mirror of
https://github.com/idris-lang/Idris2.git
synced 2024-12-03 00:36:37 +03:00
34 lines
775 B
Idris
34 lines
775 B
Idris
module Term
|
|
|
|
import Data.Fin
|
|
|
|
%logging 1
|
|
%logging "declare.def" 3
|
|
|
|
mutual
|
|
|
|
data Bdr : (cut : Bool) -> (vars : Nat) -> Type where
|
|
Lam : Bdr cut vars
|
|
Pi : Chk cut vars -> Bdr cut vars
|
|
|
|
-- Checkable terms (i.e. introduction forms)
|
|
data Chk : (cut : Bool) -> (vars : Nat) -> Type where
|
|
Bnd : Bdr cut vars -> Chk cut (S vars) -> Chk cut vars
|
|
Emb : Syn cut vars -> Chk cut n
|
|
|
|
|
|
-- Synthesisable terms (i.e. elimination forms)
|
|
data Syn : (cut : Bool) -> (vars : Nat) -> Type where
|
|
Var : Fin vars -> Syn cut vars
|
|
App : Syn cut vars -> Chk cut vars -> Syn cut vars
|
|
Cut : Chk True vars -> Typ True vars -> Syn True vars
|
|
|
|
Typ : (cut : Bool) -> (vars : Nat) -> Type
|
|
Typ = Chk
|
|
|
|
Term : Nat -> Type
|
|
Term = Chk True
|
|
|
|
NF : Nat -> Type
|
|
NF = Chk False
|