2 tcfail067.hs:1: Context `{PrelBase.Ord ta17k}'
3 required by inferred type, but missing on a type signature
4 `PrelBase.Ord' `ta17k' arising from use of `SubRange' at tcfail067.hs:76
5 When checking signature(s) for: `numSubRangeBinOp'
7 tcfail067.hs:65: Context `{PrelBase.Ord ta18S}'
8 required by inferred type, but missing on a type signature
9 `PrelBase.Ord' `ta18S' arising from use of `numSubRangeNegate' at tcfail067.hs:61
10 When checking methods of an instance declaration
12 tcfail067.hs:65: No explicit method nor default method for `PrelBase.abs'
13 in an instance declaration for `PrelBase.Num'
15 tcfail067.hs:65: No explicit method nor default method for `PrelBase.signum'
16 in an instance declaration for `PrelBase.Num'
18 Compilation had errors