#
existential-types
Existential types and sigma types in dependently typed languages
ProgrammingIdris Pattern Matching with Existential Types Explained
Understand how Idris' type checker handles pattern matching on existential types like EqNat. Learn why replacing Just (Same _) with Just _ causes type mismatch errors, even with single constructors, and how to refine dependent goals properly.
1 answer• 1 view