Extension and contraction of ideals

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Extension, Abelian extension, Park Extension, Group extension, Agricultural extension, Separable extension, Field extension, Filename extension, Conservative extension, Extension (telephone), Linear extension, Normal extension, Foothill Extension, Extension cord, Algebraic extension, Catholic Extension, 7 Subway Extension, Algebra extension, Leading-edge extension, Forking extension, University of Wisconsin–Extension, Harvard Extension School, Green Line Extension, Extension topology, C Line Extension, Silicon Valley BART extension, Extension (semantics), Bakerloo line extension, Purely inseparable extension, Carathéodory's extension theorem, Galois extension, Transcendental extension, Browser extension, Jubilee Line Extension, Degree of a field extension, Leg extension, Regular extension, Radical extension, Northern line extension to Battersea, Extension by definition, Cooperative State Research, Education, and Extension Service, Outline of life extension, Extension method, Extension Service, Central extension, Sign extension, Life extension, LaGuardia Airport subway extension, Lying triceps extension, D Line Extension, Simple extension, Szpilrajn extension theorem, Toronto–York Spadina subway extension, Health extension officer, Extension tube, UCLA Extension, Germ-band extension, Extension Scouting, Tietze extension theorem, Texas A&M AgriLife Extension Service, K Line Northern Extension, Extension bell, Extensional tectonics, Advanced Extension Award, Physical Address Extension, Product line extension, Villeray–Saint-Michel–Parc-Extension, Extension conflict, Whitney extension theorem, Length extension attack, La Salle Extension University, Brand extension, Kan extension, Ypres Town Cemetery and Extension, Primary extension, Extension (Mac OS), Off-premises extension, Extensionality, Copyright Term Extension Act, Douady–Earle extension, Department of Agricultural Extension, IP Extension metro station, Southport and Cheshire Lines Extension Railway, Curb extension, Bandwidth extension, Extension theorem, Extension complexity, Extension (metaphysics), Index of topics related to life extension, Broadway Extension, Western Extension, Berks Cemetery Extension, Extension of a Man, Extension (music), WWE brand extension, Proboscis extension reflex, Northeast Extension, Lynnwood Link extension, M. Riesz extension theorem, Yonge North subway extension, Elbow extension test, CJK Unified Ideographs Extension B, Delaware Extension, Extensional and intensional definitions, Kwun Tong line extension, Robeson Extension, Pennsylvania, Extension of a topological group, Operator (extension), Overlap extension polymerase chain reaction, National Extension College, Extension Mechanisms for DNS, National Institute of Agricultural Extension Management, Homestead Extension of Florida's Turnpike, Small Kana Extension, Axiom of extensionality, East London line extension, Habitation Extension Modules, CJK Unified Ideographs Extension A, CJK Unified Ideographs Extension D, HNN extension, Evergreen Extension, Extension Gunners FC, Dickebusch New Military Cemetery and Extension, Mallaig Extension Railway, Haymarket North Extension, Tuen Mun South extension, Page Size Extension, Bouzincourt Communal Cemetery Extension, Firefox Environment Backup Extension, College of Technology and Museum Extension, Docklands Light Railway extension to Thamesmead, Quebec Boundaries Extension Act, 1912, Abbeville Communal Cemetery Extension, Convention for the Extension of Hong Kong Territory, Emergency Unemployment Compensation Extension Act, Continuous linear extension, Aveluy Communal Cemetery Extension, South Extension, Monterey County Rail Extension, Address Windowing Extensions, List of Harvard Extension School alumni, Central Tool Room Extension Centre, Nilokheri, South Carolina and Georgia Extension Railroad, Hull and South Yorkshire Extension Railway, CJK Unified Ideographs Extension C, CJK Unified Ideographs Extension I, Unique homomorphic extension theorem, Combles Communal Cemetery Extension, Mashrak–Thawe Extension Railway, Staggered extension process, Liverpool Overhead Railway Southern Extension Tunnel