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Document Structure and Multilingual Authoring
 IN PROCEEDINGS OF INLG 2000, MITZPE
, 2000
"... The use of XMLbased authoring tools is swiftly coming a standard in the world of technical docu mentation. An XML document is a mixture of structure (the tags) and surface (text between the tags). The structure ..."
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Cited by 12 (3 self)
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The use of XMLbased authoring tools is swiftly coming a standard in the world of technical docu mentation. An XML document is a mixture of structure (the tags) and surface (text between the tags). The structure
ComputerAssisted Mathematics at Work  The HahnBanach Theorem in Isabelle/Isar
 TYPES FOR PROOFS AND PROGRAMS: TYPESâ€™99, LNCS
, 2000
"... We present a complete formalization of the HahnBanach theorem in the simplytyped settheory of Isabelle/HOL, such that both the modeling of the underlying mathematical notions and the full proofs are intelligible to human readers. This is achieved by means of the Isar environment, which provides ..."
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Cited by 7 (4 self)
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We present a complete formalization of the HahnBanach theorem in the simplytyped settheory of Isabelle/HOL, such that both the modeling of the underlying mathematical notions and the full proofs are intelligible to human readers. This is achieved by means of the Isar environment, which provides a framework for highlevel reasoning based on natural deduction. The final result is presented as a readable formal proof document, following usual presentations in mathematical textbooks quite closely. Our case study demonstrates that Isabelle/Isar is capable to support this kind of application of formal logic very well, while being open for an even larger scope.