Unverified50% confidenceFactExact time
When defining an instance for Functor, the compiler checks whether the Kind of the target type is * -> *; if a type whose Kind is * (such as Int) is passed in, the compiler reports an error.
1
Sources
50%
Confidence
Long-term
Relevance
10/17/2026
First Seen
Sources
Related Entities
Related Claims
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