T1899.hs:14:36: error:
• Couldn't match type ‘a’ with ‘Proposition a0’
‘a’ is a rigid type variable bound by
the type signature for:
transRHS :: forall a. [a] -> Int -> Constraint a
at T1899.hs:9:2-39
Expected type: [Proposition a0]
Actual type: [a]
• In the first argument of ‘Auxiliary’, namely ‘varSet’
In the first argument of ‘Prop’, namely ‘(Auxiliary varSet)’
In the expression: Prop (Auxiliary varSet)
• Relevant bindings include
varSet :: [a] (bound at T1899.hs:10:11)
transRHS :: [a] -> Int -> Constraint a (bound at T1899.hs:10:2)