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gf-core/grammars/ljung/thesis/CopyMorphismAbs.gf
2005-08-08 08:01:10 +00:00

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-- the example 4.1 from Ljunglöf (2004, page 82)
abstract CopyMorphismAbs = {
cat S; A;
fun
f : A -> S;
g : A -> A -> A;
ac : A;
bd : A;
}