Model theory generalizes the notion of algebraic extension to arbitrary theories: an embedding of M into N is called an algebraic extension if for every x in N there is a formula p with parameters in M, such that p ( x ) is true and the set

The production model immediately before the Model T was the Model S, an upgraded version of the company's largest success to that point, the Model N. The follow-up was the Ford Model A ( rather than any Model U ).

File: Victrola_VE9-40E_Serial_Number_Plate. jpg | S / N plate from Model VE9-40E, 1926

** Packard Model N ( 1905 )

The company responded to the increasing number of low-priced cars — including the $ 700 Ford Model N, the US $ 485 Brush Runabout, the Black at $ 375, the US $ 500 Western Gale Model A, the high-volume Oldsmobile Runabout at US $ 650, and the bargain-basement Success an amazingly low US $ 250 )-- by introducing the Model 25, their cheapest four yet.

Model railroaders use railroad scales for their buildings: H0 scale ( 1: 87 ), OO scale ( 1: 76 ), N scale ( 1: 160 ), and O scale ( 1: 43 ).

As the Model 25 is built on the same Smith & Wesson N frame as the Model 29, it was simple to substitute it for the Model 29 in scenes where Eastwood had to shoot the revolver.

A similar program is in place for those in middle school Model United Nations or M. U. N.

Many classes have an experiential component to bring the material to life — mock trials, hands-on labs and Model U. N. simulations, to name a few.

Ford followed the course of the basic Model N, and had said " Any customer can have a car painted any color that he wants so long as it is black.

The Porter's Junior Model U. N. is " designed to teach students about civics, current events, effective communication, and global perspective through engaging and interactive lessons and exercises.

* Colt Model 1908 Vest Pocket ( Model N, 1908 )

* One of the largest N scale layouts in the world is located at the San Diego Model Railroad Museum.

* 1985 – Jacqueline Fernandez, Sri Lankan Model and Bollywood Actress

* 1945 – Walter Model, German field marshal ( b. 1891 )

In the 1950s – 1970s, Caltech was the home of Murray Gell-Mann and Richard Feynman, whose work was central to the establishment of the Standard Model of particle physics.

* How to Make a Model of a Comet audio slideshow – National High Magnetic Field Laboratory

* 1648 – Colonel Pride of the New Model Army purges the Long Parliament of MPs sympathetic to King Charles I of England, in order for the King's trial to go ahead ; came to be known as " Pride's Purge ".

* 1927 – Following 19 years of Ford Model T production, the Ford Motor Company unveils the Ford Model A as its new automobile.

However, research and knowledge are brought into the design process through the judgment and common sense of designers – by designers " thinking on their feet " – more than through the predictable and controlled process stipulated by the Rational Model.

* 1940 – Childe Wills, early associate of Henry Ford, one of the first employees of the Ford Motor Company, and a contributor to the design of the Model T ( b. 1878 )

* Windows Display Driver Model ( WDDM ) – the graphic display driver architecture for Windows Vista

* Convair Model 118 – 1947, ConvAirCar, Two prototypes built.

The Leader-Member Exchange ( LMX ) Model focuses on how leader – subordinate relationships develop.

* 1891 – Walter Model, German field marshal ( d. 1945 )

As an approach to the unification of the forces, it is straightforward to apply the Kaluza – Klein theory in an attempt to unify gravity with the strong and electroweak forces by using the symmetry group of the Standard Model, SU ( 3 ) × SU ( 2 ) × U ( 1 ).

* Model – view – controller, an architectural pattern in software engineering

* Walter Model ( 1891 – 1945 ), German Field Marshal of World War II

* 1927 – The Ford Motor Company ceases manufacture of the Ford Model T and begins to retool plants to make the Ford Model A.

* 1941 – Philippine Airlines, the flag carrier of the Philippines took its first flight between Manila ( from Nielson Field ) to Baguio City with a Beechcraft Model 18 making the airline the first and oldest commercial airline in Asia operating under its original name.

* Stanford Encyclopedia of Philosophy: First-order Model Theory – by Wilfrid Hodges.

: Critical Discussions & Evidence on the Ongoing Relevance of the Herman & Chomsky Propaganda Model ( 15 – 17 May 2007 ) conference at the University of Windsor, Canada, Herman and Chomsky summarized developments to the propaganda model, followed by the publication of the proceedings of a commemoration of the twentieth publication anniversary of Manufacturing Consent in 2008.

* 1295 – The first elected representatives from Lancashire are called to Westminster by King Edward I to attend what later became known as " The Model Parliament ".

The first detection of tau neutrino interactions was announced in summer of 2000 by the DONUT collaboration at Fermilab, making it the latest particle of the Standard Model to have been directly observed ; its existence had already been inferred by both theoretical consistency and experimental data from the Large Electron – Positron Collider.

* Model D / 1 – Auster I – military version of Plus C with enlarged windows.

* Model E – Auster III – re-engined Auster I with split flaps.

* Model F – Auster II – re-engined Auster I.

* Model G – Auster IV – enlarged version of Auster III.

* Model J – Auster V – Auster IV with blind-flying instruments.

* Model K – Auster AOP6 – post-war military Air Observation aircraft.

* Model M – Auster A. 2 / 45 – 2 or 3-seat high-wing AOP aircraft, prototype only.

* Model P – Auster Avis – four-seater based on J / 1 with slimmer fuselage, two built.

* Model Q – Auster T7 – two-seat trainer version of AOP6.

* Model B4 – Auster B4 – four-seat high-winged ambulance aircraft

* Model B5 – Auster AOP9 – 1950s military air observation aircraft

* Model B8 – Auster B8 Agricola – low-winged agricultural aircraft

* Model C4 – Auster Antarctic – modified Auster T7 for Antarctic support.

* Model C6 – Auster Atlantic – four-seat high-wing touring monoplane with tricycle undercarriage, one built.

* Model D4 – Auster D4 – two-seat development of the Auster Arrow.

* Model D5 – Beagle Husky – re-engined version of Auster Alpha with modified tail

* Model D6 – Auster D6 – four-seat development of Auster Autocar