Algebraic Logic Functional language

language (ALF) A language by Rudolf Opalla

[e-mail] which combines

functional programming and logic programming techniques.

ALF is based on Horn clause logic with equality which

consists of predicates and Horn clauses for logicprogramming, and functions and equations for functionalprogramming. Any functional expression can be used in a

goal literal and arbitrary predicates can occur in

conditions of equations. ALF uses narrowing and

rewriting.

ALF includes a compiler to Warren Abstract Machine code and

run-time support.

.

["The Implementation of the Functional-Logic Language ALF",

M. Hanus and A. Schwab].

(1992-10-08)