Titlebook: Encyclopedia of GIS; Shashi Shekhar,Hui Xiong,Xun Zhou Living reference work 2020Latest edition

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,Imbedding Operations Associated with Kripke’s “Semantics”,In [1] Kripke proposed some translation of formulas from pure constructive, predicate calculus into formulas of a broader language, and he proved a theorem on completeness which asserts substantially that this translation is an imbedding in some system of classical mathematics.

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On Constructive Groups,Some questions connected with the carry over of fundamental group theory to constructive mathematics, and with the relationship between classical and constructive group theories are considered herein. All the considerations are carried out within the scope of constructive mathematics.

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Problem of Decidability for Some Constructive Theories of Equalities,The question of the existence of a decidable algorithm for the following three deductive theories, constructed on the basis of constructive predicate calculus, is considered herein.

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Some Reduction Classes and Undecidable Theories,We call a formula of Ε Д type an arbitrary formula of predicate calculus with equality and functional symbols which has the form . where x is the subject variable, D is the disjunction of elementary formulas..

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Incomplete Records,Questions on the topic of incomplete records present you with real-life situations where businesses are not keeping a full set of double entry records. The subject is also a favourite with examiners, since giving you the minimum of information and asking you to complete the accounts provides an excellent test of your understanding of accounting.

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Agreement and Verb Morphology in Three Varieties of English,Based on data concerning agreement and floated quantifiers from standard English and two non-standard variants, various generalizations are drawn as to when and how the functional head Num is spelled out.