has_zero_object (view)
8 rows
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category |
---|
Ab |
FinGrp |
FinVect_k |
Grp |
Mod(Ab) |
Rng |
Set* |
Vect_k |
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CREATE VIEW "has_zero_object" AS select distinct enrichments.category from enrichments join categorical_structure using (category) where homs = 'Set*' and construction in ("initial object", "terminal object");