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Level of database normalization
Second normal form (2NF) is a level of database normalization defined by English computer scientist Edgar F. Codd. A relation (or a table, in SQL) is in
Second_normal_form
Level of database normalization
Edgar F. Codd. A relation (or table, in SQL) is in third normal form if it is in second normal form and also lacks non-key dependencies, meaning that no non-prime
Third_normal_form
Form of a matrix indicating its eigenvalues and their algebraic multiplicities
linear algebra, a Jordan normal form, also known as a Jordan canonical form, is an upper triangular matrix of a particular form called a Jordan matrix representing
Jordan_normal_form
Reduction of data redundancy
normal forms (from least normalized to most normalized) are: UNF: Unnormalized form 1NF: First normal form 2NF: Second normal form 3NF: Third normal form
Database_normalization
Normal form used in database normalization
level of normalization after Boyce–Codd normal form (BCNF). Whereas the second, third, and Boyce–Codd normal forms are concerned with functional dependencies
Fourth_normal_form
Level of database normalization
First normal form (1NF) is the most basic level of database normalization defined by English computer scientist Edgar F. Codd, the inventor of the relational
First_normal_form
Form in relational database normalization
Sixth normal form (6NF) is a normal form used in relational database normalization which extends the relational algebra and generalizes relational operators
Sixth_normal_form
Standard form of a boolean function
In boolean logic, a disjunctive normal form (DNF) is a normal form of a logical formula consisting of a disjunction of conjunctions; it can also be described
Disjunctive_normal_form
Database normalization
First normal form (1NF) Second normal form (2NF) Third normal form (3NF) Fourth normal form (4NF) Sixth normal form (6NF) Analysis of normal forms for anchor-tables
Fifth_normal_form
Formalism of first-order logic
normal form if it is in prenex normal form with only universal first-order quantifiers. Every first-order formula may be converted into Skolem normal
Skolem_normal_form
Boolean polynomials as sums of monomials
Algebraic normal form (ANF) is a representation of functions in boolean algebra. Formulas written in ANF are also known as ring sum normal form (RSNF or
Algebraic_normal_form
Normal form used in database normalization
Boyce–Codd normal form (BCNF or 3.5NF) is a normal form used in database normalization. It is a slightly stricter version of the third normal form (3NF).
Boyce–Codd_normal_form
Canonical form of matrices over a field
algebra, the Frobenius normal form or rational canonical form of a square matrix A with entries in a field F is a canonical form for matrices obtained
Frobenius_normal_form
Quadratic form related to curvatures of surfaces
In differential geometry, the second fundamental form (or shape tensor) is a quadratic form on the tangent plane of a smooth surface in the three-dimensional
Second_fundamental_form
Representation of a game in game theory
In game theory, normal form is a description of a game. Unlike extensive form, normal-form representations are not graphical per se, but rather represent
Normal-form_game
Standard representation of a mathematical object
In mathematics and computer science, a canonical, normal, or standard form of a mathematical object is a standard way of presenting that object as a mathematical
Canonical_form
Form for context-free grammars
into an equivalent grammar in Greibach normal form. Various constructions exist. Some do not permit the second form of rule and cannot transform context-free
Greibach_normal_form
mathematics, the normal form of a dynamical system is a simplified form that can be useful in determining the system's behavior. Normal forms are often used
Normal form (dynamical systems)
Normal_form_(dynamical_systems)
Database form
Domain-key normal form (DK/NF or DKNF) is a normal form used in database normalization which requires that the database contains no constraints other than
Domain-key_normal_form
Database stored query result set
views. Without the use of views, the normalization of databases above second normal form would become much more difficult. Views can make it easier to create
View_(SQL)
Proof of Herbrand's theorem
Thoralf Skolem had considered the Skolemizations of formulas in prenex form as part of his proof of the Löwenheim–Skolem theorem (Skolem 1920). Herbrand
Herbrandization
Database data model
database normalization, unnormalized form (UNF or 0NF), also known as an unnormalized relation or non-first normal form (N1NF or NF2), is a database data
Unnormalized_form
Probability distribution
a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable. The general form of
Normal_distribution
Game theory concept
The second normal-form game is the normal form representation of the subgame starting from Player 1's second node with actions A and B. For the second normal-form
Subgame_perfect_equilibrium
A matrix canonical form
has been variously called as modified Jordan form, reordered Jordan form, second Jordan form, and H-form. The current terminology is credited to Shapiro
Weyr_canonical_form
Probability distribution
X has a normal distribution. Equivalently, if Y has a normal distribution, then the exponential function of Y, X = exp(Y), has a log-normal distribution
Log-normal_distribution
Every square matrix with positive entries can be written in a certain standard form
Math. 21, 343–348. Idel, Martin; Wolf, Michael M. (2015). "Sinkhorn normal form for unitary matrices". Linear Algebra and Its Applications. 471: 76–84
Sinkhorn's_theorem
Operations on ordinals that extend classical arithmetic
arithmetic operations, which are usually described using the Cantor normal form for ordinals, and nimber operations. Ordinal numbers are like the counting
Ordinal_arithmetic
Problem of determining if a Boolean formula could be made true
(¬x1 ∨ x2 ∨ x3) ∧ ¬x1 is in conjunctive normal form; its first and third clauses are Horn clauses, but its second clause is not. The formula is satisfiable
Boolean satisfiability problem
Boolean_satisfiability_problem
Ancient Egyptian script
dēmotikós, 'popular') is the ancient Egyptian script derived from northern forms of hieratic used in the Nile Delta. The term was first used by the Greek
Demotic_Egyptian_script
Classification of pitch class sets
set or of its inversion. The normal form of a set is that which is transposed so as to be most compact. For example, a second inversion major chord contains
Forte_number
Stages of education
secondary schools still use the 'form' system, with Year 7 being 1st Form (or '1st year'), Year 8 being Second Form, et cetera, up until Year 12 and Year
Educational_stage
Broadway musical
Next to Normal is a 2008 American rock musical with book and lyrics by Brian Yorkey and music by Tom Kitt. The story centers on a mother who struggles
Next_to_Normal
Possible form of a matrix
For a matrix with integer coefficients, the Hermite normal form is a row echelon form that can be calculated without introducing any denominator
Row_echelon_form
normal. Let S be the shape operator and M be a smooth surface. Also, let up and vp be elements of the tangent space Tp(M). The third fundamental form
Third_fundamental_form
In mathematics, particularly in combinatorial group theory, a normal form for a free group over a set of generators or for a free product of groups is
Normal form for free groups and free product of groups
Normal_form_for_free_groups_and_free_product_of_groups
U.S. presidential administration since 2025
various forms and political entities, in excess of 1.5 Billion Dollars. MAKE AMERICA GREAT AGAIN!!! President DJT August 26, 2025 Trump's second presidency
Second presidency of Donald Trump
Second_presidency_of_Donald_Trump
Polynomial with all terms of degree two
{\displaystyle e} of a zero-mean multivariate normal distribution has the quadratic form (−1/2)xTΣ−1x). Quadratic forms are not to be confused with quadratic
Quadratic_form
Collection of objects studied in music theory
(0,2) (a major second) is in normal form while the set (0,10) (a minor seventh, the inversion of a major second) is not — its normal form being (10,0).
Set_(music)
Process for converting data into a "standard", "normal", or canonical form
has more than one possible representation into a "standard", "normal", or canonical form. This can be done to compare different representations for equivalence
Canonicalization
unit normal vector, equiaffine differential geometry uses the affine or Blaschke normal, the induced affine connection, the affine fundamental form, the
Affine_differential_geometry
Pattern of oscillating motion in a system
A normal mode of a dynamical system is a pattern of motion in which all parts of the system move sinusoidally with the same frequency and with a fixed
Normal_mode
Critical point where a periodic solution arises
two-dimensional subset of the dynamical system is approximated by a normal form, canonically expressed as the following time-dependent differential equation:
Hopf_bifurcation
Group of mathematical theorems
{\displaystyle K/N} . Every normal subgroup of G / N {\displaystyle G/N} is of the form K / N {\displaystyle K/N} for some normal subgroup K {\displaystyle
Isomorphism_theorems
Pathogenic type of misfolded protein
His second hypothesis forms the basis of the modern prion theory, and proposed that an abnormal form of a cellular protein can convert normal proteins
Prion
Settled state following a crisis
A new normal is a state to which an economy, society, etc. settles following a crisis, when this differs from the situation that prevailed prior to the
New_normal
South African rapper (born 1974)
he left to release a solo album under Chameleon Records and later form Max Normal. The band released Burn the Evidence in 1997, which caused more notoriety
Watkin_Tudor_Jones
Mathematics of smooth surfaces
fundamental form encodes how quickly f moves, while the second fundamental form encodes the extent to which its motion is in the direction of the normal vector
Differential geometry of surfaces
Differential_geometry_of_surfaces
cartridge, or just to the chamber of a specific gun. Fire forming a wildcat differs from the normal manufacturing process; in that it relies on firing a loaded
Fire_forming
Type of probability distribution
being the truncated U. Truncated normals with fixed support form an exponential family. Nielsen reported closed-form formula for calculating the Kullback-Leibler
Truncated_normal_distribution
Matrix equal to its conjugate-transpose
Hermitian matrix Hermitian form – Generalization of complex inner productsPages displaying short descriptions of redirect targets Normal matrix – Matrix that
Hermitian_matrix
Fracture or discontinuity in displaced rock
with increased depth. Normal faults can evolve into listric faults with the fault plane curving into the Earth. They can also form where the hanging wall
Fault_(geology)
Digit of a foot
five-toed form, which we first encounter in the Amphibia. The reduction of the number of toes to six, and then to five, probably took place in the second half
Toe
Theorem of algebraic geometry and commutative algebra
geometric forms of Zariski's main theorem, including: A normal local ring is unibranch, which is a variation of the statement that the transform of a normal point
Zariski's_main_theorem
Branch of ordinary differential equations
for all }}t\in \mathbb {R} .} This representation is called a Floquet normal form for the fundamental matrix solution ϕ ( t ) {\displaystyle \phi \,(t)}
Floquet_theory
Geological feature
thin-skinned extensional terrane. Décollements can form from high angle normal faults. Uplift in a second stage of extension allows the exhumation of a metamorphic
Décollement
Fundamental theorem in probability theory and statistics
averages will closely approximate a normal distribution. The central limit theorem has several variants. In its common form, the random variables must be independent
Central_limit_theorem
Surface specified with parameters
parametric form. The curvature and arc length of curves on the surface, surface area, differential geometric invariants such as the first and second fundamental
Parametric_surface
1937–1945 conflict in East Asia
(2003). 功罪千秋——花园口事件研究. East China Normal University (PhD). pp. 38, 41, 73. 渠长根 (2003). 功罪千秋——花园口事件研究. East China Normal University (PhD). pp. 23–24, 72–73
Second_Sino-Japanese_War
Educational institution to train teachers
societal values, ideologies and dominant narratives in the form of curriculum. The first public normal school in the United States was founded in Concord, Vermont
Normal_school
Term in mathematics
Similarly, a normal subgroup N of G is said to be a maximal normal subgroup (or maximal proper normal subgroup) of G if N < G and there is no normal subgroup
Maximal_subgroup
This article lists forms of government and political systems, which are not mutually exclusive, and often have much in common. According to Yale professor
List_of_forms_of_government
British comedian
family: A Normal Family, A Normal Life, A Normal Love, A Normal Imagination, A Normal Nature, A Normal Universe, A Normal Communication, A Normal Ageing
Henry_Normal
subnormal series (also normal series, normal tower, subinvariant series, or just series) of a group G is a sequence of subgroups, each a normal subgroup of the
Subgroup_series
The normal form for 0 is 0. If α {\displaystyle \alpha } is a nonzero ordinal number α < Ω ω {\displaystyle \alpha <\Omega _{\omega }} then the normal form
Buchholz_psi_functions
Mathematical-logic system based on functions
arguments are reduced. If a term has a beta-normal form, normal order reduction will always reach that normal form. Applicative order The leftmost innermost
Lambda_calculus
Philosophical thought experiment
"Boltzmann baby" formed by rare fluctuation in an extremely hot, early universe. In Boltzmann brain scenarios, the ratio of Boltzmann brains to "normal observers"
Boltzmann_brain
played in single-leg knockout matches. If scores were level at the end of normal time, 30 minutes of extra time was played, where each team was allowed to
2026 FIFA World Cup qualification – UEFA second round
2026_FIFA_World_Cup_qualification_–_UEFA_second_round
Rate of change of velocity
antiparallel) direction to the tangential velocity. Radial acceleration or normal acceleration (or centripetal acceleration during circular motions) is the
Acceleration
Group of medical conditions characterized by irregular heartbeat
including when it is too fast or too slow. Essentially, this is anything but normal sinus rhythm. A resting heart rate that is too fast – above 100 beats per
Arrhythmia
2003 Online virtual world platform
DMCA Takedown Notice is the normal procedure recommended by Linden Lab for having copyrighted content illegally resold on Second Life. Any user who uploads
Second_Life
1899–1902 war in South Africa
already in the Transvaal at the start of the war formed the nucleus of two Irish commandos. The Second Irish Brigade was headed by an Australian of Irish
Second_Boer_War
Semen discharge from the male reproductive tract
A vasectomy alters the composition of the ejaculate as a form of birth control. The normal precursor to ejaculation is sexual arousal of the male, leading
Ejaculation
Component of blood aiding in coagulation
factors) is to react to bleeding from blood vessel injury by clumping to form a blood clot. Platelets have no cell nucleus; they are fragments of cytoplasm
Platelet
algebraic theory of fields, a normal basis is a special kind of basis for Galois extensions of finite degree, characterised as forming a single orbit for the
Normal_basis
Physical quantity
and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not
Energy
Subgroup invariant under conjugation
In abstract algebra, a normal subgroup (also known as an invariant subgroup or self-conjugate subgroup) is a subgroup that is invariant under conjugation
Normal_subgroup
Geometry definition file format
normals in (x,y,z) form; normals might not be unit vectors. vn 0.707 0.000 0.707 vn ... ... # Parameter space vertices in (u, [v, w]) form; free form
Wavefront_.obj_file
Mathematical models of strategic interactions
presented in extensive form. Every extensive-form game has an equivalent normal-form game, however, the transformation to normal form may result in an exponential
Game_theory
Natural moving frame in differential geometry of surfaces
derivatives of the second fundamental form in terms of the normal connection. The third is the Ricci equation. Darboux derivative Maurer–Cartan form Treatment
Darboux_frame
Music group
MaxNormal.TV (formerly Max Normal) was a South African music group that formed in 2001 and eventually evolved into Die Antwoord. The group's name was
MaxNormal.TV
Device invented by Francis Galton
that with sufficient sample size the binomial distribution approximates a normal distribution. Galton designed it to illustrate his idea of regression to
Galton_board
Laws in physics about force and motion
illustrate the combination of gravitational force, "normal" force, friction, and string tension. Newton's second law is sometimes presented as a definition of
Newton's_laws_of_motion
State of matter at low temperatures
superfluid will form a vortex. The vortex strength is quantized, that is, a superfluid can only spin at certain "allowed" values. Rotation in a normal fluid, like
Superfluid_helium-4
Typical temperature range found in humans
Normal human body temperature (normothermia, euthermia) is the typical temperature range found in humans, generally given as 36.5–37.5 °C (97.7–99.5 °F)
Human_body_temperature
Human male external reproductive organ
located at the sebaceous glands and are normal. Phimosis is an inability to retract the foreskin fully. It is normal and harmless in infancy and pre-pubescence
Human_penis
split normal distribution also known as the two-piece normal distribution results from joining at the mode the corresponding halves of two normal distributions
Split_normal_distribution
Mathematical measure of how much a curve or surface deviates from flatness
}\mathbf {X} )} where N is the unit normal to the surface. For unit tangent vectors X, the second fundamental form assumes the maximum value k1 and minimum
Curvature
Decreased ability to see color or color differences
and perceptually uniform to all forms of color vision. Color blindness is any deviation of color vision from normal trichromatic color vision (often
Color_blindness
Chemical element with atomic number 6 (C)
carbon allotropes are solids under normal conditions, with graphite being the most thermodynamically stable form at standard temperature and pressure
Carbon
Number with all digits equally frequent
In mathematics, a real number is said to be simply normal in an integer base b if its infinite sequence of digits is distributed uniformly in the sense
Normal_number
Global climate phenomenon
track shifts far enough northward to bring wetter than normal winter conditions (in the form of increased snowfall) to the Midwestern states, as well
El_Niño–Southern_Oscillation
Roman political entity (43–32 BC)
The Second Triumvirate was an extraordinary commission and magistracy created at the end of the Roman republic for Mark Antony, Lepidus, and Octavian to
Second_Triumvirate
_{0}}<2^{\aleph _{1}}} , which is the negation of the second continuum hypothesis. It is equivalent to a weak form of ◊ on ℵ 1 {\displaystyle \aleph _{1}} . F.
Weak_continuum_hypothesis
American actor (born 1973)
He was further Emmy-nominated for the television film The Normal Heart (2014), the short form series Special (2019), and playing Henry Willson in the Netflix
Jim_Parsons
American actor (born 1978)
a screen actor; most notably, he starred in the 2012 NBC sitcom The New Normal and played the recurring role of Elijah in HBO's Girls (2012–2017). In 2019
Andrew_Rannells
Public university in Florence, Alabama, US
of 140,000 people. The University of North Alabama was one of about 180 "normal schools" founded by state governments in the 19th century to train teachers
University_of_North_Alabama
Mathematics
where n denotes the (typically exterior) normal to the boundary ∂Ω, and f is a given scalar function. The normal derivative, which shows up on the left
Neumann_boundary_condition
Chemical reaction
central ring can form a 9,10 adduct with maleic anhydride at 80 °C and even with acetylene, a weak dienophile, at 250 °C. In a normal demand Diels–Alder
Diels–Alder_reaction
Historically Black university in Hampton, Virginia, US
was read to a gathering under the historic tree there. After the War, a normal school (teacher training school) was formalized in 1868, with former Union
Hampton_University
SECOND NORMAL-FORM
SECOND NORMAL-FORM
Female
English
Anglicized form of Scottish Gaelic Seònaid, SEONA means "God is gracious."
Biblical
treasurer of Nergal
Girl/Female
Latin American
Rule; pattern. Can also be a feminine form of Norman: from the North.
Girl/Female
Indian
Soft
Girl/Female
Indian, Punjabi, Sikh, Telugu
Pure; Without Any Impurity
Male
English
English form of Teutonic Nordemann, NORMAN means "northman."
Surname or Lastname
English
English : occupational name for a keeper of swine, Middle English foreman, from Old English fÅr ‘hog’, ‘pig’ + mann ‘man’.English : status name for a leader or spokesman for a group, from Old English fore ‘before’, ‘in front’ + mann ‘man’. The word is attested in this sense from the 15th century, but is not used specifically for the leader of a gang of workers before the late 16th century.Czech and Jewish (from Bohemia, Moravia) : occupational name for a carter, Czech forman, a loanword from German.
Female
English
English name derived from the gem name, from Latin corallium, probably ultimately from Hebrew goral, CORAL means "small pebble."
Boy/Male
Shakespearean
Hamlet, Prince of Denmark' Fortinbras, Prince of Norway.
Male
English
Variant spelling of Middle English Estmond, ESMOND means "gracious protector."Â
Female
English
 Feminine form of English Norman, NORMA means "northman." Compare with another form of Norma.
Boy/Male
Hindu
Clean, Pure
Boy/Male
Biblical
Treasurer of Nergal.
Male
English
English form of Norwegian Normund, NORMAND means "north protection."
Girl/Female
American, Australian, British, Chinese, Christian, Danish, English, Finnish, French, German, Latin, Swedish
From the North; Pattern; Courage; Norseman; Rule; Standard; Female Version of Norman
Male
Scottish
Scottish form of Irish Gaelic Cormac, CORMAG means "son of defilement."
Boy/Male
French Teutonic American English German
From the north.
Female
Italian
 Italian name invented by Felice Romani in his libretto for Belini's opera of the same name, derived from Latin norma, NORMA means "standard, rule." Compare with another form of Norma.
Surname or Lastname
English, Irish (Ulster), Scottish, and Dutch
English, Irish (Ulster), Scottish, and Dutch : name applied either to a Scandinavian or to someone from Normandy in northern France. The Scandinavian adventurers of the Dark Ages called themselves norðmenn ‘men from the North’. Before 1066, Scandinavian settlers in England were already fairly readily absorbed, and Northman and Normann came to be used as bynames and later as personal names, even among the Saxon inhabitants. The term gained a new use from 1066 onwards, when England was settled by invaders from Normandy, who were likewise of Scandinavian origin but by now largely integrated with the native population and speaking a Romance language, retaining only their original Germanic name.French : regional name for someone from Normandy.Dutch : ethnic name for a Norwegian.Jewish (Ashkenazic) : variant of Nordman.Jewish : Americanized form of some like-sounding Ashkenazic name.Swedish : from norr ‘north’ + man ‘man’.Albert Andriessen Bradt, a settler in Rensselaerswijck on the upper Hudson River in NY, was originally from Norway and was known as de Norrman (‘the Norwegian’). The waterway south of Albany which powered his mills became known as the Normanskill (‘the Norman’s Waterway’), by which name it is still known today.
Boy/Male
Scottish American
From the north valley.
SECOND NORMAL-FORM
SECOND NORMAL-FORM
Boy/Male
Tamil
Swan
Male
Gypsy/Romani
 Probably the Romani form of Basque Garaile, GUARIL means "champion, victor."
Surname or Lastname
English
English : habitational name from a place so called in Lancashire (now part of Greater Manchester), named in Old English with ramm ‘ram’ (or possibly hramsa ‘wild garlic’) + bothm ‘valley bottom’.
Girl/Female
Hindu, Indian, Kannada, Marathi, Sindhi
A Rose Bud; Gulab Ki Kali; New Born Leave of a Tree
Girl/Female
Indian
Happy
Girl/Female
Tamil
Chithanya | சீதாநà¯à®¯
Energy, Enthusiasm
Surname or Lastname
English (West Midlands)
English (West Midlands) : of uncertain origin; possibly a nickname for an unruly child, or somebody who behaved like one, though this sense of brat is not recorded by OED before the 16th century. Alternatively, it may be derived from the older word brat(te) ‘apron’, ‘pinafore’ (of Celtic origin), as a nickname for someone who habitually wore one.Swedish and Norwegian : from the Old Norse personal name Brattr meaning ‘majestic’, ‘proud’ (also, of places, ‘steep’). See also Bradt.
Girl/Female
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
Electricity
Girl/Female
Indian, Punjabi, Sikh
Eternal Lamp
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
One with Melodious Voice
SECOND NORMAL-FORM
SECOND NORMAL-FORM
SECOND NORMAL-FORM
SECOND NORMAL-FORM
SECOND NORMAL-FORM
n.
See Mormal.
a.
The sixtieth part of a minute of time or of a minute of space, that is, the second regular subdivision of the degree; as, sound moves about 1,140 English feet in a second; five minutes and ten seconds north of this place.
a.
Denoting that series of hydrocarbons in which no carbon atom is united with more than two other carbon atoms; as, normal pentane, hexane, etc. Cf. Iso-.
a.
Of the rank or degree below the best highest; inferior; second-rate; as, a second-class house; a second-class passage.
imp. & p. p.
of Second
a.
Denoting certain hypothetical compounds, as acids from which the real acids are obtained by dehydration; thus, normal sulphuric acid and normal nitric acid are respectively S(OH)6, and N(OH)5.
a.
Having the power of second-sight.
n.
The quality, state, or fact of being normal; as, the point of normalcy.
adv.
In the second place.
n.
See Wormil.
adv.
In a normal manner.
a.
Sound; normal.
a.
According to a square or rule; perpendicular; forming a right angle. Specifically: Of or pertaining to a normal.
a.
Being of the same kind as another that has preceded; another, like a protype; as, a second Cato; a second Troy; a second deluge.
a.
Of the second size, rank, quality, or value; as, a second-rate ship; second-rate cloth; a second-rate champion.
a.
Of or pertaining to Normandy or to the Normans; as, the Norman language; the Norman conquest.
a.
According to an established norm, rule, or principle; conformed to a type, standard, or regular form; performing the proper functions; not abnormal; regular; natural; analogical.
n.
The second part in a concerted piece.
n.
The second part in a concerted piece; -- often popularly applied to the alto.
a.
Having the form or appearance without the substance or essence; external; as, formal duty; formal worship; formal courtesy, etc.