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Detachment (Old French de, from, and [at]tach, joining with a stake) under international law is the formal, permanent separation of and loss of sovereignty over some territory to another geopolitical entity (either adjacent or noncontiguous). Detachment can be considered the opposite or reverse of annexation.
Modus ponens (also known as "affirming the antecedent" or "the law of detachment") is the primary deductive rule of inference. It applies to arguments that have as first premise a conditional statement ( P → Q {\displaystyle P\rightarrow Q} ) and as second premise the antecedent ( P {\displaystyle P} ) of the conditional statement.
Topographic map showing detachment folds in the eastern Sichuan Basin, China.. A detachment fold, in geology, occurs as layer parallel thrusting along a decollement (or detachment) develops without upward propagation of a fault; the accommodation of the strain produced by continued displacement along the underlying thrust results in the folding of the overlying rock units.
In a fold-thrust belt, the décollement is the lowest detachment [1] (see Fig 1.) and forms in the foreland basin of a subduction zone. [1] A fold-thrust belt may contain other detachments above the décollement—an imbricate fan of thrust faults and duplexes as well as other detachment horizons. In compressional settings, the layer directly ...
Detachment (military), a military unit which has left its parent unit altogether; Detachment (territory), a concept in international law; A term used in the United Kingdom for an enclave or exclave; Detachment fault, geological term associated with large displacements; Décollement, a geological term for a zone where rock units are detached ...
A detachment fault is a gently dipping normal fault associated with large-scale extensional tectonics. [1] Detachment faults often have very large displacements (tens of km) and juxtapose unmetamorphosed hanging walls against medium to high-grade metamorphic footwalls that are called metamorphic core complexes .
Condensed detachment (Rule D) is a method of finding the most general possible conclusion given two formal logical statements. It was developed by the Irish logician Carew Meredith in the 1950s and inspired by the work of Łukasiewicz .