diff options
Diffstat (limited to 'prolog/problems/family_relations/aunt_2')
-rw-r--r-- | prolog/problems/family_relations/aunt_2/common.py | 17 | ||||
-rw-r--r-- | prolog/problems/family_relations/aunt_2/en.py | 13 |
2 files changed, 30 insertions, 0 deletions
diff --git a/prolog/problems/family_relations/aunt_2/common.py b/prolog/problems/family_relations/aunt_2/common.py new file mode 100644 index 0000000..78e98c5 --- /dev/null +++ b/prolog/problems/family_relations/aunt_2/common.py @@ -0,0 +1,17 @@ +id = 98 +group = 'family_relations' +number = 5 +visible = True +facts = 'family_relations' + +solution = '''\ +sister98(X, Y) :- + parent(P, X), + parent(P, Y), + female(X), + X \== Y. + +aunt(X, Y) :- + sister98(X, Z), + parent(Z, Y). +''' diff --git a/prolog/problems/family_relations/aunt_2/en.py b/prolog/problems/family_relations/aunt_2/en.py new file mode 100644 index 0000000..95780a1 --- /dev/null +++ b/prolog/problems/family_relations/aunt_2/en.py @@ -0,0 +1,13 @@ +id = 98 +name = 'aunt/2' +slug = 'the aunt relation' + +description = '''\ +<p><code>aunt(X, Y)</code>: <code>X</code> is an aunt of <code>Y</code>.</p> +<pre> + ?- aunt(sally, X). + X = vanessa ; + X = patricia. +</pre>''' + +hint = {} |