, a vehicle developed by the US Ordnance Department to combine the production of the M5 and M9 into a single vehicle.

** Well-ordering theorem: Every set can be well-ordered.

** Every surjective function has a right inverse.

** Zorn's lemma: Every non-empty partially ordered set in which every chain ( i. e. totally ordered subset ) has an upper bound contains at least one maximal element.

** Tukey's lemma: Every non-empty collection of finite character has a maximal element with respect to inclusion.

** Every vector space has a basis.

** Every unital ring other than the trivial ring contains a maximal ideal.

** Every infinite game in which is a Borel subset of Baire space is determined.

** Every field has an algebraic closure.

** Every field extension has a transcendence basis.

** Every Tychonoff space has a Stone – Čech compactification.

** 2 ( 2012 ) ( Every hospital, airport and military base has Helipads.

** It Happens Every Spring-Valentine Davies, Shirley Smith

** Every voiced consonant is written with a deep letter similar in shape to the corresponding voiceless consonant which in turn is written with a tall letter.

** The Fugitive Guy: Every so often, Letterman would introduce " Roger Campbell " ( Elliott, wearing an extremely bad toupée ), a new member of the Late Night crew.

** Edwin Hawkins for " Every Man Wants To Be Free " performed by the Edwin Hawkins Singers

** The Police for " Every Breath You Take "

** Luther Vandross and Marcus Miller for " Little Miracles ( Happen Every Day )" performed by Luther Vandross

** L. A. Reid and Babyface for " Every Little Step " performed by Bobby Brown

** 1908 Feb, in Every Where Vol. 21

** A Journey Through Every Stage of Life

** 1664-The Concession and Agreement of the Lords Proprietors of the Province of New Caesarea, or New Jersey, to and With All and Every the Adventurers and All Such as Shall Settle or Plant There

** Sting ( songwriter ) for " Every Breath You Take " performed by The Police

** The Police for " Every Breath You Take "

** Every item entry must be within one level of its predecessor, such that each item must be a sibling or child of the preceding item ( thus, no item can be a grandchild of the preceding item ).