%% %% This is file `oz.sty', generated %% on <1994/7/28> with the docstrip utility (1). %% %% The original source files were: %% %% oz.dtx (with options: `package') %% Copyright (C) 1993 Sebastian Rahtz. All rights reserved. %% This is a generated file for *PSNFSS2e*. Permission is granted to to %% customize the declarations in this file to serve the needs of your %% installation. However, no permission is granted to distribute a %% modified version of this file under its original name. %% \def\fileversion{2} \def\filedate{94/04/7} \def\docdate {94/04/7} %% File: oz.dtx Copyright (C) 1994 Sebastian Rahtz \NeedsTeXFormat{LaTeX2e} \ProvidesPackage{oz}[\filedate\space\fileversion] \@ifpackageloaded{lucbr}{}{% \DeclareMathVersion{oz} \SetMathAlphabet{\mathrm}{oz}{\encodingdefault}{\rmdefault}{m}{n}% \SetMathAlphabet{\mathbf}{oz}{\encodingdefault}{\rmdefault}{bx}{n}% \SetMathAlphabet{\mathsf}{oz}{\encodingdefault}{\sfdefault}{m}{n}% \DeclareSymbolFont{italics}{\encodingdefault}{\rmdefault}{m}{it}% \DeclareSymbolFontAlphabet{\mathrm}{operators} \DeclareSymbolFontAlphabet{\mathit}{letters} \DeclareSymbolFontAlphabet{\mathcal}{symbols} \DeclareSymbolFontAlphabet{\ozit}{italics} \DeclareSymbolFont{lasy}{U}{lasy}{m}{n} \DeclareSymbolFont{AMSa}{U}{msa}{m}{n} \DeclareSymbolFont{AMSb}{U}{msb}{m}{n} \let\mho\undefined \let\Join\undefined \let\Box\undefined \let\Diamond\undefined \let\leadsto\undefined \let\sqsubset\undefined \let\sqsupset\undefined \let\lhd\undefined \let\unlhd\undefined \let\rhd\undefined \let\unrhd\undefined \DeclareMathSymbol{\mho}{\mathord}{lasy}{"30} \DeclareMathSymbol{\Join}{\mathrel}{lasy}{"31} \DeclareMathSymbol{\Box}{\mathord}{lasy}{"32} \DeclareMathSymbol{\Diamond}{\mathord}{lasy}{"33} \DeclareMathSymbol{\leadsto}{\mathrel}{lasy}{"3B} \DeclareMathSymbol{\sqsubset}{\mathrel}{lasy}{"3C} \DeclareMathSymbol{\sqsupset}{\mathrel}{lasy}{"3D} \DeclareMathSymbol{\lhd}{\mathrel}{lasy}{"01} \DeclareMathSymbol{\unlhd}{\mathrel}{lasy}{"02} \DeclareMathSymbol{\rhd}{\mathrel}{lasy}{"03} \DeclareMathSymbol{\unrhd}{\mathrel}{lasy}{"04} \DeclareSymbolFontAlphabet{\bbold}{AMSb} \mathversion{oz} } \newbox\strutbox@ \def\strut@{\copy\strutbox@} \addto@hook\every@size{% \setbox\strutbox@\hbox{\lower.5\normallineskiplimit \vbox{\kern-\normallineskiplimit\copy\strutbox}}} \def\bBigg@#1#2{% \mbox{\ifcase#1\or\large\or\Large\or\LARGE\or\small\or\footnotesize\fi $#2$}\nulldelimiterspace\z@ \m@th} \addto@hook\every@size{\setbox\z@\vbox{\hbox{$($}\kern\z@}% \big@size 1.2\ht\z@} \newdimen\big@size \def\zBIG{\bBigg@{3}} \def\zBig{\bBigg@{2}} \def\zbig{\bBigg@{1}} \def\zsmall{\bBigg@{4}} \def\zSmall{\bBigg@{5}} \def\String#1{\hbox{`\texttt{#1}'}} \def\STRING#1{\hbox{``\texttt{#1}''}} \def\infix#1{\z@rel{{\underline{#1}}}} \def\word#1{\z@op{#1}} \def\keyword#1{\z@op{\mbox{\textrm{#1}}}} \def\boldword#1{\z@op{\mbox{\textbf{#1}}}} \def\underword#1{\z@op{{\underline{#1}}}} \def\underkeyword#1{\z@op{{\underline{\mbox{\textrm{#1}}}}}} \def\underboldword#1{\z@op{{\underline{\mbox{\textbf{#1}}}}}} \def\@setmcodes#1#2#3{{\count0=#1 \count1=#3 \loop \global\mathcode\count0=\count1 \ifnum \count0<#2 \advance\count0 by1 \advance\count1 by1 \repeat}} \@setmcodes{`A}{`Z}{"7441} \@setmcodes{`a}{`z}{"7461} \let\@mc=\mathchardef \mathcode`\;="8000 % Makes ; active in math mode {\catcode`\;=\active \gdef;{\semicolon\;}} \@mc\semicolon="603B \def\z@op#1{\mathop{\mathstrut{#1}}\nolimits} \def\z@bin#1{\mathbin{\mathstrut{#1}}} \def\z@rel#1{\mathrel{\mathstrut{#1}}} \def\z@bigop#1{\z@op{\zbig{#1}}} \def\z@bigbin#1{\z@bin{\zbig{#1}}} \def\z@bigrel#1{\z@rel{\zbig{#1}}} \def\z@Bigop#1{\z@op{\zBig{#1}}} \def\z@Bigbin#1{\z@bin{\zBig{#1}}} \def\z@Bigrel#1{\z@rel{\zBig{#1}}} \def\z@smallop#1{\z@op{\zsmall{#1}}} \def\z@smallbin#1{\z@bin{\zsmall{#1}}} \def\z@smallrel#1{\z@rel{\zsmall{#1}}} \def\_{\leavevmode \vbox{\hrule width0.4em}} \let\xforall=\forall \let\xexists=\exists \let\xlambda=\lambda \let\xmu=\mu \let\xsucc\succ \let\xprec\prec \let\dotaccent=\dot \let\sectionsymbol=\S \let\integral=\int \let\product\prod \def\p#1{\mathrel{\ooalign{\hfil$\mapstochar\mkern 5mu$\hfil\cr$#1$}}} \def\f#1{\mathrel{\ooalign{\hfil $\mapstochar\mkern 3mu\mapstochar\mkern 5mu$\hfil\cr$#1$}}} \@ifpackageloaded{lucbr}{% \DeclareMathSymbol{\doublebarwedge}{\mathbin}{symbols}{"D4} \DeclareMathSymbol{\lll}{\mathrel}{letters}{"DE} \DeclareMathSymbol{\ggg}{\mathrel}{letters}{"DF} \DeclareMathSymbol{\eth}{\mathrel}{operators}{"F0} }{% \let\rightleftharpoons\undefined \let\angle\undefined \DeclareMathSymbol\boxdot{\mathbin}{AMSa}{"00} \DeclareMathSymbol\boxplus{\mathbin}{AMSa}{"01} \DeclareMathSymbol\boxtimes{\mathbin}{AMSa}{"02} \DeclareMathSymbol\square{\mathord}{AMSa}{"03} \DeclareMathSymbol\blacksquare{\mathord}{AMSa}{"04} \DeclareMathSymbol\centerdot{\mathbin}{AMSa}{"05} \DeclareMathSymbol\lozenge{\mathord}{AMSa}{"06} \DeclareMathSymbol\blacklozenge{\mathord}{AMSa}{"07} \DeclareMathSymbol\circlearrowright{\mathrel}{AMSa}{"08} \DeclareMathSymbol\circlearrowleft{\mathrel}{AMSa}{"09} \DeclareMathSymbol\rightleftharpoons{\mathrel}{AMSa}{"0A} \DeclareMathSymbol\leftrightharpoons{\mathrel}{AMSa}{"0B} \DeclareMathSymbol\boxminus{\mathbin}{AMSa}{"0C} \DeclareMathSymbol\Vdash{\mathrel}{AMSa}{"0D} \DeclareMathSymbol\Vvdash{\mathrel}{AMSa}{"0E} \DeclareMathSymbol\vDash{\mathrel}{AMSa}{"0F} \DeclareMathSymbol\twoheadrightarrow{\mathrel}{AMSa}{"10} \DeclareMathSymbol\twoheadleftarrow{\mathrel}{AMSa}{"11} \DeclareMathSymbol\leftleftarrows{\mathrel}{AMSa}{"12} \DeclareMathSymbol\rightrightarrows{\mathrel}{AMSa}{"13} \DeclareMathSymbol\upuparrows{\mathrel}{AMSa}{"14} \DeclareMathSymbol\downdownarrows{\mathrel}{AMSa}{"15} \DeclareMathSymbol\upharpoonright{\mathrel}{AMSa}{"16} \DeclareMathSymbol\downharpoonright{\mathrel}{AMSa}{"17} \DeclareMathSymbol\upharpoonleft{\mathrel}{AMSa}{"18} \DeclareMathSymbol\downharpoonleft{\mathrel}{AMSa}{"19} \DeclareMathSymbol\rightarrowtail{\mathrel}{AMSa}{"1A} \DeclareMathSymbol\leftarrowtail{\mathrel}{AMSa}{"1B} \DeclareMathSymbol\leftrightarrows{\mathrel}{AMSa}{"1C} \DeclareMathSymbol\rightleftarrows{\mathrel}{AMSa}{"1D} \DeclareMathSymbol\Lsh{\mathrel}{AMSa}{"1E} \DeclareMathSymbol\Rsh{\mathrel}{AMSa}{"1F} \DeclareMathSymbol\rightsquigarrow{\mathrel}{AMSa}{"20} \DeclareMathSymbol\leftrightsquigarrow{\mathrel}{AMSa}{"21} \DeclareMathSymbol\looparrowleft{\mathrel}{AMSa}{"22} \DeclareMathSymbol\looparrowright{\mathrel}{AMSa}{"23} \DeclareMathSymbol\circeq{\mathrel}{AMSa}{"24} \DeclareMathSymbol\succsim{\mathrel}{AMSa}{"25} \DeclareMathSymbol\gtrsim{\mathrel}{AMSa}{"26} \DeclareMathSymbol\gtrapprox{\mathrel}{AMSa}{"27} \DeclareMathSymbol\multimap{\mathrel}{AMSa}{"28} \DeclareMathSymbol\therefore{\mathrel}{AMSa}{"29} \DeclareMathSymbol\because{\mathrel}{AMSa}{"2A} \DeclareMathSymbol\doteqdot{\mathrel}{AMSa}{"2B} \DeclareMathSymbol\triangleq{\mathrel}{AMSa}{"2C} \DeclareMathSymbol\precsim{\mathrel}{AMSa}{"2D} \DeclareMathSymbol\lesssim{\mathrel}{AMSa}{"2E} \DeclareMathSymbol\lessapprox{\mathrel}{AMSa}{"2F} \DeclareMathSymbol\eqslantless{\mathrel}{AMSa}{"30} \DeclareMathSymbol\eqslantgtr{\mathrel}{AMSa}{"31} \DeclareMathSymbol\curlyeqprec{\mathrel}{AMSa}{"32} \DeclareMathSymbol\curlyeqsucc{\mathrel}{AMSa}{"33} \DeclareMathSymbol\preccurlyeq{\mathrel}{AMSa}{"34} \DeclareMathSymbol\leqq{\mathrel}{AMSa}{"35} \DeclareMathSymbol\leqslant{\mathrel}{AMSa}{"36} \DeclareMathSymbol\lessgtr{\mathrel}{AMSa}{"37} \DeclareMathSymbol\backprime{\mathord}{AMSa}{"38} \DeclareMathSymbol\risingdotseq{\mathrel}{AMSa}{"3A} \DeclareMathSymbol\fallingdotseq{\mathrel}{AMSa}{"3B} \DeclareMathSymbol\succcurlyeq{\mathrel}{AMSa}{"3C} \DeclareMathSymbol\geqq{\mathrel}{AMSa}{"3D} \DeclareMathSymbol\geqslant{\mathrel}{AMSa}{"3E} \DeclareMathSymbol\gtrless{\mathrel}{AMSa}{"3F} \DeclareMathSymbol\sqsubset{\mathrel}{AMSa}{"40} \DeclareMathSymbol\sqsupset{\mathrel}{AMSa}{"41} \DeclareMathSymbol\vartriangleright{\mathrel}{AMSa}{"42} \DeclareMathSymbol\vartriangleleft{\mathrel}{AMSa}{"43} \DeclareMathSymbol\trianglerighteq{\mathrel}{AMSa}{"44} \DeclareMathSymbol\trianglelefteq{\mathrel}{AMSa}{"45} \DeclareMathSymbol\bigstar{\mathord}{AMSa}{"46} \DeclareMathSymbol\between{\mathrel}{AMSa}{"47} \DeclareMathSymbol\blacktriangledown{\mathord}{AMSa}{"48} \DeclareMathSymbol\blacktriangleright{\mathrel}{AMSa}{"49} \DeclareMathSymbol\blacktriangleleft{\mathrel}{AMSa}{"4A} \DeclareMathSymbol\vartriangle{\mathord}{AMSa}{"4D} \DeclareMathSymbol\blacktriangle{\mathord}{AMSa}{"4E} \DeclareMathSymbol\triangledown{\mathord}{AMSa}{"4F} \DeclareMathSymbol\eqcirc{\mathrel}{AMSa}{"50} \DeclareMathSymbol\lesseqgtr{\mathrel}{AMSa}{"51} \DeclareMathSymbol\gtreqless{\mathrel}{AMSa}{"52} \DeclareMathSymbol\lesseqqgtr{\mathrel}{AMSa}{"53} \DeclareMathSymbol\gtreqqless{\mathrel}{AMSa}{"54} \DeclareMathSymbol\Rrightarrow{\mathrel}{AMSa}{"56} \DeclareMathSymbol\Lleftarrow{\mathrel}{AMSa}{"57} \DeclareMathSymbol\veebar{\mathbin}{AMSa}{"59} \DeclareMathSymbol\barwedge{\mathbin}{AMSa}{"5A} \DeclareMathSymbol\doublebarwedge{\mathbin}{AMSa}{"5B} \DeclareMathSymbol\angle{\mathord}{AMSa}{"5C} \DeclareMathSymbol\measuredangle{\mathord}{AMSa}{"5D} \DeclareMathSymbol\sphericalangle{\mathord}{AMSa}{"5E} \DeclareMathSymbol\varpropto{\mathrel}{AMSa}{"5F} \DeclareMathSymbol\smallsmile{\mathrel}{AMSa}{"60} \DeclareMathSymbol\smallfrown{\mathrel}{AMSa}{"61} \DeclareMathSymbol\Subset{\mathrel}{AMSa}{"62} \DeclareMathSymbol\Supset{\mathrel}{AMSa}{"63} \DeclareMathSymbol\Cup{\mathbin}{AMSa}{"64} \DeclareMathSymbol\Cap{\mathbin}{AMSa}{"65} \DeclareMathSymbol\curlywedge{\mathbin}{AMSa}{"66} \DeclareMathSymbol\curlyvee{\mathbin}{AMSa}{"67} \DeclareMathSymbol\leftthreetimes{\mathbin}{AMSa}{"68} \DeclareMathSymbol\rightthreetimes{\mathbin}{AMSa}{"69} \DeclareMathSymbol\subseteqq{\mathrel}{AMSa}{"6A} \DeclareMathSymbol\supseteqq{\mathrel}{AMSa}{"6B} \DeclareMathSymbol\bumpeq{\mathrel}{AMSa}{"6C} \DeclareMathSymbol\Bumpeq{\mathrel}{AMSa}{"6D} \DeclareMathSymbol\lll{\mathrel}{AMSa}{"6E} \DeclareMathSymbol\ggg{\mathrel}{AMSa}{"6F} \DeclareMathDelimiter\ulcorner{4}{AMSa}{"70}{AMSa}{"70} \DeclareMathDelimiter\urcorner{5}{AMSa}{"71}{AMSa}{"71} \DeclareMathDelimiter\llcorner{4}{AMSa}{"78}{AMSa}{"78} \DeclareMathDelimiter\lrcorner{5}{AMSa}{"79}{AMSa}{"79} \xdef\yen {\noexpand\mathhexbox\hexnumber@\symAMSa 55 } \xdef\checkmark{\noexpand\mathhexbox\hexnumber@\symAMSa 58 } \xdef\circledR {\noexpand\mathhexbox\hexnumber@\symAMSa 72 } \xdef\maltese {\noexpand\mathhexbox\hexnumber@\symAMSa 7A } \DeclareMathSymbol\circledS{\mathord}{AMSa}{"73} \DeclareMathSymbol\pitchfork{\mathrel}{AMSa}{"74} \DeclareMathSymbol\dotplus{\mathbin}{AMSa}{"75} \DeclareMathSymbol\backsim{\mathrel}{AMSa}{"76} \DeclareMathSymbol\backsimeq{\mathrel}{AMSa}{"77} \DeclareMathSymbol\complement{\mathord}{AMSa}{"7B} \DeclareMathSymbol\intercal{\mathbin}{AMSa}{"7C} \DeclareMathSymbol\circledcirc{\mathbin}{AMSa}{"7D} \DeclareMathSymbol\circledast{\mathbin}{AMSa}{"7E} \DeclareMathSymbol\circleddash{\mathbin}{AMSa}{"7F} \DeclareMathSymbol\lvertneqq{\mathrel}{AMSb}{"00} \DeclareMathSymbol\gvertneqq{\mathrel}{AMSb}{"01} \DeclareMathSymbol\nleq{\mathrel}{AMSb}{"02} \DeclareMathSymbol\ngeq{\mathrel}{AMSb}{"03} \DeclareMathSymbol\nless{\mathrel}{AMSb}{"04} \DeclareMathSymbol\ngtr{\mathrel}{AMSb}{"05} \DeclareMathSymbol\nprec{\mathrel}{AMSb}{"06} \DeclareMathSymbol\nsucc{\mathrel}{AMSb}{"07} \DeclareMathSymbol\lneqq{\mathrel}{AMSb}{"08} \DeclareMathSymbol\gneqq{\mathrel}{AMSb}{"09} \DeclareMathSymbol\nleqslant{\mathrel}{AMSb}{"0A} \DeclareMathSymbol\ngeqslant{\mathrel}{AMSb}{"0B} \DeclareMathSymbol\lneq{\mathrel}{AMSb}{"0C} \DeclareMathSymbol\gneq{\mathrel}{AMSb}{"0D} \DeclareMathSymbol\npreceq{\mathrel}{AMSb}{"0E} \DeclareMathSymbol\nsucceq{\mathrel}{AMSb}{"0F} \DeclareMathSymbol\precnsim{\mathrel}{AMSb}{"10} \DeclareMathSymbol\succnsim{\mathrel}{AMSb}{"11} \DeclareMathSymbol\lnsim{\mathrel}{AMSb}{"12} \DeclareMathSymbol\gnsim{\mathrel}{AMSb}{"13} \DeclareMathSymbol\nleqq{\mathrel}{AMSb}{"14} \DeclareMathSymbol\ngeqq{\mathrel}{AMSb}{"15} \DeclareMathSymbol\precneqq{\mathrel}{AMSb}{"16} \DeclareMathSymbol\succneqq{\mathrel}{AMSb}{"17} \DeclareMathSymbol\precnapprox{\mathrel}{AMSb}{"18} \DeclareMathSymbol\succnapprox{\mathrel}{AMSb}{"19} \DeclareMathSymbol\lnapprox{\mathrel}{AMSb}{"1A} \DeclareMathSymbol\gnapprox{\mathrel}{AMSb}{"1B} \DeclareMathSymbol\nsim{\mathrel}{AMSb}{"1C} \DeclareMathSymbol\ncong{\mathrel}{AMSb}{"1D} \DeclareMathSymbol\nsubseteqq{\mathrel}{AMSb}{"22} \DeclareMathSymbol\nsupseteqq{\mathrel}{AMSb}{"23} \DeclareMathSymbol\subsetneqq{\mathrel}{AMSb}{"24} \DeclareMathSymbol\supsetneqq{\mathrel}{AMSb}{"25} \DeclareMathSymbol\subsetneq{\mathrel}{AMSb}{"28} \DeclareMathSymbol\supsetneq{\mathrel}{AMSb}{"29} \DeclareMathSymbol\nsubseteq{\mathrel}{AMSb}{"2A} \DeclareMathSymbol\nsupseteq{\mathrel}{AMSb}{"2B} \DeclareMathSymbol\nparallel{\mathrel}{AMSb}{"2C} \DeclareMathSymbol\nmid{\mathrel}{AMSb}{"2D} \DeclareMathSymbol\nshortmid{\mathrel}{AMSb}{"2E} \DeclareMathSymbol\nshortparallel{\mathrel}{AMSb}{"2F} \DeclareMathSymbol\nvdash{\mathrel}{AMSb}{"30} \DeclareMathSymbol\nVdash{\mathrel}{AMSb}{"31} \DeclareMathSymbol\nvDash{\mathrel}{AMSb}{"32} \DeclareMathSymbol\nVDash{\mathrel}{AMSb}{"33} \DeclareMathSymbol\ntrianglerighteq{\mathrel}{AMSb}{"34} \DeclareMathSymbol\ntrianglelefteq{\mathrel}{AMSb}{"35} \DeclareMathSymbol\ntriangleleft{\mathrel}{AMSb}{"36} \DeclareMathSymbol\ntriangleright{\mathrel}{AMSb}{"37} \DeclareMathSymbol\nleftarrow{\mathrel}{AMSb}{"38} \DeclareMathSymbol\nrightarrow{\mathrel}{AMSb}{"39} \DeclareMathSymbol\nLeftarrow{\mathrel}{AMSb}{"3A} \DeclareMathSymbol\nRightarrow{\mathrel}{AMSb}{"3B} \DeclareMathSymbol\nLeftrightarrow{\mathrel}{AMSb}{"3C} \DeclareMathSymbol\nleftrightarrow{\mathrel}{AMSb}{"3D} \DeclareMathSymbol\divideontimes{\mathbin}{AMSb}{"3E} \DeclareMathSymbol\varnothing{\mathord}{AMSb}{"3F} \DeclareMathSymbol\mho{\mathord}{AMSb}{"66} \DeclareMathSymbol\eth{\mathord}{AMSb}{"67} \DeclareMathSymbol\eqsim{\mathrel}{AMSb}{"68} \DeclareMathSymbol\beth{\mathord}{AMSb}{"69} \DeclareMathSymbol\gimel{\mathord}{AMSb}{"6A} \DeclareMathSymbol\daleth{\mathord}{AMSb}{"6B} \DeclareMathSymbol\lessdot{\mathrel}{AMSb}{"6C} \DeclareMathSymbol\gtrdot{\mathrel}{AMSb}{"6D} \DeclareMathSymbol\ltimes{\mathbin}{AMSb}{"6E} \DeclareMathSymbol\rtimes{\mathbin}{AMSb}{"6F} \DeclareMathSymbol\shortmid{\mathrel}{AMSb}{"70} \DeclareMathSymbol\shortparallel{\mathrel}{AMSb}{"71} \DeclareMathSymbol\smallsetminus{\mathbin}{AMSb}{"72} \DeclareMathSymbol\thicksim{\mathrel}{AMSb}{"73} \DeclareMathSymbol\thickapprox{\mathrel}{AMSb}{"74} \DeclareMathSymbol\approxeq{\mathrel}{AMSb}{"75} \DeclareMathSymbol\succapprox{\mathrel}{AMSb}{"76} \DeclareMathSymbol\precapprox{\mathrel}{AMSb}{"77} \DeclareMathSymbol\curvearrowleft{\mathrel}{AMSb}{"78} \DeclareMathSymbol\curvearrowright{\mathrel}{AMSb}{"79} \DeclareMathSymbol\digamma{\mathord}{AMSb}{"7A} \DeclareMathSymbol\varkappa{\mathord}{AMSb}{"7B} \DeclareMathSymbol\hslash{\mathord}{AMSb}{"7D} \DeclareMathSymbol\hbar{\mathord}{AMSb}{"7E} \DeclareMathSymbol\backepsilon{\mathrel}{AMSb}{"7F} } \def\interleave{{\parallel\!\!\vert}} \def\shortinterleave{\z@rel{\mathord\shortmid\mathord\shortparallel}} \def\napprox{\not\approx} \let\restriction\upharpoonright \let\Doteq\doteqdot \let\doublecup\Cup \let\llless\lll \let\gggtr\ggg \let\doublecap\Cap \def \nat {{\bbold N}} \def \integer {{\bbold Z}} \def \natone {{\bbold N}_1} \def \real {{\bbold R}} \def \bool {{\bbold B}} \let \divides \div \def \div {\z@bin{\mathrm{div}}} \def \mod {\z@bin{\mathrm{mod}}} \def \succ {\word{succ}} \def \expon {^} \let \num \integer \let \nplus \natone \def \lnot {\neg\;} \def \land {\z@rel{\wedge}} \def \lor {\z@rel{\vee}} \let \imp \Rightarrow \let\iff \Leftrightarrow \def \all {\z@op{\xforall}} \def \exi {\z@op{\xexists}} \def \exione {\exists_1} \@ifpackageloaded{lucbr}{% \DeclareMathSymbol{\nexi}{0}{arrows}{"20} }{% \DeclareMathSymbol{\nexi}{\mathord}{AMSb}{"40} } \def \dot {\z@rel{\bullet}} \def \true {\keyword{true}} \def \false {\keyword{false}} \let \cond \rightarrow \let \spot \dot \mathcode`\@="8000% make @ active in mathmode {\catcode`\@=\active \gdef@{\dot}} \let \implies \imp \let \forall \all \let \exists \exi \let \nexists \nexi \let \emptyset \varnothing \def \varemptyset {\{\,\}} \def \pset {\z@op{\bbold P}} \def \psetone {\pset_1} \def \fset {\z@op{\bbold F}} \def \fsetone {\fset_1} \def \sset {\z@op{\bbold S}} \let \mem \in \def \nem {\not\mem} \def \uni {\z@bin\cup} \def \int {\z@bin\cap} \let \prod \times \def \min {\word{min}} \def \max {\word{max}} \def \duni {\z@Bigop{\lower0.25ex\hbox{$\uni$}}} \def \dint {\z@Bigop{\lower0.25ex\hbox{$\int$}}} \def \upto {\z@bin{\ldotp\ldotp}} \let \psubs \subset \let \subs \subseteq \let \psups \supset \let \sups \supseteq \def \diff {\z@bin{\backslash}} \let \cross \prod \let \notin \nem \let \nmem \nem \let \union \uni \let \inter \int \let \power \pset \let \finset \fset \let \dunion \duni \let \dinter \dint \def \lambda {\z@op{\xlambda}} \def \mu {\z@op{\xmu}} \def \dom {\keyword{dom}} \def \ran {\keyword{ran}} \def \id {\keyword{id}} \@ifpackageloaded{lucbr}{% \DeclareMathSymbol{\dres}{\mathbin}{letters}{"2F} \DeclareMathSymbol{\rres}{\mathbin}{letters}{"2E} }{% \DeclareMathSymbol{\dres}{\mathbin}{AMSa}{"43} \DeclareMathSymbol{\rres}{\mathbin}{AMSa}{"42} } \def \dsub {\mathbin{\rlap{\raise.05ex\hbox{$-$}}{\dres}}} \def \rsub {\mathbin{\rlap{\raise.05ex\hbox{$-$}}{\rres}}} \let \fovr \oplus \let \cmp \circ \def \fcmp {\mathbin{\raise 0.6ex\hbox{\oalign{\hfil$\scriptscriptstyle \mathrm{o}$\hfil\cr\hfil$\scriptscriptstyle\mathrm{9}$\hfil}}}} \def \inv {^{-1}} \def \limg {(\!|} \def \rimg {|\!)} \let \map \mapsto \let \rel \leftrightarrow \let \tfun \rightarrow \let \tinj \rightarrowtail \def \tsur {\mathrel{\ooalign{$\tfun$\hfil\cr$\mkern4mu\tfun$}}} \def \pfun {\p\tfun} \def \pinj {\p\tinj} \def \psur {\p\tsur} \def \ffun {\f\tfun} \def \finj {\f\tinj} \def \bij {\mathrel{\ooalign{$\tinj$\hfil\cr$\mkern5mu\tfun$}}} \def \tcl {^+} \def \rtcl {^*} \def \iter {^} \let \comp \fcmp \let \ndres \dsub \let \nrres \rsub \let \fun \tfun \let \inj \tinj \let \surj \tsur \let \psurj \psur \let \llless \lll \let \gggtr \ggg \def \interleave {{\parallel\!\!\vert}} \def \shortinterleave {\z@rel{\mathord\shortmid\mathord\shortparallel}} \let \restriction \upharpoonright \def \napprox {\not\approx} \def \seq {\keyword{seq}} \def \seqone {\seq_1} \def \emptyseq {\lseq\,\rseq} \let \lseq \langle \let \rseq \rangle \def \head {\word{head}} \def \tail {\word{tail}} \def \front {\word{front}} \def \last {\word{last}} \def \rev {\word{rev}} \def \squash {\word{squash}} \def \next {\keyword{next}} \def \inseq {\keyword{in}} \@ifpackageloaded{lucbr}{% \DeclareMathSymbol{\sres}{2}{arrows}{"75} \DeclareMathSymbol{\ires}{2}{arrows}{"76} \DeclareMathSymbol{\@@cat}{\mathbin}{operators}{"5F} }{% \DeclareMathSymbol{\@@cat}{\mathbin}{AMSa}{"61} \DeclareMathSymbol{\sres}{\mathbin}{AMSa}{"16} \DeclareMathSymbol{\ires}{\mathbin}{AMSa}{"18} } \def \cat {\mathbin{\raise 0.8ex\hbox{$\mathchar\@@cat$}}} \def \ssub {\z@bin{\rlap{$-$}{\sres}}} \def \isub {\z@bin{\rlap{$-$}{\ires}}} \def \dcat {\z@op{\cat/}} \def \dovr {\z@op{\fovr/}} \def \dcmp {\z@op{\fcmp/}} \let \prefix \subseteq \def \suffix {\keyword{suffix}} \def \seqi {\keyword{seq_\infty}} \def \partitions {\keyword{partitions}} \def \disjoint {\keyword{disjoint}} \def \subseq {\keyword{subseq}} \let \filter \sres \def \lsch {\z@bigop{[}} \def \rsch {\z@bigop{]}} \def \dparallel {\z@bigop{\parallel}\limits} \def \zand {\z@bigbin\land} \def \zor {\z@bigbin\lor} \def \zcmp {\z@bigbin\fcmp} \def \zexi {\z@bigop\exists} \def \zall {\z@bigop\forall} \def \znot {\z@bigop\neg} \def \zbar {\z@bigbin\cbar} \def \zfor {/} \def \zhide {\z@bigbin\backslash} \def \zimp {\z@bigrel\imp} \def \zeq {\z@bigrel\iff} \def \zovr {\z@bigrel\oplus} \def \zpipe {\z@bigbin{\mathord>\!\!\mathord>}} \def \pre {\keyword{pre}} \def \pred {\keyword{pred}} \def \post {\keyword{post}} \def \zproject {\z@bigbin\sres} \def\rename{\@ifnextchar*{\z@rename}{\z@@rename}} \def\z@rename*[#1/#2]{\left[#1 \over #2\right]} \def\z@@rename[#1/#2]{\left[#1 \zfor #2\right]} \let \project \zproject \let \import \sres \let \semi \zcmp \let \hide \zhide \let\buni\uplus \def \emptybag {\lbag\:\rbag} \def \lbag {[\![} \def \rbag {]\!]} \def \bag {\keyword{bag}} \def \items {\word{items}} \let \inbag \inseq \def \bagcount {\word{count}} \def \ddef {\z@rel{\;::=\;}} \def \bbar {\z@bigrel{|}} \let \cbar \mid \def \lang {\langle\!\langle} \def \rang {\rangle\!\rangle} \def \sdef {\z@rel{\widehat=}} \def \defs {\z@smallrel{==}} \def \varsdef {\z@rel\triangleq} \let \sdefs \sdef \mathcode`\|=\mid \let \ldata \lang \let \rdata \rang \def \lblot {\langle\!|} \def \rblot {|\!\rangle} \def \IMP {\boldword{Import}} \let \env \Rrightarrow \def \zlet {\boldword{let}} \def \zin {\boldword{in}} \def \zwhere {\boldword{where}} \def\HOLE{\z@op{\hbox{$\lll\star\star\star\ggg$}}} \def\landd{} % to support qzed editor \def\semid{} % to support qzed editor \def\qzed{\ifz@inclass\else\zed\fi} \def\endqzed{\ifz@inclass\else\endzed\fi} \def\qua{\mbox{::}} \def\redef{\mbox{\textbf{~redef}}} \def\Init{I\!\mbox{\footnotesize\emph{NIT}}} \def\Exit{E\!\mbox{\footnotesize\emph{XIT}}} \def\Internal{I\!\mbox{\footnotesize\emph{NTERNAL}}} \def\Aux{A\!\mbox{\footnotesize\emph{UX}}} \def\intern{\mbox{\textsf{i}}} \def\thrm{\z@rel\vdash} \def\qed{\zsmall\Box} \let\Qed\Box \let\QED\square \def\BLACKQED{\zsmall\blacksquare} \let\ETH\qed \def\TH{\boldword{Theorem}} \def\LE{\boldword{Lemma}} \def\PR{\boldword{Proof}} \def\refines{\z@rel\sqsupseteq} \def\defines{\z@rel\sqsubseteq} \def\weakrefine{\z@rel{\raise0.2ex\rlap{\hbox{$\sqsupset$}}\lower1ex\hbox{$\sim$}}} \def\weakdefine{\z@rel{\raise0.2ex\rlap{\hbox{$\sqsubset$}}\lower1ex\hbox{$\sim$}}} \let\shows\thrm \def\childof{\z@rel\xsucc} \def\parentof{\z@rel\xprec} \let\weaksubclass\succsim \let\weaksupclass\precsim \def\hasa{\z@rel{\mathord\xsucc\!\!\!\mathord\xsucc}} \def\instancein{\z@rel{\mathord\xprec\!\!\!\mathord\xprec}} \def\subtype{\z@rel\sqsubset} \def\subtypeeq{\z@rel\sqsubseteq} \def\suptype{\z@rel\sqsupset} \def\suptypeeq{\z@rel\sqsupseteq} \let\inherits\childof \let\subclass\childof \let\isa\childof \let\supclass\parentof \let\instantiates\hasa \let\islikea\weaksubclass \def\atnext{\rlap{$\zSmall\bigcirc$}\kern0.01em\rlap{$\zSmall\bigcirc$}\kern0.01em\zSmall\bigcirc} \def\atlast{\rlap{$\zSmall\bigcirc$}\kern0.01em\rlap{$\zSmall\bigcirc$}\kern0.01em\rlap{$\kern0.01em\mathord-$}\zSmall\bigcirc} \def\always{\lower0.37ex\hbox{$\zbig\Box$}} \def\uptilnow{\rlap{$\kern0.02em\mathord-$}\lower0.37ex\hbox{$\zbig\Box$}} \def\eventually{\lower0.37ex\hbox{$\zbig\Diamond$}} \def\previously{\rlap{$\kern0.04em\mathord-$}\lower0.37ex\hbox{$\zbig\Diamond$}} \let\henceforth\always \def \mono {\keyword{monotonic}} \def \porder {\keyword{partial\_order}} \def \torder {\keyword{total\_order}} \newbox\z@combox\newdimen\z@wdcalc \def\comment{\@ifnextchar*{\z@leftcomment}{\z@comment}} \def\z@comment#1{$\z@stopfield\z@addfield\z@startfield$% \global\setbox\z@combox\hbox{\quad[{\sf #1}]}\z@wdcalc=\wd\z@combox% \advance\z@wdcalc by \wd\z@curline\advance\z@wdcalc by \z@curindent% \advance\z@wdcalc by \zedleftsep\advance\z@wdcalc by \zedlinethickness% \advance\z@wdcalc by 2\zedindent\ifdim\z@wdcalc>\displaywidth\\% \fi&\box\z@combox\ignorespaces} \def\z@leftcomment*#1{\hbox{[{\sf #1}]}} \newcount\z@stackmin \newcount\z@stackmax \newcount\z@stacktop \newdimen\@gtempa \z@stackmin=\allocationnumber \newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa \newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa \newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa \newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa \newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa \newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa \newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa \newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa \newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa \newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa \newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa \newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa\newdimen\@gtempa \newdimen\@getempa \z@stackmax=\allocationnumber \dimen\z@stackmin=0pt \newbox\z@curline \newdimen\z@curindent \dimen\z@curindent=0pt \def\z@space{{}\;{}} \newbox\z@curfield \def\z@startline{\setbox\z@curline\hbox{}% \global\z@curindent\dimen\z@stacktop \z@startfield\ignorespaces} \def\z@stopline{\z@stopfield \z@addfield \hbox{\hskip\z@curindent \box\z@curline}} \def\z@startfield{\global\setbox\z@curfield\hbox\bgroup} \def\z@stopfield{\egroup} \def\z@addfield{\global\setbox\z@curline\hbox{\unhbox \z@curline\unhbox\z@curfield}} \def\z@pushmargin{\hbox{\kern0pt}$% \z@stopfield \z@addfield \ifnum \z@stacktop < \z@stackmax \global\advance\z@stacktop \@ne \else \@latexerr{Z margin stack overflow (too many \string\M's)} \@ehd \fi \global\dimen\z@stacktop\z@curindent \global\advance\dimen\z@stacktop \wd\z@curline \z@startfield\ignorespaces $\relax} \def\z@popmargin{\ifnum \z@stacktop > \z@stackmin \global\advance\z@stacktop \m@ne \ignorespaces \else \@latexerr{Z Margin stack underflow (too many \string\O's)} \@ehd \fi} \def\M{\z@pushmargin} \def\O{\z@popmargin} \def\S{\z@space} \z@stacktop\z@stackmin \newdimen\zedindent \zedindent=\leftmargini \newdimen\zedleftsep \zedleftsep=1em \newdimen\zedtab \zedtab=2em \newdimen\zedbar \zedbar=8em \newdimen\zedlinethickness \zedlinethickness=0.4pt \newdimen\zedcornerheight \zedcornerheight=0pt \newcount\z@cols \newif\ifz@firstline \z@firstlinefalse \newif\ifz@inclass \z@inclassfalse \newif\ifz@inenv \z@inenvfalse \newif\ifz@leftmargin \z@leftmargintrue \newif\ifz@incols \z@incolsfalse \newif\ifleftnames \leftnamesfalse \def\leftschemas{\leftnamestrue} \newif\ifz@inbox \z@inboxfalse \newskip\zedbaselineskip \zedbaselineskip\baselineskip \newbox\zstrutbox \setbox\zstrutbox=\copy\strutbox \def\zstrut{\relax\ifmmode\copy\zstrutbox\else\unhcopy\zstrutbox\fi} \def\zedbaselinestretch{1} \newcount\interzedlinepenalty \interzedlinepenalty=10000 %never break \newcount\preboxpenalty \preboxpenalty=0 %break easily \newcount\forcepagepenalty \forcepagepenalty=-10000 %always break \def\zedsize#1{\def\z@size{#1}} \def\z@size{} \newskip\z@adskip\newskip\z@bdskip\newskip\z@adsskip\newskip\z@bdsskip \def\z@changesize{% \z@adskip\abovedisplayskip\z@bdskip\belowdisplayskip% save skips \z@adsskip\abovedisplayshortskip\z@bdsskip\belowdisplayshortskip \z@size % change size \abovedisplayskip\z@adskip\belowdisplayskip\z@bdskip% restore skips \abovedisplayshortskip\z@adsskip\belowdisplayshortskip\z@bdsskip} \def\z@zeroskips{\abovedisplayskip\z@\belowdisplayskip\z@ \abovedisplayshortskip\z@\belowdisplayshortskip\z@} \def\z@narrow{\advance\linewidth by -\zedindent} \def\z@wide{\advance\linewidth by \zedindent} \def\z@hrulefill{\leaders\hrule height\zedlinethickness\hfill} \def\z@topline#1{\omit\@ifnextchar[{\z@@topline{#1}}{\z@@topline{#1}[]}} \def\z@@topline#1[#2]{\hbox to\linewidth{\zstrut\ifleftnames\else \vrule height\zedlinethickness width\zedlinethickness \hbox to\zedleftsep{\z@hrulefill}\fi#1\z@hrulefill \smash{\vrule height\zedlinethickness width\zedlinethickness depth\zedcornerheight}\hbox{\sf #2}}\cr} \def\z@dbltopline#1{\omit\@ifnextchar[{\z@@dbltopline{#1}}{\z@@dbltopline{#1}[]}} \def\z@@dbltopline#1[#2]{\z@@topline{#1}[#2]% \noalign{\kern-\baselineskip \kern-\zedlinethickness \kern-\doublerulesep \nobreak}% \omit\z@@topline{\hphantom{#1}}[\hphantom{#2}]% \noalign{\kern\doublerulesep \kern\zedlinethickness \nobreak}} \def\z@botline{\also\omit\hbox to\linewidth{\z@hrulefill \smash{\vrule height\zedcornerheight width\zedlinethickness depth 0pt}}\cr} \def\z@@botline[#1]{\hbox to\linewidth{\vrule\z@hrulefill\hbox{\sf\smash{#1}}}\also} \def\zedline{\also\omit\@ifnextchar[{\z@@botline}{\z@@botline[]}} \def\where{\also \omit \hbox to\zedbar{\z@hrulefill}\cr\also} \let \ST \where \def\z@left{\ifz@inbox\vrule width\zedlinethickness\hskip\zedleftsep\fi} \def\z@env{\global\z@firstlinetrue\z@changesize $$\z@inenvtrue\baselineskip\zedbaselineskip \parskip=0pt\lineskip=0pt\z@narrow \advance\displayindent by \zedindent \def\\{\crcr}% Must have \def and not \let for nested alignments. \everycr={\noalign{\ifz@firstline \global\z@firstlinefalse \else \penalty\interzedlinepenalty \fi}} \tabskip=0pt} \def\endz@env{$$\global\@ignoretrue} \def\z@format{\halign to\linewidth\bgroup% \zstrut\z@left\z@startline\ignorespaces$\@lign##$\z@stopline\hfil% \tabskip=0pt plus1fil% &\hbox to 0pt{\hss\@lign##}\tabskip=0pt\cr} \def\z@boxenv{\z@narrow\let\also=\als@ \let\Also=\Als@ \let\ALSO=\ALS@ \z@inboxtrue \predisplaypenalty=\preboxpenalty \z@env\z@format} \def\z@outnonbox{\z@outclasscheck\z@leavevmode\z@env} \def\z@inoutbox{\z@leavevmode\z@makeouter\z@inclassfalse\z@boxenv} \def\@but{\noalign{\nointerlineskip}} \def\z@nopar{\global\@endpetrue} \def\z@leavevmode{\ifvmode\if@inlabel\indent\else\if@noskipsec\indent\else \if@nobreak\global\@nobreakfalse\everypar={}\fi {\parskip=0pt\noindent}\fi\fi\fi} \def\also{\crcr\noalign{\vskip\jot}} \def\Also{\crcr\noalign{\vskip2\jot}} \def\ALSO{\Also\Also} \def\als@{\crcr\@but\omit\vrule height\jot width\zedlinethickness \cr \@but} \def\Als@{\crcr\@but\omit\vrule height2\jot width\zedlinethickness \cr \@but} \def\ALS@{\crcr\@but\omit\vrule height4\jot width\zedlinethickness \cr \@but} \def\znewpage{\also\noalign{\penalty\forcepagepenalty}\also} \def\zbreak{\also\noalign{\penalty\interdisplaylinepenalty\vskip-\jot}\also} \def\Zbreak{\also\noalign{\penalty\interdisplaylinepenalty}\also} \def\ZBREAK{\Also\noalign{\penalty\interdisplaylinepenalty}\Also} \def\t#1{\hskip #1\zedtab} \def\c#1#2{\hbox to #1\zedtab{$#2$\hfil}} \def\flushr#1{\crcr\quad\cr} \def\z@inclasscheck{\ifz@inclass\else \@latexerr{This Z environment is only allowed within a class} {Perhaps you forgot to include a \string\begin\string{class\string} somewhere^^Jor you are trying to print a file that needs updating.^^J\@ehc} \fi} \def\z@outclasscheck{\ifz@inclass \@latexerr{This Z environment is not allowed inside a class} {This environment doesn't really make sense within a class.^^J% If you really want it then I'll try my best to fit in in.^^J\@ehc}\else \ifz@inenv \@latexerr{New Z environment declared before previous one is completed} {I suspect that you've forgotten to finish the last environment.^^J% You are trying to nest environments and this can only be done inside classes^^J% besides, the environment you have started isn't valid within classes any way.^^JI suggest that you type \space X \space to quit and then correct your document.} \fi\fi} \def\z@makeouter{\ifz@inenv\ifz@inclass\z@inenvfalse \hskip-\zedleftsep \advance\linewidth by -\zedlinethickness \zedindent=\zedleftsep \zedleftsep=0.8\zedleftsep \zedbar=0.8\zedbar \zedtab=0.8\zedtab \minipage[b]{\linewidth}\z@zeroskips \else\@latexerr{Incorrect place for Z environment; nesting is allowed only inside classes} {You've either forgotten to finish the last environment,^^J% you've forgotten to include a \string\begin\string{class\string} somewhere^^J% or you are trying to print a file that needs updating.^^J% (Then again, you might just be trying to do something^^J% that the author of these macros didn't intend you to do)^^J\@ehc} \fi\else\minipage[b]{\linewidth}\fi} \def \z@makeinner{\endminipage%\par %% removed that \par SPQR 14.6.94 %% but it may have been vital :-} \global\z@curindent\z@} \def \classbreak{\also\egroup$$\vskip -\ht\zstrutbox \vskip -\abovedisplayskip\vskip -\belowdisplayskip\z@wide\z@boxenv\also} \def\zed{\z@outnonbox\z@inboxfalse\z@format} \def\endzed{\crcr\egroup\endz@env} \let\[=\zed \def\]{\crcr\egroup$$\ignorespaces} \def\argue{\z@outnonbox\interzedlinepenalty=\interdisplaylinepenalty \openup 1\jot \z@format \noalign{\vskip-\jot}}% equal vspace above and below argue display \let\endargue=\endzed \def\infrule{\z@outnonbox\halign\bgroup \zstrut\quad$\@lign##$\quad\hfil&\quad\@lign##\hfil\cr} \let\endinfrule=\endzed \def\derive{\crcr\also\@but\omit\z@hrulefill% \@ifnextchar[{\z@sidecondition}{\cr\also\@but}} \def\Derive{\crcr\also\@but\omit\z@hrulefill\cr\@but \noalign{\kern-\dp\zstrutbox \kern\doublerulesep \nobreak}% \omit\derive} \def\z@sidecondition[#1]{&$\smash{\lower 0.2ex\hbox{$[\;#1\;]$}}$\cr\also\@but} \def\syntax{\z@outnonbox\halign\bgroup \zstrut$\@lign##$\hfil &\hfil$\@lign{}##{}$\hfil &$\@lign##$\hfil &\qquad\@lign-- ##\hfil\cr} \let\endsyntax=\endzed \def\schema#1{\z@inoutbox\z@topline{$\,#1\,$}} \def\endschema{\z@botline \endzed \z@makeinner \z@nopar} \@namedef{schema*}{\leftnamesfalse\z@inoutbox\z@topline{}} \expandafter\let\csname endschema*\endcsname=\endschema \def\genschema#1#2{\z@inoutbox\z@topline{$\,#1\:[#2]\,$}} \let\endgenschema=\endschema \def\axdef{\z@inoutbox} \def\endaxdef{\endzed\z@makeinner} \def\uniqdef{\leftnamesfalse\z@inoutbox\z@dbltopline{}} \let\enduniqdef=\endschema \def\gendef#1{\leftnamesfalse\z@inoutbox\z@dbltopline{$\,[#1]\,$}} \let\endgendef=\endschema \def\class#1{\z@leavevmode\z@makeouter\z@inclasstrue \z@boxenv\z@topline{$\,#1\,$}} \let\endclass\endschema \def\op{\z@inclasscheck\schema} \let\endop\endschema \def\state{\z@inclasscheck\vbox\bgroup\vskip-\ht\zstrutbox\vbox\bgroup\hbox\bgroup\@nameuse{schema*}} \def\endstate{\endschema\egroup\egroup\egroup} \def\init{\z@inclasscheck\schema{\Init}} \let\endinit\endschema \def\sidebyside{\@ifnextchar[{\z@columns}{\z@columns[2]}} \def\z@columns[#1]{\z@leavevmode\z@cols#1 \z@makeouter\z@narrow% $$\lineskip=0pt\z@incolstrue \predisplaysize\maxdimen \ifz@leftmargin\hskip-\zedindent\z@leftmarginfalse\fi \setbox0=\hbox to \linewidth\bgroup\z@zeroskips% \divide\zedbar by \z@cols \divide\zedleftsep by \z@cols \divide\zedtab by \z@cols \divide\linewidth by \z@cols \minipage[t]{\linewidth}\z@wide} \def\nextside{\endminipage\hss\minipage[t]{\linewidth}\z@wide} \newdimen\z@temp \def\endsidebyside{\endminipage\egroup \z@temp\ht0 \advance\z@temp by \dp0\advance\z@temp by-\dp\zstrutbox \hbox{\raise\z@temp\box0}\endz@env\z@makeinner\z@nopar} \def\zpar{\z@leavevmode \ifz@inenv\z@inclasstrue\fi% fudge to let zpar in all boxes \z@makeouter\z@changesize \advance\linewidth by -\z@curindent \advance\linewidth by -\wd\z@curline \hskip-\wd\z@curline\advance\linewidth by -\zedindent$$ \ifz@leftmargin\hskip-\zedindent\fi% adjustment for first column \advance\displayindent by \zedindent \advance\displaywidth by -\zedindent \advance\displayindent by \z@curindent \advance\displayindent by \wd\z@curline \advance\displaywidth by -\z@curindent \advance\displaywidth by -\wd\z@curline \global\setbox\z@curline\hbox{} \z@narrow\minipage[b]{\linewidth}\hfil\break} \def\endzpar{\endminipage$$\z@makeinner\z@nopar} \def \classcom{\zpar\sf} \let \endclasscom=\endzpar \def\proof{\zpar$\PR$\zpar} \def\endproof{\endzpar\endzpar} \def\zseq#1{\lseq #1 \rseq} \def\zset#1{\{ #1 \}} \def\zimg#1{\limg #1 \rimg} \def\zsch#1{\lsch #1 \rsch} \def\zimgset#1{\zimg\zset{#1}} \endinput %% %% End of file `oz.sty'.