ch03ex03.pro

来自「prolog,人工智能推理程序,运行环境prolog」· PRO 代码 · 共 19 行

/*
   Turbo Prolog 2.0 Chapter 3, Example Program 3
   
   Copyright (c) 1986, 88 by Borland International, Inc
  
*/   


predicates
   likes(symbol,symbol)

clauses
   likes(ellen, reading).
   likes(john, computers).
   likes(john, badminton).
   likes(leonard, badminton). 
   likes(eric, swimming).
   likes(eric, reading).