% propositional constants
\def\cand{\ensuremath{\text{\bf\mbox{ cand }}}}
\def\land{\ensuremath{\wedge}}
\def\lor{\ensuremath{\vee}}
\def\limp{\ensuremath{\Rightarrow}}
\def\leq{\ensuremath{\equiv}}
\def\fp#1{\ensuremath{\mathrm{\bf FP\ }{#1}}}
\def\pvsimp{\ensuremath{\Rightarrow}}
\def\lneg{\ensuremath{\sim}}
\def\ltrue{\ensuremath{\top}}
\def\lfalse{\ensuremath{\bot}}

% temporal constants
\def\forever{\ensuremath{\Box}}
\def\eventually{\ensuremath{\Diamond}}

% quantifying
\def\quant#1{\ensuremath{\langle{#1}\rangle}}
\def\qchoice{\ensuremath{\eta}}
\def\theone{\ensuremath{\iota}}
\def\xquant#1#2#3#4{\ensuremath{\langle{#1\ } {#2}:{#3}:{#4}\rangle}}


% proof
\def\follows{\ensuremath{\vdash}}
\def\infrule#1#2#3{\frac{\ #1\ }{\ #2\ }\ {#3}}


% misc
\def\SC{\emph{Sequent Calculus}}
\def\LC{\emph{L\'ogica Cl\'assica}}
\def\CL{\emph{Classical Logic}}
\def\pvs{\emph{PVS}}
