\font\zz=cmu10
\font\zzz=cmmib10
\font\zzzz=cmbx10

\def\pmb#1{\setbox0=\hbox{#1}%
  \kern-.025em\copy0\kern-\wd0
  \kern.05em\copy0\kern-\wd0
  \kern-.025em\raise.0433em\box0 }

\def\bp{\pmb{{\zz\$}}}

\def\bfeta{\hbox{\zzz\char'021}}	%{\pmb{$\eta$}}
\def\balpha{\hbox{\zzz\char'013}}	%{\pmb{$\alpha$}}
\def\bbeta{\hbox{\zzz\char'014}}	%{\pmb{$\beta$}}
\def\bgamma{\hbox{\zzz\char'015}}	%{\pmb{$\gamma$}}
\def\bdelta{\hbox{\zzz\char'016}}	%{\pmb{$\delta$}}
\def\bepsilon{\hbox{\zzz\char'017}}	%{\pmb{$\epsilon$}}
\def\bvarepsilon{\hbox{\zzz\char'042}}	%{\pmb{$\varepsilon$}}
\def\bzeta{\hbox{\zzz\char'020}}	%{\pmb{$\zeta$}}
\def\btheta{\hbox{\zzz\char'022}}	%{\pmb{$\theta$}}
\def\bvartheta{\hbox{\zzz\char'043}}	%{\pmb{$\vartheta$}}
\def\biota{\hbox{\zzz\char'023}}	%{\pmb{$\iota$}}
\def\bkappa{\hbox{\zzz\char'024}}	%{\pmb{$\kappa$}}
\def\blambda{\hbox{\zzz\char'025}}	%{\pmb{$\lambda$}}
\def\bmu{\hbox{\zzz\char'026}}		%{\pmb{$\mu$}}
\def\bnu{\hbox{\zzz\char'027}}		%{\pmb{$\nu$}}
\def\bxi{\hbox{\zzz\char'030}}		%{\pmb{$\xi$}}
\def\bpi{\hbox{\zzz\char'031}}		%{\pmb{$\pi$}}
\def\bvarpi{\hbox{\zzz\char'044}}	%{\pmb{$\varpi$}}
\def\brho{\hbox{\zzz\char'032}}		%{\pmb{$\rho$}}
\def\bvarrho{\hbox{\zzz\char'045}}	%{\pmb{$\varrho$}}
\def\bsigma{\hbox{\zzz\char'033}}	%{\pmb{$\sigma$}}
\def\bvarsigma{\hbox{\zzz\char'046}}	%{\pmb{$\varsigma$}}
\def\btau{\hbox{\zzz\char'034}}		%{\pmb{$\tau$}}
\def\bupsilon{\hbox{\zzz\char'035}}	%{\pmb{$\upsilon$}}
\def\bphi{\hbox{\zzz\char'036}}		%{\pmb{$\phi$}}
\def\bvarphi{\hbox{\zzz\char'047}}	%{\pmb{$\varphi$}}
\def\bchi{\hbox{\zzz\char'037}}		%{\pmb{$\chi$}}
\def\bpsi{\hbox{\zzz\char'040}}		%{\pmb{$\psi$}}
\def\bomega{\hbox{\zzz\char'041}}	%{\pmb{$\omega$}}
\def\bnabla{\pmb{$\nabla$}}
\def\bpartial{\hbox{\zzz\char'100}}	%{\pmb{$\partial$}}
\def\bell{\hbox{\zzz\char'140}}
\def\binfty{\pmb{$\infty$}}
\def\bGamma{\hbox{\zzzz\char'000}}
\def\bDelta{\hbox{\zzzz\char'001}}
\def\bTheta{\hbox{\zzzz\char'002}}
\def\bLambda{\hbox{\zzzz\char'003}}
\def\bXi{\hbox{\zzzz\char'004}}
\def\bPi{\hbox{\zzzz\char'005}}
\def\bSigma{\hbox{\zzzz\char'006}}
\def\bUpsilon{\hbox{\zzzz\char'007}}
\def\bPhi{\hbox{\zzzz\char'010}}
\def\bPsi{\hbox{\zzzz\char'011}}
\def\bOmega{\hbox{\zzzz\char'012}}
\def\BGamma{\hbox{\zzz\char'000}}
\def\BDelta{\hbox{\zzz\char'001}}
\def\BTheta{\hbox{\zzz\char'002}}
\def\BLambda{\hbox{\zzz\char'003}}
\def\BXi{\hbox{\zzz\char'004}}
\def\BPi{\hbox{\zzz\char'005}}
\def\BSigma{\hbox{\zzz\char'006}}
\def\BUpsilon{\hbox{\zzz\char'007}}
\def\BPhi{\hbox{\zzz\char'010}}
\def\BPsi{\hbox{\zzz\char'011}}
\def\BOmega{\hbox{\zzz\char'012}}