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diff --git a/notes/250210-records.md b/notes/250210-records.md index b93e0c3..02772f5 100644 --- a/notes/250210-records.md +++ b/notes/250210-records.md @@ -1,5 +1,7 @@ # Subtyping of record types +_2025 February_ + It's a serious limitation of SRFI 9 that it doesn't allow creating subtypes with additional fields. This is an invaluable strategy for representing a hierarchy of types, which are ubiquitious in real life |