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JType::type-mismatch

Key: JType::type-mismatch

Category: type-mismatch · Severity: error

Source: src/diag/hints.nix:896

the type parameter of J must match the type of its two endpoints

Example

Hint::JType::type-mismatch means the JType position supplies a term whose type does not match the expected type. The example shows the failing form first, then one way to give the checker the missing structure.

# Bad: J's type argument does not match the endpoints.
J bool motive refl zero zero p

# Better: use the endpoints' shared type.
J nat motive refl zero zero p

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