A Comparison of HOL and ALF Formalizations of a Categorical Coherence Theorem.

Sten Agerholm Ilya Beylin Peter Dybjer A Comparison of HOL and ALF Formalizations of a Categorical Coherence Theorem. 17-32 1996 conf/tphol/1996 TPHOLs db/conf/tphol/tphol96.html#AgerholmBD96 http://dx.doi.org/10.1007/BFb0105394