by Dirk Pattinson and Lutz Schröder
Reference:
Dirk Pattinson and Lutz Schröder: Program equivalence is coinductive, In Martin Grohe, Eric Koskinen, Natarajan Shankar, eds.: Logic in Computer Science, LICS 2016, pp. 337–346, ACM, 2016.
Bibtex Entry:
@InProceedings{PattinsonSchroder16,
author = {Dirk Pattinson and Lutz Schr\"oder},
title = {Program equivalence is coinductive},
booktitle = {Logic in Computer Science, LICS 2016},
year = {2016},
publisher = {ACM},
url = {http://www8.cs.fau.de/ext/papers/prog-coinduct.pdf},
pages = {337-346},
editor = {Martin Grohe and Eric Koskinen and Natarajan Shankar}
}