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10: .

domains

list=integer*

predicates

insert_sort (list, list)

insert (integer, list, list)

asc_order (integer, integer)

clauses

insert_sort ([], []).

insert_sort ([H1|T1], L2):- insert_sort (T1, T2),

insert(H1, T2, L2).

insert (X, [H1| T1], [H1| T2]):- asc_order (X, H1),!,

insert (X, T1, T2).

insert (X, L1, [X| L1]).

asc_order (X, Y):- X>Y.

goal

insert_sort ([4, 7, 3, 9], L).

. , , insert_sort, H1 , . .

, , insert, . H1 9, insert (9, [], [9]).

, insert_sort. 3 asc_order, asc_order (3, 9):- 3>9. , , , 3 9: insert (3, [9], [3, 9]).

insert_sort, : insert_sort ([3, 9], [3, 9]).

7 asc_order asc_order (7, 3):- 7>3. , 3 insert , [9]: insert (7, [9], _). asc_order (7, 9):- 7>9 , , insert, insert_sort.

7 3 9: insert (7, [3, 9], [3, 7, 9]).

4 asc_order asc_order (4, 3):- 4>3. , 3 insert , [7, 9]: insert (4, [7, 9], _). asc_order (4, 7):- 4>7 , , insert, insert_sort.

4 3 7:

insert (4, [3, 7, 9], [3, 4, 7, 9]).

insert_sort [4, 7, 3, 9], [3, 4, 7, 9]).





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