4 \documentclass[12pt,a4paper,fleqn]{report}
5 \usepackage{latexsym,graphicx,../iman,../extra,../proof,../rail,../railsetup,../isar,../pdfsetup}
7 \title{\includegraphics[scale=0.5]{isabelle_isar} \\[4ex] The Isabelle/Isar Reference Manual}
8 \author{\emph{Markus Wenzel} \\ TU M\"unchen}
12 \railterm{percent,ppercent,underscore,lbrace,rbrace,llbrace,rrbrace}
13 \railterm{ident,longident,symident,var,textvar,typefree,typevar,nat,string,verbatim,keyword}
15 \railalias{name}{\railqtoken{name}}
16 \railalias{nameref}{\railqtoken{nameref}}
17 \railalias{text}{\railqtoken{text}}
18 \railalias{type}{\railqtoken{type}}
19 \railalias{term}{\railqtoken{term}}
20 \railalias{prop}{\railqtoken{prop}}
21 \railalias{atom}{\railqtoken{atom}}
23 \newcommand{\drv}{\mathrel{\vdash}}
24 \newcommand{\edrv}{\mathop{\drv}\nolimits}
25 \newcommand{\Or}{\mathrel{\;|\;}}
28 \setcounter{secnumdepth}{2} \setcounter{tocdepth}{2}
32 \binperiod %%%treat . like a binary operator
34 \renewcommand{\phi}{\varphi}
36 %\includeonly{refcard}
47 \emph{Intelligible semi-automated reasoning} (\emph{Isar}) is a generic
48 approach to readable formal proof documents. It sets out to bridge the
49 semantic gap between any internal notions of proof based on primitive
50 inferences and tactics, and an appropriate level of abstraction for
51 user-level work. The Isar formal proof language has been designed to
52 satisfy quite contradictory requirements, being both ``declarative'' and
53 immediately ``executable'', by virtue of the \emph{Isar/VM} interpreter.
55 The current version of Isabelle offers Isar as an alternative proof language
56 interface layer. The Isabelle/Isar system provides an interpreter for the
57 Isar formal proof document language. The input may consist either of proper
58 document constructors, or improper auxiliary commands (for diagnostics,
59 exploration etc.). Proof texts consisting of proper document constructors
60 only, admit a purely static reading, thus being intelligible later without
61 requiring dynamic replay that is so typical for traditional proof scripts.
62 Any of the Isabelle/Isar commands may be executed in single-steps, so
63 basically the interpreter has a proof text debugger already built-in.
65 Employing the Isar instantiation of \emph{Proof~General}, the generic Emacs
66 interface for interactive proof assistants of LFCS Edinburgh, we arrive at a
67 reasonable environment for \emph{live document editing}. Thus proof texts
68 may be developed incrementally by issuing proper document constructors,
69 including forward and backward tracing of partial documents; intermediate
70 states may be inspected by diagnostic commands.
72 The Isar subsystem is tightly integrated into the Isabelle/Pure meta-logic
73 implementation. Theories, theorems, proof procedures etc.\ may be used
74 interchangeably between classic Isabelle proof scripts and Isabelle/Isar
75 documents. Isar is as generic as Isabelle, able to support a wide range of
76 object-logics. Currently, the end-user working environment is most complete
80 \pagenumbering{roman} \tableofcontents \clearfirst
83 \nocite{Rudnicki:1992:MizarOverview}
84 \nocite{Harrison:1996:MizarHOL}
85 \nocite{Rudnicki:1992:MizarOverview}
86 \nocite{Trybulec:1993:MizarFeatures}
87 \nocite{Syme:1997:DECLARE}
88 \nocite{Syme:1998:thesis}
89 \nocite{Syme:1999:TPHOL}
90 \nocite{Zammit:1999:TPHOL}
103 \bibliographystyle{plain} \small\raggedright\frenchspacing
104 \bibliography{../manual}