My toy language's evaluator won't type check...

How can I correctly evaluate this value in my toy language...

GADTs for multiple generics transformations in Rust...

How can I use a Constraint Family that's in scope to prove instances within the body of an expre...

How can I derive typeclass instances from constraint families that are in scope?...

Not in scope: type constructor or class ‘∼’...

Using GADTs with DataKinds for type level data constructor constraints in functions...

Enforce a typeclass constraint on an existing datatype...

How can I polymorphically interpret an Arrow-like GADT DSL?...

Coyoneda hasn't a higher-rank type but what type has it actually?...

How to construct values from multiple GADTs while parsing json?...

Haskell type inference with GADTs and typeclass constraints on type variables...

Equality for GADTs which erase type parameter...

How to 'show' unshowable types?...

Is GADT extension destroying polymorphism?...

Why does eqT returning Maybe (a :~: b) work better than it returning Bool?...

Weaken GADTs type constraints to deal with unpredictable data...

Interaction between GADTs and ScopedTypeVariables/PatternSignatures...

When are refutation cases necessary in OCaml?...

How to differentiate GADT constructors with different phantom types?...

Why doesn't makeLenses derive a lens for some quantified constructors?...

Invariant default type for enums in Scala 3...

Polymorphic variant --> GADT?...

Construct GADT while parsing json...

Must I cast Nat-kinds every time?...

Unwrapping an existentially quantified GADT...

Why can't ghc match these types on this Category product?...

What does this type error on heterogeneous lists means?...

GADTs but not existential quantification...

Type inference with GADTs - a0 is untouchable...