I can't figure out why LaTeX won't let me use the 𝔽 symbol (U+1D53D, mathematical double-stuck capital F). When I try, I get the error Package inputenc Error: Unicode char \u8:𝔽 not set up for use ...
Is there a free package to get non-upright (i.e. italic or slanted) blackboard symbols in a Type1 font? It's easy to get three of the four properties (i.e. blackboard italic font, ...
It is common (or it used to be) to use a blackboard-bold variant of \mu to denote roots of unity in some mathematical papers. However, despite searching (several times, periodically over several ...