\def\textalpha{\ensuremath{\alpha}}
\def\textbeta{\ensuremath{\beta}}
\def\mathbbm#1{\ensuremath{\mathbb{#1}}}
%\def\textalpha{\ensuremath{\alpha}}
\def\texttau{\ensuremath{\tau}}
\def\textSigma{\ensuremath{\Sigma}}
\def\textsigma{\ensuremath{\sigma}}
\def\textphi{\ensuremath{\phi}}
\def\textlambda{\ensuremath{\lambda}}
\def\textLambda{\ensuremath{\Lambda}}
\def\textepsilon{\ensuremath{\epsilon}}
\def\textPi{\ensuremath{\Pi}}
\def\textGamma{\ensuremath{\Gamma}}
\def\textDelta{\ensuremath{\Delta}}
\def\textPhi{\ensuremath{\Phi}}
\def\texteta{\ensuremath{\eta}}
\def\textrho{\ensuremath{\rho}}
\def\textpsi{\ensuremath{\psi}}
\def\textdelta{\ensuremath{\delta}}
\def\textpi{\ensuremath{\pi}}
\def\textPsi{\ensuremath{\Psi}}
\def\textiota{\ensuremath{\iota}}
\def\textomega{\ensuremath{\omega}}
\def\textOmega{\ensuremath{\Omega}}
\def\textmu{\ensuremath{\mu}}
\def\textTheta{\ensuremath{\Theta}}
\def\texttheta{\ensuremath{\theta}}
\def\eqbydef{\ensuremath{\stackrel{\mathrm{def}}{=}}}
