eqlog

from The Free On-line Dictionary of Computing (8 July 2008)

EQLog

   OBJ2 plus logic programming based on Horn logic with equality.

   "EQLog: Equality, Types and Generic Modules for Logic
   Programming", J.  Goguen et al in Functional and Logic
   Programming, D. DeGroot et al eds, pp.295-363, P-H 1986.

from The Free On-line Dictionary of Computing (8 July 2008)

EQLOG

   Equality, types and generic modules for logic programming.
   A language using Horn clauses.  J.A. Goguen, J. Meseguer.