diff --git a/lib/Quox/Equal.idr b/lib/Quox/Equal.idr
index 4f751db..c65a1e7 100644
--- a/lib/Quox/Equal.idr
+++ b/lib/Quox/Equal.idr
@@ -3,14 +3,15 @@ module Quox.Equal
 import public Quox.Syntax
 import public Quox.Reduce
 import Control.Monad.Either
+import Generics.Derive
 
 %default total
+%language ElabReflection
 
 
 public export
 data Mode = Equal | Sub
-
-export %inline Show Mode where show Equal = "Equal"; show Sub = "Sub"
+%runElab derive "Mode" [Generic, Meta, Eq, Ord, DecEq, Show]
 
 public export
 data Error
diff --git a/lib/Quox/Name.idr b/lib/Quox/Name.idr
index c999393..a1b8c91 100644
--- a/lib/Quox/Name.idr
+++ b/lib/Quox/Name.idr
@@ -2,22 +2,18 @@ module Quox.Name
 
 import public Data.SnocList
 import Data.List
+import Generics.Derive
+
+%hide TT.Name
 
 %default total
+%language ElabReflection
 
 
 public export
-data BaseName =
-    UN String -- user-given name
-
-private BRepr : Type
-BRepr = String
-
-private %inline brepr : BaseName -> BRepr
-brepr (UN x) = x
-
-export Eq  BaseName where (==) = (==) `on` brepr
-export Ord BaseName where compare = compare `on` brepr
+data BaseName
+= UN String -- user-given name
+%runElab derive "BaseName" [Generic, Meta, Eq, Ord, DecEq]
 
 export
 Show BaseName where
@@ -38,15 +34,7 @@ record Name where
   constructor MakeName
   mods : SnocList String
   base : BaseName
-
-private Repr : Type
-Repr = (SnocList String, BRepr)
-
-private %inline repr : Name -> Repr
-repr x = (x.mods, brepr x.base)
-
-export Eq  Name where (==) = (==) `on` repr
-export Ord Name where compare = compare `on` repr
+%runElab derive "Name" [Generic, Meta, Eq, Ord]
 
 export
 Show Name where
diff --git a/lib/Quox/Pretty.idr b/lib/Quox/Pretty.idr
index 776f0da..6ed66b4 100644
--- a/lib/Quox/Pretty.idr
+++ b/lib/Quox/Pretty.idr
@@ -10,8 +10,12 @@ import Data.DPair
 
 import public Control.Monad.Identity
 import public Control.Monad.Reader
+import Generics.Derive
 
 %default total
+%language ElabReflection
+
+%hide TT.Name
 
 
 public export
@@ -26,58 +30,23 @@ defPrettyOpts = MakePrettyOpts {unicode = True, color = True}
 
 public export
 data HL
-  = Delim
-  | TVar
-  | TVarErr
-  | Dim
-  | DVar
-  | DVarErr
-  | Qty
-  | Free
-  | Syntax
-
-private HLRepr : Type
-HLRepr = Nat
-
-private %inline hlRepr : HL -> Nat
-hlRepr Delim   = 0
-hlRepr TVar    = 1
-hlRepr TVarErr = 2
-hlRepr Dim     = 3
-hlRepr DVar    = 4
-hlRepr DVarErr = 5
-hlRepr Qty     = 6
-hlRepr Free    = 7
-hlRepr Syntax  = 8
-
-export %inline Eq  HL where (==) = (==) `on` hlRepr
-export %inline Ord HL where compare = compare `on` hlRepr
-
+= Delim
+| Free | TVar | TVarErr
+| Dim  | DVar | DVarErr
+| Qty
+| Syntax
+%runElab derive "HL" [Generic, Meta, Eq, Ord, DecEq, Show]
 
 public export
 data PPrec
-  = Outer
-  | Ann  -- right of "::"
-  | AnnL -- left  of "::"
+= Outer
+| Ann  -- right of "::"
+| AnnL -- left  of "::"
   -- ...
-  | App  -- term/dimension application
-  | SApp -- substitution application
-  | Arg  -- argument to nonfix function
-
-private PrecRepr : Type
-PrecRepr = Nat
-
-private %inline precRepr : PPrec -> PrecRepr
-precRepr Outer = 0
-precRepr Ann   = 1
-precRepr AnnL  = 2
--- ...
-precRepr App   = 98
-precRepr SApp  = 99
-precRepr Arg   = 100
-
-export %inline Eq  PPrec where (==) = (==) `on` precRepr
-export %inline Ord PPrec where compare = compare `on` precRepr
+| App  -- term/dimension application
+| SApp -- substitution application
+| Arg  -- argument to nonfix function
+%runElab derive "PPrec" [Generic, Meta, Eq, Ord, DecEq, Show]
 
 
 export %inline
@@ -100,6 +69,7 @@ hlF' = map . hl'
 export %inline
 parens : Doc HL -> Doc HL
 parens doc = hl Delim "(" <+> doc <+> hl Delim ")"
+%hide Symbols.parens
 
 export %inline
 parensIf : Bool -> Doc HL -> Doc HL
@@ -138,7 +108,8 @@ record PrettyEnv where
   ||| surrounding precedence level
   prec    : PPrec
 
-public export HasEnv : (Type -> Type) -> Type
+public export
+HasEnv : (Type -> Type) -> Type
 HasEnv = MonadReader PrettyEnv
 
 export %inline
diff --git a/lib/Quox/Syntax/Dim.idr b/lib/Quox/Syntax/Dim.idr
index dffbb51..f3ae58c 100644
--- a/lib/Quox/Syntax/Dim.idr
+++ b/lib/Quox/Syntax/Dim.idr
@@ -17,9 +17,6 @@ public export
 data DimConst = Zero | One
 %name DimConst e
 
-private DCRepr : Type
-DCRepr = Nat
-
 %runElab derive "DimConst" [Generic, Meta, Eq, Ord, DecEq, Show]
 
 
diff --git a/lib/Quox/Token.idr b/lib/Quox/Token.idr
index be0bb05..432dd22 100644
--- a/lib/Quox/Token.idr
+++ b/lib/Quox/Token.idr
@@ -18,7 +18,6 @@ data Punc
 | Arrow | DblArrow
 | Times | Triangle
 | Wild
-
 %runElab derive "Punc" [Generic, Meta, Eq, Ord, DecEq, Show]
 
 
@@ -26,7 +25,6 @@ public export
 data Keyword
 = Lam | Let | In | Case | Of | Omega
 | Pi | Sigma | W
-
 %runElab derive "Keyword" [Generic, Meta, Eq, Ord, DecEq, Show]
 
 
@@ -34,7 +32,6 @@ data Keyword
 ||| quantity & dimension constants
 public export
 data Number = Zero | One | Other Nat
-
 %runElab derive "Number" [Generic, Meta, Eq, Ord, DecEq, Show]
 
 
@@ -44,7 +41,6 @@ data Token
 | K Keyword
 | Name String | Symbol String
 | N Number | TYPE Nat
-
 %runElab derive "Token" [Generic, Meta, Eq, Ord, DecEq, Show]