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Text File  |  1989-04-14  |  203 b   |  6 lines
  1.  
  2. /* Copyright (C) 1988, 1989 Herve' Touati, Aquarius Project, UC Berkeley */
  3.  
  4. main :- X = [a(_1,_2,_3)|_4], a(X,Y,Z), write(Y), write(Z), nl.
  5.  
  6. a([A|B],Func,Arity) :- A =.. [Func|Arg], length(Arg, Arity).