Between the two packages
kpfonts, whichever is loaded last determines the look of
\varkappa. With the usual tricks using
\LetLtxMacro, I have not found a way to simultaneously have both
How can I have both versions of
\varkappaavailable within a given document?
So far, I've been able to ascertain that the second package (whichever one that might be at the given compile time) redefines what AMSb is/does, but how to use that information is presently beyond my capacity.