pass a TyContext into equal etc, rather than its components

This commit is contained in:
rhiannon morris 2023-02-14 22:28:10 +01:00
parent 065ebedf2d
commit bee6eeacdf
5 changed files with 119 additions and 110 deletions

View file

@ -285,8 +285,7 @@ parameters (defs : Definitions' q _) {auto _ : (CanEqual q m, Eq q)}
compare0' _ e@(_ :# _) f _ _ = clashE e f
parameters {auto _ : (HasDefs' q _ m, HasErr q m, Eq q)}
(eq : DimEq d) (ctx : TContext q d n)
parameters {auto _ : (HasDefs' q _ m, HasErr q m, Eq q)} (ctx : TyContext q d n)
parameters (mode : EqMode)
namespace Term
export covering
@ -294,16 +293,17 @@ parameters {auto _ : (HasDefs' q _ m, HasErr q m, Eq q)}
compare ty s t = do
defs <- ask
runReaderT {m} (MakeEnv {mode}) $
for_ (splits eq) $ \th =>
compare0 defs (map (/// th) ctx) (ty /// th) (s /// th) (t /// th)
for_ (splits ctx.dctx) $ \th =>
compare0 defs (map (/// th) ctx.tctx)
(ty /// th) (s /// th) (t /// th)
export covering
compareType : (s, t : Term q d n) -> m ()
compareType s t = do
defs <- ask
runReaderT {m} (MakeEnv {mode}) $
for_ (splits eq) $ \th =>
compareType defs (map (/// th) ctx) (s /// th) (t /// th)
for_ (splits ctx.dctx) $ \th =>
compareType defs (map (/// th) ctx.tctx) (s /// th) (t /// th)
namespace Elim
||| you don't have to pass the type in but the arguments must still be
@ -313,8 +313,8 @@ parameters {auto _ : (HasDefs' q _ m, HasErr q m, Eq q)}
compare e f = do
defs <- ask
runReaderT {m} (MakeEnv {mode}) $
for_ (splits eq) $ \th =>
compare0 defs (map (/// th) ctx) (e /// th) (f /// th)
for_ (splits ctx.dctx) $ \th =>
compare0 defs (map (/// th) ctx.tctx) (e /// th) (f /// th)
namespace Term
export covering %inline

View file

@ -168,9 +168,9 @@ parameters {auto _ : IsQty q} {auto _ : CanTC q m}
-- if Ψ, i | Γ ⊢ σ · t ⇐ A ⊳ Σ
qout <- check (extendDim ctx) sg body.term ty.term
-- if Ψ | Γ ⊢ t0 = l : A0
equal ctx.dctx ctx.tctx ty.zero body.zero l
equal ctx ty.zero body.zero l
-- if Ψ | Γ ⊢ t1 = r : A1
equal ctx.dctx ctx.tctx ty.one body.one r
equal ctx ty.one body.one r
-- then Ψ | Γ ⊢ σ · (λᴰi ⇒ t) ⇐ Eq [i ⇒ A] l r ⊳ Σ
pure qout
@ -178,7 +178,7 @@ parameters {auto _ : IsQty q} {auto _ : CanTC q m}
-- if Ψ | Γ ⊢ σ · e ⇒ A' ⊳ Σ
infres <- infer ctx sg e
-- if Ψ | Γ ⊢ A' <: A
subtype ctx.dctx ctx.tctx infres.type ty
subtype ctx infres.type ty
-- then Ψ | Γ ⊢ σ · e ⇐ A ⊳ Σ
pure infres.qout

View file

@ -44,6 +44,10 @@ namespace TContext
pushD tel = map (/// shift 1) tel
namespace TyContext
public export %inline
empty : {d : Nat} -> TyContext q d 0
empty = MkTyContext {dctx = new, tctx = [<]}
export %inline
extendTyN : Telescope (Term q d) from to ->
TyContext q d from -> TyContext q d to

View file

@ -28,20 +28,24 @@ parameters (label : String) (act : Lazy (M ()))
testNeq = testThrows label (const True) $ runReaderT globals act
parameters {default 0 d, n : Nat}
{default new eqs : DimEq d}
(ctx : TContext Three d n)
subT : Term Three d n -> Term Three d n -> Term Three d n -> M ()
subT ty s t = Term.sub eqs ctx ty s t
parameters (0 d : Nat) (ctx : TyContext Three d n)
subTD, equalTD : Term Three d n -> Term Three d n -> Term Three d n -> M ()
subTD ty s t = Term.sub ctx ty s t
equalTD ty s t = Term.equal ctx ty s t
equalT : Term Three d n -> Term Three d n -> Term Three d n -> M ()
equalT ty s t = Term.equal eqs ctx ty s t
subED, equalED : Elim Three d n -> Elim Three d n -> M ()
subED e f = Elim.sub ctx e f
equalED e f = Elim.equal ctx e f
subE : Elim Three d n -> Elim Three d n -> M ()
subE e f = Elim.sub eqs ctx e f
parameters (ctx : TyContext Three 0 n)
subT, equalT : Term Three 0 n -> Term Three 0 n -> Term Three 0 n -> M ()
subT = subTD 0 ctx
equalT = equalTD 0 ctx
subE, equalE : Elim Three 0 n -> Elim Three 0 n -> M ()
subE = subED 0 ctx
equalE = equalED 0 ctx
equalE : Elim Three d n -> Elim Three d n -> M ()
equalE e f = Elim.equal eqs ctx e f
export
@ -52,17 +56,17 @@ tests = "equality & subtyping" :- [
"universes" :- [
testEq "★₀ = ★₀" $
equalT [<] (TYPE 1) (TYPE 0) (TYPE 0),
equalT empty (TYPE 1) (TYPE 0) (TYPE 0),
testNeq "★₀ ≠ ★₁" $
equalT [<] (TYPE 2) (TYPE 0) (TYPE 1),
equalT empty (TYPE 2) (TYPE 0) (TYPE 1),
testNeq "★₁ ≠ ★₀" $
equalT [<] (TYPE 2) (TYPE 1) (TYPE 0),
equalT empty (TYPE 2) (TYPE 1) (TYPE 0),
testEq "★₀ <: ★₀" $
subT [<] (TYPE 1) (TYPE 0) (TYPE 0),
subT empty (TYPE 1) (TYPE 0) (TYPE 0),
testEq "★₀ <: ★₁" $
subT [<] (TYPE 2) (TYPE 0) (TYPE 1),
subT empty (TYPE 2) (TYPE 0) (TYPE 1),
testNeq "★₁ ≮: ★₀" $
subT [<] (TYPE 2) (TYPE 1) (TYPE 0)
subT empty (TYPE 2) (TYPE 1) (TYPE 0)
],
"pi" :- [
@ -70,79 +74,79 @@ tests = "equality & subtyping" :- [
note #""𝐴𝐵" for (0·𝐴)𝐵"#,
testEq "★₀ ⇾ ★₀ = ★₀ ⇾ ★₀" $
let tm = Arr Zero (TYPE 0) (TYPE 0) in
equalT [<] (TYPE 1) tm tm,
equalT empty (TYPE 1) tm tm,
testEq "★₀ ⇾ ★₀ <: ★₀ ⇾ ★₀" $
let tm = Arr Zero (TYPE 0) (TYPE 0) in
subT [<] (TYPE 1) tm tm,
subT empty (TYPE 1) tm tm,
testNeq "★₁ ⊸ ★₀ ≠ ★₀ ⇾ ★₀" $
let tm1 = Arr Zero (TYPE 1) (TYPE 0)
tm2 = Arr Zero (TYPE 0) (TYPE 0) in
equalT [<] (TYPE 2) tm1 tm2,
equalT empty (TYPE 2) tm1 tm2,
testEq "★₁ ⊸ ★₀ <: ★₀ ⊸ ★₀" $
let tm1 = Arr One (TYPE 1) (TYPE 0)
tm2 = Arr One (TYPE 0) (TYPE 0) in
subT [<] (TYPE 2) tm1 tm2,
subT empty (TYPE 2) tm1 tm2,
testEq "★₀ ⊸ ★₀ <: ★₀ ⊸ ★₁" $
let tm1 = Arr One (TYPE 0) (TYPE 0)
tm2 = Arr One (TYPE 0) (TYPE 1) in
subT [<] (TYPE 2) tm1 tm2,
subT empty (TYPE 2) tm1 tm2,
testEq "★₀ ⊸ ★₀ <: ★₀ ⊸ ★₁" $
let tm1 = Arr One (TYPE 0) (TYPE 0)
tm2 = Arr One (TYPE 0) (TYPE 1) in
subT [<] (TYPE 2) tm1 tm2,
subT empty (TYPE 2) tm1 tm2,
testEq "A ⊸ B = A ⊸ B" $
let tm = Arr One (FT "A") (FT "B") in
equalT [<] (TYPE 0) tm tm,
equalT empty (TYPE 0) tm tm,
testEq "A ⊸ B <: A ⊸ B" $
let tm = Arr One (FT "A") (FT "B") in
subT [<] (TYPE 0) tm tm,
subT empty (TYPE 0) tm tm,
note "incompatible quantities",
testNeq "★₀ ⊸ ★₀ ≠ ★₀ ⇾ ★₁" $
let tm1 = Arr Zero (TYPE 0) (TYPE 0)
tm2 = Arr Zero (TYPE 0) (TYPE 1) in
equalT [<] (TYPE 2) tm1 tm2,
equalT empty (TYPE 2) tm1 tm2,
testNeq "A ⇾ B ≠ A ⊸ B" $
let tm1 = Arr Zero (FT "A") (FT "B")
tm2 = Arr One (FT "A") (FT "B") in
equalT [<] (TYPE 0) tm1 tm2,
equalT empty (TYPE 0) tm1 tm2,
testNeq "A ⇾ B ≮: A ⊸ B" $
let tm1 = Arr Zero (FT "A") (FT "B")
tm2 = Arr One (FT "A") (FT "B") in
subT [<] (TYPE 0) tm1 tm2,
subT empty (TYPE 0) tm1 tm2,
testEq "0=1 ⊢ A ⇾ B = A ⊸ B" $
let tm1 = Arr Zero (FT "A") (FT "B")
tm2 = Arr One (FT "A") (FT "B") in
equalT [<] (TYPE 0) tm1 tm2 {eqs = ZeroIsOne},
equalT (MkTyContext ZeroIsOne [<]) (TYPE 0) tm1 tm2,
note "[todo] should π ≤ ρ ⊢ (ρ·A) → B <: (π·A) → B?"
],
"lambda" :- [
testEq "λ x ⇒ [x] = λ x ⇒ [x]" $
equalT [<] (Arr One (FT "A") (FT "A"))
equalT empty (Arr One (FT "A") (FT "A"))
(["x"] :\\ BVT 0)
(["x"] :\\ BVT 0),
testEq "λ x ⇒ [x] <: λ x ⇒ [x]" $
subT [<] (Arr One (FT "A") (FT "A"))
subT empty (Arr One (FT "A") (FT "A"))
(["x"] :\\ BVT 0)
(["x"] :\\ BVT 0),
testEq "λ x ⇒ [x] = λ y ⇒ [y]" $
equalT [<] (Arr One (FT "A") (FT "A"))
equalT empty (Arr One (FT "A") (FT "A"))
(["x"] :\\ BVT 0)
(["y"] :\\ BVT 0),
testEq "λ x ⇒ [x] <: λ y ⇒ [y]" $
equalT [<] (Arr One (FT "A") (FT "A"))
equalT empty (Arr One (FT "A") (FT "A"))
(["x"] :\\ BVT 0)
(["y"] :\\ BVT 0),
testNeq "λ x y ⇒ [x] ≠ λ x y ⇒ [y]" $
equalT [<] (Arr One (FT "A") $ Arr One (FT "A") (FT "A"))
equalT empty (Arr One (FT "A") $ Arr One (FT "A") (FT "A"))
(["x", "y"] :\\ BVT 1)
(["x", "y"] :\\ BVT 0),
testEq "λ x ⇒ [a] = λ x ⇒ [a] (TUsed vs TUnused)" $
equalT [<] (Arr Zero (FT "B") (FT "A"))
equalT empty (Arr Zero (FT "B") (FT "A"))
(Lam "x" $ TUsed $ FT "a")
(Lam "x" $ TUnused $ FT "a"),
testEq "λ x ⇒ [f [x]] = [f] (η)" $
equalT [<] (Arr One (FT "A") (FT "A"))
equalT empty (Arr One (FT "A") (FT "A"))
(["x"] :\\ E (F "f" :@ BVT 0))
(FT "f")
],
@ -150,10 +154,10 @@ tests = "equality & subtyping" :- [
"eq type" :- [
testEq "(★₀ ≡ ★₀ : ★₁) = (★₀ ≡ ★₀ : ★₁)" $
let tm = Eq0 (TYPE 1) (TYPE 0) (TYPE 0) in
equalT [<] (TYPE 2) tm tm,
equalT empty (TYPE 2) tm tm,
testEq "A ≔ ★₁ ⊢ (★₀ ≡ ★₀ : ★₁) = (★₀ ≡ ★₀ : A)"
{globals = fromList [("A", mkDef zero (TYPE 2) (TYPE 1))]} $
equalT [<] (TYPE 2)
equalT empty (TYPE 2)
(Eq0 (TYPE 1) (TYPE 0) (TYPE 0))
(Eq0 (FT "A") (TYPE 0) (TYPE 0))
],
@ -166,86 +170,86 @@ tests = "equality & subtyping" :- [
note #""refl [A] x" is an abbreviation for "(λᴰi ⇒ x)(x ≡ x : A)""#,
note "binds before ∥ are globals, after it are BVs",
testEq "refl [A] a = refl [A] a" $
equalE [<] (refl (FT "A") (FT "a")) (refl (FT "A") (FT "a")),
equalE empty (refl (FT "A") (FT "a")) (refl (FT "A") (FT "a")),
testEq "p : (a ≡ a' : A), q : (a ≡ a' : A) ∥ ⊢ p = q (free)"
{globals =
let def = mkAbstract Zero $ Eq0 (FT "A") (FT "a") (FT "a'") in
defGlobals `mergeLeft` fromList [("p", def), ("q", def)]} $
equalE [<] (F "p") (F "q"),
equalE empty (F "p") (F "q"),
testEq "∥ x : (a ≡ a' : A), y : (a ≡ a' : A) ⊢ x = y (bound)" $
let ty : forall n. Term Three 0 n := Eq0 (FT "A") (FT "a") (FT "a'") in
equalE [< ty, ty] (BV 0) (BV 1) {n = 2},
equalE (MkTyContext new [< ty, ty]) (BV 0) (BV 1),
testEq "∥ x : [(a ≡ a' : A) ∷ Type 0], y : [ditto] ⊢ x = y" $
let ty : forall n. Term Three 0 n
:= E (Eq0 (FT "A") (FT "a") (FT "a'") :# TYPE 0) in
equalE [< ty, ty] (BV 0) (BV 1) {n = 2},
equalE (MkTyContext new [< ty, ty]) (BV 0) (BV 1),
testEq "E ≔ a ≡ a' : A, EE ≔ E ∥ x : EE, y : EE ⊢ x = y"
{globals = defGlobals `mergeLeft` fromList
[("E", mkDef zero (TYPE 0) (Eq0 (FT "A") (FT "a") (FT "a'"))),
("EE", mkDef zero (TYPE 0) (FT "E"))]} $
equalE [< FT "EE", FT "EE"] (BV 0) (BV 1) {n = 2},
equalE (MkTyContext new [< FT "EE", FT "EE"]) (BV 0) (BV 1),
testEq "E ≔ a ≡ a' : A, EE ≔ E ∥ x : EE, y : E ⊢ x = y"
{globals = defGlobals `mergeLeft` fromList
[("E", mkDef zero (TYPE 0) (Eq0 (FT "A") (FT "a") (FT "a'"))),
("EE", mkDef zero (TYPE 0) (FT "E"))]} $
equalE [< FT "EE", FT "E"] (BV 0) (BV 1) {n = 2},
equalE (MkTyContext new [< FT "EE", FT "E"]) (BV 0) (BV 1),
testEq "E ≔ a ≡ a' : A ∥ x : E, y : E ⊢ x = y"
{globals = defGlobals `mergeLeft` fromList
[("E", mkDef zero (TYPE 0) (Eq0 (FT "A") (FT "a") (FT "a'")))]} $
equalE [< FT "E", FT "E"] (BV 0) (BV 1) {n = 2},
equalE (MkTyContext new [< FT "E", FT "E"]) (BV 0) (BV 1),
testEq "E ≔ a ≡ a' : A ∥ x : (E×E), y : (E×E) ⊢ x = y"
{globals = defGlobals `mergeLeft` fromList
[("E", mkDef zero (TYPE 0) (Eq0 (FT "A") (FT "a") (FT "a'")))]} $
let ty : forall n. Term Three 0 n
:= Sig "_" (FT "E") $ TUnused $ FT "E" in
equalE [< ty, ty] (BV 0) (BV 1) {n = 2},
equalE (MkTyContext new [< ty, ty]) (BV 0) (BV 1),
testEq "E ≔ a ≡ a' : A, F ≔ E × E ∥ x : F, y : F ⊢ x = y"
{globals = defGlobals `mergeLeft` fromList
[("E", mkDef zero (TYPE 0) (Eq0 (FT "A") (FT "a") (FT "a'"))),
("W", mkDef zero (TYPE 0) (FT "E" `And` FT "E"))]} $
equalE [< FT "W", FT "W"] (BV 0) (BV 1) {n = 2}
equalE (MkTyContext new [< FT "W", FT "W"]) (BV 0) (BV 1)
],
"term closure" :- [
testEq "[#0]{} = [#0] : A" $
equalT [< FT "A"] (FT "A") {n = 1}
equalT (MkTyContext new [< FT "A"]) (FT "A")
(CloT (BVT 0) id)
(BVT 0),
testEq "[#0]{a} = [a] : A" $
equalT [<] (FT "A")
equalT empty (FT "A")
(CloT (BVT 0) (F "a" ::: id))
(FT "a"),
testEq "[#0]{a,b} = [a] : A" $
equalT [<] (FT "A")
equalT empty (FT "A")
(CloT (BVT 0) (F "a" ::: F "b" ::: id))
(FT "a"),
testEq "[#1]{a,b} = [b] : A" $
equalT [<] (FT "A")
equalT empty (FT "A")
(CloT (BVT 1) (F "a" ::: F "b" ::: id))
(FT "b"),
testEq "(λy. [#1]){a} = λy. [a] : B ⇾ A (TUnused)" $
equalT [<] (Arr Zero (FT "B") (FT "A"))
equalT empty (Arr Zero (FT "B") (FT "A"))
(CloT (Lam "y" $ TUnused $ BVT 0) (F "a" ::: id))
(Lam "y" $ TUnused $ FT "a"),
testEq "(λy. [#1]){a} = λy. [a] : B ⇾ A (TUsed)" $
equalT [<] (Arr Zero (FT "B") (FT "A"))
equalT empty (Arr Zero (FT "B") (FT "A"))
(CloT (["y"] :\\ BVT 1) (F "a" ::: id))
(["y"] :\\ FT "a")
],
"term d-closure" :- [
testEq "★₀‹𝟎› = ★₀ : ★₁" $
equalT {d = 1} [<] (TYPE 1) (DCloT (TYPE 0) (K Zero ::: id)) (TYPE 0),
equalTD 1 empty (TYPE 1) (DCloT (TYPE 0) (K Zero ::: id)) (TYPE 0),
testEq "(λᴰ i ⇒ a)𝟎 = (λᴰ i ⇒ a) : (a ≡ a : A)" $
equalT {d = 1} [<]
equalTD 1 empty
(Eq0 (FT "A") (FT "a") (FT "a"))
(DCloT (["i"] :\\% FT "a") (K Zero ::: id))
(["i"] :\\% FT "a"),
@ -261,136 +265,137 @@ tests = "equality & subtyping" :- [
("B", mkDef Any (TYPE (U 1)) (FT "A"))]
in [
testEq "A = A" $
equalE [<] (F "A") (F "A"),
equalE empty (F "A") (F "A"),
testNeq "A ≠ B" $
equalE [<] (F "A") (F "B"),
equalE empty (F "A") (F "B"),
testEq "0=1 ⊢ A = B" $
equalE {eqs = ZeroIsOne} [<] (F "A") (F "B"),
equalE (MkTyContext ZeroIsOne [<]) (F "A") (F "B"),
testEq "A : ★₁ ≔ ★₀ ⊢ A = (★₀ ∷ ★₁)" {globals = au_bu} $
equalE [<] (F "A") (TYPE 0 :# TYPE 1),
equalE empty (F "A") (TYPE 0 :# TYPE 1),
testEq "A : ★₁ ≔ ★₀ ⊢ [A] = ★₀" {globals = au_bu} $
equalT [<] (TYPE 1) (FT "A") (TYPE 0),
equalT empty (TYPE 1) (FT "A") (TYPE 0),
testEq "A ≔ ★₀, B ≔ ★₀ ⊢ A = B" {globals = au_bu} $
equalE [<] (F "A") (F "B"),
equalE empty (F "A") (F "B"),
testEq "A ≔ ★₀, B ≔ A ⊢ A = B" {globals = au_ba} $
equalE [<] (F "A") (F "B"),
equalE empty (F "A") (F "B"),
testEq "A <: A" $
subE [<] (F "A") (F "A"),
subE empty (F "A") (F "A"),
testNeq "A ≮: B" $
subE [<] (F "A") (F "B"),
subE empty (F "A") (F "B"),
testEq "A : ★₃ ≔ ★₀, B : ★₃ ≔ ★₂ ⊢ A <: B"
{globals = fromList [("A", mkDef Any (TYPE 3) (TYPE 0)),
("B", mkDef Any (TYPE 3) (TYPE 2))]} $
subE [<] (F "A") (F "B"),
subE empty (F "A") (F "B"),
note "(A and B in different universes)",
testEq "A : ★₁ ≔ ★₀, B : ★₃ ≔ ★₂ ⊢ A <: B"
{globals = fromList [("A", mkDef Any (TYPE 1) (TYPE 0)),
("B", mkDef Any (TYPE 3) (TYPE 2))]} $
subE [<] (F "A") (F "B"),
subE empty (F "A") (F "B"),
testEq "0=1 ⊢ A <: B" $
subE [<] (F "A") (F "B") {eqs = ZeroIsOne}
subE (MkTyContext ZeroIsOne [<]) (F "A") (F "B")
],
"bound var" :- [
testEq "#0 = #0" $
equalE [< TYPE 0] (BV 0) (BV 0) {n = 1},
equalE (MkTyContext new [< TYPE 0]) (BV 0) (BV 0),
testEq "#0 <: #0" $
subE [< TYPE 0] (BV 0) (BV 0) {n = 1},
subE (MkTyContext new [< TYPE 0]) (BV 0) (BV 0),
testNeq "#0 ≠ #1" $
equalE [< TYPE 0, TYPE 0] (BV 0) (BV 1) {n = 2},
equalE (MkTyContext new [< TYPE 0, TYPE 0]) (BV 0) (BV 1),
testNeq "#0 ≮: #1" $
subE [< TYPE 0, TYPE 0] (BV 0) (BV 1) {n = 2},
subE (MkTyContext new [< TYPE 0, TYPE 0]) (BV 0) (BV 1),
testEq "0=1 ⊢ #0 = #1" $
equalE [< TYPE 0, TYPE 0] (BV 0) (BV 1)
{n = 2, eqs = ZeroIsOne}
equalE (MkTyContext ZeroIsOne [< TYPE 0, TYPE 0]) (BV 0) (BV 1)
],
"application" :- [
testEq "f [a] = f [a]" $
equalE [<] (F "f" :@ FT "a") (F "f" :@ FT "a"),
equalE empty (F "f" :@ FT "a") (F "f" :@ FT "a"),
testEq "f [a] <: f [a]" $
subE [<] (F "f" :@ FT "a") (F "f" :@ FT "a"),
subE empty (F "f" :@ FT "a") (F "f" :@ FT "a"),
testEq "(λ x ⇒ [x] ∷ A ⊸ A) a = ([a ∷ A] ∷ A) (β)" $
equalE [<]
equalE empty
(((["x"] :\\ BVT 0) :# Arr One (FT "A") (FT "A")) :@ FT "a")
(E (FT "a" :# FT "A") :# FT "A"),
testEq "(λ x ⇒ [x] ∷ A ⊸ A) a = a (βυ)" $
equalE [<]
equalE empty
(((["x"] :\\ BVT 0) :# Arr One (FT "A") (FT "A")) :@ FT "a")
(F "a"),
testEq "(λ g ⇒ [g [a]] ∷ ⋯)) [f] = (λ y ⇒ [f [y]] ∷ ⋯) [a] (β↘↙)" $
let a = FT "A"; a2a = (Arr One a a) in
equalE [<]
equalE empty
(((["g"] :\\ E (BV 0 :@ FT "a")) :# Arr One a2a a) :@ FT "f")
(((["y"] :\\ E (F "f" :@ BVT 0)) :# a2a) :@ FT "a"),
testEq "(λ x ⇒ [x] ∷ A ⊸ A) a <: a" $
subE [<]
subE empty
(((["x"] :\\ BVT 0) :# (Arr One (FT "A") (FT "A"))) :@ FT "a")
(F "a"),
note "id : A ⊸ A ≔ λ x ⇒ [x]",
testEq "id [a] = a" $ equalE [<] (F "id" :@ FT "a") (F "a"),
testEq "id [a] <: a" $ subE [<] (F "id" :@ FT "a") (F "a")
testEq "id [a] = a" $ equalE empty (F "id" :@ FT "a") (F "a"),
testEq "id [a] <: a" $ subE empty (F "id" :@ FT "a") (F "a")
],
todo "dim application",
"annotation" :- [
testEq "(λ x ⇒ f [x]) ∷ A ⊸ A = [f] ∷ A ⊸ A" $
equalE [<]
equalE empty
((["x"] :\\ E (F "f" :@ BVT 0)) :# Arr One (FT "A") (FT "A"))
(FT "f" :# Arr One (FT "A") (FT "A")),
testEq "[f] ∷ A ⊸ A = f" $
equalE [<] (FT "f" :# Arr One (FT "A") (FT "A")) (F "f"),
equalE empty (FT "f" :# Arr One (FT "A") (FT "A")) (F "f"),
testEq "(λ x ⇒ f [x]) ∷ A ⊸ A = f" $
equalE [<]
equalE empty
((["x"] :\\ E (F "f" :@ BVT 0)) :# Arr One (FT "A") (FT "A"))
(F "f")
],
"elim closure" :- [
testEq "#0{a} = a" $
equalE [<] (CloE (BV 0) (F "a" ::: id)) (F "a"),
equalE empty (CloE (BV 0) (F "a" ::: id)) (F "a"),
testEq "#1{a} = #0" $
equalE [< FT "A"] (CloE (BV 1) (F "a" ::: id)) (BV 0) {n = 1}
equalE (MkTyContext new [< FT "A"])
(CloE (BV 1) (F "a" ::: id)) (BV 0)
],
"elim d-closure" :- [
note "0·eq-ab : (A ≡ B : ★₀)",
testEq "(eq-ab #0)𝟎 = eq-ab 𝟎" $
equalE {d = 1} [<]
equalED 1 empty
(DCloE (F "eq-ab" :% BV 0) (K Zero ::: id))
(F "eq-ab" :% K Zero),
testEq "(eq-ab #0)𝟎 = A" $
equalE {d = 1} [<] (DCloE (F "eq-ab" :% BV 0) (K Zero ::: id)) (F "A"),
equalED 1 empty (DCloE (F "eq-ab" :% BV 0) (K Zero ::: id)) (F "A"),
testEq "(eq-ab #0)𝟏 = B" $
equalE {d = 1} [<] (DCloE (F "eq-ab" :% BV 0) (K One ::: id)) (F "B"),
equalED 1 empty (DCloE (F "eq-ab" :% BV 0) (K One ::: id)) (F "B"),
testNeq "(eq-ab #0)𝟏 ≠ A" $
equalE {d = 1} [<] (DCloE (F "eq-ab" :% BV 0) (K One ::: id)) (F "A"),
equalED 1 empty (DCloE (F "eq-ab" :% BV 0) (K One ::: id)) (F "A"),
testEq "(eq-ab #0)#0,𝟎 = (eq-ab #0)" $
equalE {d = 2} [<]
equalED 2 empty
(DCloE (F "eq-ab" :% BV 0) (BV 0 ::: K Zero ::: id))
(F "eq-ab" :% BV 0),
testNeq "(eq-ab #0)𝟎 ≠ (eq-ab 𝟎)" $
equalE {d = 2} [<]
equalED 2 empty
(DCloE (F "eq-ab" :% BV 0) (BV 0 ::: K Zero ::: id))
(F "eq-ab" :% K Zero),
testEq "#0𝟎 = #0 # term and dim vars distinct" $
equalE {d = 1, n = 1} [< FT "A"] (DCloE (BV 0) (K Zero ::: id)) (BV 0),
equalED 1 (MkTyContext new [< FT "A"])
(DCloE (BV 0) (K Zero ::: id)) (BV 0),
testEq "a𝟎 = a" $
equalE {d = 1} [<] (DCloE (F "a") (K Zero ::: id)) (F "a"),
equalED 1 empty (DCloE (F "a") (K Zero ::: id)) (F "a"),
testEq "(f [a])𝟎 = f𝟎 [a]𝟎" $
let th = (K Zero ::: id) in
equalE {d = 1} [<]
equalED 1 empty
(DCloE (F "f" :@ FT "a") th)
(DCloE (F "f") th :@ DCloT (FT "a") th)
],
"clashes" :- [
testNeq "★₀ ≠ ★₀ ⇾ ★₀" $
equalT [<] (TYPE 1) (TYPE 0) (Arr Zero (TYPE 0) (TYPE 0)),
equalT empty (TYPE 1) (TYPE 0) (Arr Zero (TYPE 0) (TYPE 0)),
testEq "0=1 ⊢ ★₀ = ★₀ ⇾ ★₀" $
equalT [<] (TYPE 1) (TYPE 0) (Arr Zero (TYPE 0) (TYPE 0))
{eqs = ZeroIsOne},
equalT (MkTyContext ZeroIsOne [<])
(TYPE 1) (TYPE 0) (Arr Zero (TYPE 0) (TYPE 0)),
todo "others"
]
]

View file

@ -75,7 +75,7 @@ ctx = MkTyContext new
inferredTypeEq : TyContext Three d n -> (exp, got : Term Three d n) -> M ()
inferredTypeEq ctx exp got =
catchError
(inj $ equalType ctx.dctx ctx.tctx exp got)
(inj $ equalType ctx exp got)
(\_ : Error' => throwError $ WrongInfer exp got)
qoutEq : (exp, got : QOutput Three n) -> M ()