fonts-lyx 2.2.4-0ubuntu0.18.04.1 (amd64 binary) in ubuntu bionic

 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