| J. A. Goguen, T. Winkler, J. Meseguer, K. Futatsugi, and J.-P. Jouannaud. Introducing OBJ. Technical report, Oxford + SRI, October 1993. |
....anaturalnextstepistoprovepropertiesofthetypesand ThisresearchwaspartlysupportedbyTheResearchCouncilofNorway,divisionNAVF. 1 functions.Wehavesince1975seentwodifferentapproachestoprovingsuchproperties.Thefirst isproofbystructuralinductionwhichhasbeentreatedin[5,7,9,10,17].Thesecondissometimes referredtoasinductionlessinduction[8,14,16,18,19] Thetwomethodshavedifferentstrengthsandweaknesses.Theadvantageofinductionlessinductionisthatitisamethodwhich, whenitissuccessful,doesnotrequireinteractionfromtheuser. ....
.... headditionofinductionhypothesesingeneralwilldestroytheconvergencepropertyofthedefiningequations. Evenso,proofbystructuralinductionseemstosucceedmoreoftenthanproofs byinductionlessinduction.ThisviewissupportedbyGarlandandGuttagin[7] Furthermore in[9]Goguenwrites:Experienceindicatesthatitisgenerallyeasiertoprovethingswithstructural induction: structuralinduction)doesnotproduceanuncontrollableexplosionofstrangenew rulesthatoftenseemtograduallybecomelessandlessrelevant. ....
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J.A.Goguen.OBJasatheoremproverwithapplicationstohardwareverification.Technical report,SRIInternational,ComputerScienceLab,1988.
....SLAM system allows the user to specify a program in a very high level specification language. It is an object oriented formal specification language that integrates algebraic specifications and model based specifications. An algebraic specification, like those proposed by the OBJ language family [3, 13, 2] or Larch LSL [4] is self contained and independent of the chosen types in the code. Basically a system is described by a decomposition in data types classes. The behaviour of an operation is described in terms of other operations. On the other hand, specification languages based on abstract ....
J.A. Goguen, T. Winkler, J. Meseguer, K. Futatsugi, and J.P. Jouannaud. Introducing OBJ. Technical report, Oxford + SRI, October 1993.
....term rewriting system. These theoretical bases are indispensable to employ CafeOBJ properly. Fortunately, there is an ample literature on these subjects, and we are able to refer the reader to, e.g. 4] 13] for basics of algebraic specifications) 8] 6] for order sorted logic) [7] (for hidden sorts) 10] for coinduction) 12] for rewriting logic) 5] for institutions) and [11] 1] for term rewriting systems) as primers. The logical aspects of CafeOBJ are explained in detail in [2] and [3] This manual is for the initiated, and we sometimes abandon the theoretical ....
....to equality, which is subject to the law of symmetry, you may use transition relations, which are directed in one way only. State transitions are naturally formalised by those relations. In particular, transition relations are useful to represent concurrency and or indeterminacy. Hidden sorts[7]. You have two kinds of equivalence. One is a minimal equivalence, that identifies terms (elements) iff they are the same under the given equational theory. Another equivalence, employed for so called hidden sorts, is behavioural: two terms are equivalent iff they behave identically under the ....
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Goguen, J. and Malcom, G., A Hidden Agenda, technical report, UCSD, 1998
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J. A. Goguen, T. Winkler, J. Meseguer, K. Futatsugi, and J.-P. Jouannaud. Introducing OBJ. Technical report, Oxford + SRI, October 1993.
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J. A. Goguen, T. Winkler, J. Meseguer, K. Futatsugi, and J.-P. Jouannaud. Introducing OBJ. Technical report, Oxford + SRI, October 1993.
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J. A. Goguen, T. Winkler, J. Meseguer, K. Futatsugi, and J.-P. Jouannaud. Introducing OBJ. Technical report, Oxford + SRI, October 1993. 18
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J. A. Goguen, T. Winkler, J. Meseguer, K. Futatsugi, and J.-P. Jouannaud. Introducing OBJ. Technical report, Oxford + SRI, October 1993.
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J.A. Goguen, T. Winkler, J. Meseguer, K. Futatsugi, and J.P. Jouannaud. Introducing OBJ. Technical report, Oxford + SRI, October 1993.
No context found.
J. A. Goguen, T. Winkler, J. Meseguer, K. Futatsugi, and J.-P. Jouannaud. Introducing OBJ. Technical report, Oxford + SRI, October 1993.
No context found.
J. A. Goguen, T. Winkler, J. Meseguer, K. Futatsugi, and J.-P. Jouannaud. Introducing OBJ. Technical report, Oxford + SRI, October 1993.
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