1 \documentclass[a4paper]{article}
9 \newcommand{\MATITA}{\ding{46}\textsf{\textbf{Matita}}}
11 \title{Continuationals semantics for \MATITA}
12 \author{Claudio Sacerdoti Coen \quad Enrico Tassi \quad Stefano Zacchiroli \\
13 \small Department of Computer Science, University of Bologna \\
14 \small Mura Anteo Zamboni, 7 -- 40127 Bologna, ITALY \\
15 \small \{\texttt{sacerdot}, \texttt{tassi}, \texttt{zacchiro}\}\texttt{@cs.unibo.it}}
17 \newcommand{\MATHIT}[1]{\ensuremath{\mathit{#1}}}
18 \newcommand{\MATHTT}[1]{\ensuremath{\mathtt{#1}}}
20 \newcommand{\DOT}{\ensuremath{\mbox{\textbf{.}}}}
21 \newcommand{\SEMICOLON}{\ensuremath{\mbox{\textbf{;}}}}
22 \newcommand{\BRANCH}{\ensuremath{\mbox{\textbf{[}}}}
23 \newcommand{\SHIFT}{\ensuremath{\mbox{\textbf{\textbar}}}}
24 \newcommand{\POS}[1]{\ensuremath{#1\mbox{\textbf{:}}}}
25 \newcommand{\MERGE}{\ensuremath{\mbox{\textbf{]}}}}
26 \newcommand{\FOCUS}[1]{\ensuremath{\mathtt{focus}~#1}}
27 \newcommand{\UNFOCUS}{\ensuremath{\mathtt{unfocus}}}
28 \newcommand{\SKIP}{\MATHTT{skip}}
29 \newcommand{\TACTIC}[1]{\ensuremath{\mathtt{tactic}~#1}}
31 \newcommand{\APPLY}[1]{\ensuremath{\mathtt{apply}~\mathit{#1}}}
33 \newcommand{\GOAL}{\MATHIT{goal}}
34 \newcommand{\SWITCH}{\MATHIT{switch}}
35 \newcommand{\LIST}{\MATHTT{list}}
36 \newcommand{\INT}{\MATHTT{int}}
37 \newcommand{\OPEN}{\MATHTT{Open}}
38 \newcommand{\CLOSED}{\MATHTT{Closed}}
40 \newcommand{\SEMOP}[1]{|[#1|]}
41 \newcommand{\TSEMOP}[1]{{}_t|[#1|]}
42 \newcommand{\SEM}[3][\xi]{\SEMOP{#2}_{{#1},{#3}}}
43 \newcommand{\ENTRY}[4]{\langle#1,#2,#3,#4\rangle}
44 \newcommand{\TSEM}[3]{\TSEMOP{#1}_{#2,#3}}
46 \newcommand{\GIN}[1][1]{\ensuremath{[l_{#1};\cdots;l_n]}}
48 \newcommand{\ZEROPOS}{\MATHIT{zero\_pos}}
49 \newcommand{\INITPOS}{\MATHIT{init\_pos}}
50 \newcommand{\ISFRESH}{\MATHIT{is\_fresh}}
51 \newcommand{\FILTER}{\MATHIT{filter}}
52 \newcommand{\FILTEROPEN}{\MATHIT{filter\_open}}
53 \newcommand{\ISOPEN}{\MATHIT{is\_open}}
54 \newcommand{\DEEPCLOSE}{\MATHIT{deep\_close}}
55 \newcommand{\REMOVEGOALS}{\MATHIT{remove\_goals}}
56 \newcommand{\GOALS}{\MATHIT{open\_goals}}
58 \newcommand{\BRANCHTAG}{\ensuremath{\mathtt{B}}}
59 \newcommand{\FOCUSTAG}{\ensuremath{\mathtt{F}}}
61 \newlength{\sidecondlen}
62 \setlength{\sidecondlen}{2cm}