Binary package “fonts-lyx” in ubuntu bionic

TrueType versions of some TeX fonts used by LyX

 These fonts are needed for the visual math symbol display in
 LyX. They can also be used to display MathML in Gecko-based browsers
 like Firefox.
 The following fonts are included in this package:
  * cmex10 - Computer Modern math extension
  * cmmi10 - Computer Modern math italic
  * cmr10 - Computer Modern Roman
  * cmsy10 - Computer Modern math symbols
  * esint10 - Alternate integrals
  * eufm10 - Euler Fraktur (medium-weight)
  * msam10 - Extra math symbols, first series
  * msbm10 - Extra math symbols, second series, including Blackboard Bold
  * wasy10 - Waldi symbol fonts