SigmaFst::inhabitation-failed
Key: SigmaFst::inhabitation-failed
Category: inhabitation · Severity: error
Source: src/diag/hints.nix:912
the first component does not inhabit the declared fst type
Example
Hint::SigmaFst::inhabitation-failed means the SigmaFst position contains a value that does not inhabit the generated type. The example shows the failing form first, then one way to give the checker the missing structure.
# Bad: the first component does not inhabit fst's type.
pair "not-a-nat" proof
# Better: fst inhabits its declared type.
pair (natLit 3) proof