%% \loadbold redefinition added according to amstex.tex
%% this works only when amstex is loaded!!!
\newfam\cmmibfam
\newfam\cmbsyfam
\redefine\loadbold{%
 \font\tencmmib=qpxbmi at10\PT \font\sevencmmib=qpxbmi at7\PT
 \font\fivecmmib=qpxbmi at5\PT
 \skewchar\tencmmib'177 \skewchar\sevencmmib'177 \skewchar\fivecmmib'177
 \textfont\cmmibfam\tencmmib
 \scriptfont\cmmibfam\sevencmmib \scriptscriptfont\cmmibfam\fivecmmib
 \font\tencmbsy=pxbsy at10\PT \font\sevencmbsy=pxbsy at7\PT 
 \font\fivecmbsy=pxbsy at5\PT
 \skewchar\tencmbsy'60 \skewchar\sevencmbsy'60 \skewchar\fivecmbsy'60
 \textfont\cmbsyfam\tencmbsy
 \scriptfont\cmbsyfam\sevencmbsy \scriptscriptfont\cmbsyfam\fivecmbsy
 \let\loadbold\empty
}
