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-rw-r--r--prolog/problems/sets/subset_2/common.py13
1 files changed, 13 insertions, 0 deletions
diff --git a/prolog/problems/sets/subset_2/common.py b/prolog/problems/sets/subset_2/common.py
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--- /dev/null
+++ b/prolog/problems/sets/subset_2/common.py
@@ -0,0 +1,13 @@
+id = 133
+group = 'sets'
+number = 40
+visible = True
+facts = None
+
+solution = '''\
+subset([], []).
+subset([H|T], [H|T1]) :-
+ subset(T, T1).
+subset([_|T], T1) :-
+ subset(T, T1).
+'''