1/1: Building Issue110 (Issue110.idr)
Error: Declaration name (f) shadowed by a pattern variable.

Issue110:8:1--8:14
 4 | data Tup : (a,b : Type) -> Type where
 5 |   MkTup : (1 f : a) -> (1 s : b) -> Tup a b
 6 | 
 7 | f : Tup a b -> a
 8 | f (MkTup f s) = f
     ^^^^^^^^^^^^^