A Formalised First-Order Confluence Proof for the lambda-Calculus Using One-Sorted Variable Names.

René Vestergaard James Brotherston A Formalised First-Order Confluence Proof for the lambda-Calculus Using One-Sorted Variable Names. 306-321 2001 conf/rta/2001 RTA http://dx.doi.org/10.1007/3-540-45127-7_23 db/conf/rta/rta2001.html#VestergaardB01