lean4-htt/tests/lean/run/262.lean
Leonardo de Moura 52403fca83 feat: add support for guessing (very) simple WF relations
There are a lot of TODOs, but it is already useful for simple cases.

closes #847
2022-03-02 11:52:00 -08:00

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mutual
inductive ConE : Type where
| nilE : ConE
| extE : ConE → TyE → ConE
inductive TyE : Type where
| UE : ConE → TyE
end
def length (ΓE : ConE) : Nat :=
match ΓE with
| ConE.nilE => 0
| ConE.extE ΓE AE => (length ΓE) + 1