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diff --git a/prolog/problems/lists/del_3/sl.py b/prolog/problems/lists/del_3/sl.py
new file mode 100644
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+++ b/prolog/problems/lists/del_3/sl.py
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+# coding=utf-8
+
+name = 'del/3'
+slug = 'Zbriši element iz seznama'
+
+description = '''\
+<p><code>del(X, L1, L2)</code>: seznam <code>L2</code> dobimo iz seznama <code>L1</code> tako da zbrišemo element <code>X</code>.</p>
+<pre>
+  ?- del(1, [1,2,3], L).
+    L = [2,3].
+  ?- del(2, [1,2,3,2,5], L).
+    L = [1,3,2,5] ;
+    L = [1,2,3,5].
+  ?- del(X, [1,2,3], L).
+    X = 1, L = [2,3] ;
+    X = 2, L = [1,3] ;
+    X = 3, L = [1,2].
+</pre>'''
+
+hint = {}