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Interlisp.medley/lispusers/logic/LOGIC-EXAMPLES.LGC
Larry Masinter b859649f00
moving obsolete lispusers; delete some junk files (#730)
* lispusers [HIJK]* sort out

* lispusers [LM]* sort out

* more cleanup
2022-03-07 16:19:27 -08:00

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LOGIC-EXAMPLES
3
NOTMEMBER
(SA LAMBDA (X Y)
(NOT (MEMBER X Y)))
SA-MEMBER
(SA LAMBDA (X Y)
(MEMBER X Y))
PRINT-INFO
(SA LAMBDA (FROM TO)
(PROGN (FORMAT T "Current room is ~A, enter now room ~A~%%" FROM TO)
T))
9
SEARCH
(((SEARCH ?FROM ?TO)
:-
(LOGIC-ASSERT GOAL (((GOAL ?TO)))
EXAMPLES)
(EXPLORE ?FROM ?TO (?FROM))
(GOAL ?TO)))
GOAL
(((GOAL G)))
PHONE
(((PHONE G)))
NOT
(((NOT ?X)
:-
(WFF ?X)
!
(FAIL))
((NOT ?X)))
LOGIC-MEMBER
(((LOGIC-MEMBER ?A (?A . ?B))
:- !)
((LOGIC-MEMBER ?A (?B . ?C))
:-
(LOGIC-MEMBER ?A ?C)))
DOOR
(((DOOR A B))
((DOOR A N))
((DOOR B M))
((DOOR B C))
((DOOR M I))
((DOOR C D))
((DOOR D E))
((DOOR E F))
((DOOR F H))
((DOOR H L))
((DOOR L G)))
APPEND
(((APPEND NIL ?Q ?Q))
((APPEND (?A . ?B)
?C
(?A . ?D))
:-
(APPEND ?B ?C ?D)))
IS-THERE-DOOR
(((IS-THERE-DOOR ?A ?B)
:-
(DOOR ?A ?B))
((IS-THERE-DOOR ?A ?B)
:-
(DOOR ?B ?A)))
EXPLORE
(((EXPLORE ?X ?X ?START-LIST))
((EXPLORE ?X ?Y ?START-LIST)
:-
(IS-THERE-DOOR ?X ?Z)
(NOTMEMBER ?Z ?START-LIST)
(PRINT-INFO ?X ?Z)
(EXPLORE ?Z ?Y (?Z . ?START-LIST))))