Verified quadratic virtual substitution for real arithmetic

@INPROCEEDINGS{DBLP:conf/fm/ScharagerCMP21,
	pdf = {pub/QE-VSubst.pdf},
	slides = {pub/QE-VSubst-slides.pdf},
	study = {http://isa-afp.org/entries/Virtual_Substitution.html},

  author    = {Matias Scharager and
               Katherine Cordwell and
               Stefan Mitsch and
               Andr\'{e} Platzer},
  title     = {Verified Quadratic Virtual Substitution for Real Arithmetic},
  booktitle = {FM},
  year      = {2021},
  pages     = {200-217},
  doi       = {10.1007/978-3-030-90870-6_11},
  editor    = {Huisman, Marieke and
               Pasareanu, Corina S. and
               Zhan, Naijun},
  longbooktitle = {FM 2021: Formal Methods},
  longlongbooktitle = {Formal Methods - 24th International Symposium, {FM} 2021,
                 November 20-26, 2021, Proceedings},
  publisher = {Springer},
  series    = {LNCS},
  volume    = {13047},
}```