first arg is missing in beta-normalization of Natural/build #1244
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I think, I found a small bug in the specification of the beta-normalization.
The beta-normalization of Natural/build should apply
g
toNatural
,succ
andzero
.The first of these arguments is currently not provided. Compare with the dhall-haskell implementation: https://github.com/dhall-lang/dhall-haskell/blob/235f38c8048c9a9fee7379d77fc55d179e0d107e/dhall/src/Dhall/Normalize.hs#L220