Require Import RepresentableStructure_ch7_2.
Require Import FunctorCategories_ch7_7.
+Require Import Enrichments.
Require Import NaturalDeduction.
Require Import NaturalDeductionCategory.
Context {T : Type}. (* types of the language *)
- Context (Judg : Type).
- Context (sequent : Tree ??T -> Tree ??T -> Judg).
+ Definition PLJudg := (Tree ??T) * (Tree ??T).
+ Definition sequent := @pair (Tree ??T) (Tree ??T).
Notation "cs |= ss" := (sequent cs ss) : pl_scope.
- Context {Rule : Tree ??Judg -> Tree ??Judg -> Type}.
+ Context {Rule : Tree ??PLJudg -> Tree ??PLJudg -> Type}.
Notation "H /⋯⋯/ C" := (ND Rule H C) : pl_scope.
Open Scope pl_scope.
Class ProgrammingLanguage :=
- { pl_eqv : @ND_Relation Judg Rule where "pf1 === pf2" := (@ndr_eqv _ _ pl_eqv _ _ pf1 pf2)
- ; pl_tsr :> @TreeStructuralRules Judg Rule T sequent
- ; pl_sc :> @SequentCalculus Judg Rule _ sequent
- ; pl_subst :> @CutRule Judg Rule _ sequent pl_eqv pl_sc
- ; pl_sequent_join :> @SequentExpansion Judg Rule T sequent pl_eqv pl_sc pl_subst
+ { pl_eqv0 : @ND_Relation PLJudg Rule
+ ; pl_snd :> @SequentND PLJudg Rule _ sequent
+ ; pl_cnd :> @ContextND PLJudg Rule T sequent pl_snd
+ ; pl_eqv1 :> @SequentND_Relation PLJudg Rule _ sequent pl_snd pl_eqv0
+ ; pl_eqv :> @ContextND_Relation PLJudg Rule _ sequent pl_snd pl_cnd pl_eqv0 pl_eqv1
}.
Notation "pf1 === pf2" := (@ndr_eqv _ _ pl_eqv _ _ pf1 pf2) : temporary_scope3.
Definition identityProof t : [] ~~{JudgmentsL}~~> [t |= t].
unfold hom; simpl.
- apply nd_seq_reflexive.
+ apply snd_initial.
Defined.
Definition cutProof a b c : [a |= b],,[b |= c] ~~{JudgmentsL}~~> [a |= c].
unfold hom; simpl.
- apply pl_subst.
+ apply snd_cut.
Defined.
+ Existing Instance pl_eqv.
+
Definition TypesL : ECategory JudgmentsL (Tree ??T) (fun x y => [x|=y]).
refine
{| eid := identityProof
; ecomp := cutProof
|}; intros.
- apply MonoidalCat_all_central.
- apply MonoidalCat_all_central.
- unfold identityProof; unfold cutProof; simpl.
- apply nd_cut_left_identity.
- unfold identityProof; unfold cutProof; simpl.
- apply nd_cut_right_identity.
- unfold identityProof; unfold cutProof; simpl.
- symmetry.
- apply nd_cut_associativity.
+ apply (mon_commutative(MonoidalCat:=JudgmentsL)).
+ apply (mon_commutative(MonoidalCat:=JudgmentsL)).
+ unfold identityProof; unfold cutProof; simpl; eapply cndr_inert. apply pl_eqv. auto. auto.
+ unfold identityProof; unfold cutProof; simpl; eapply cndr_inert. apply pl_eqv. auto. auto.
+ unfold identityProof; unfold cutProof; simpl; eapply cndr_inert. apply pl_eqv. auto. auto.
+ apply ndpc_comp; auto.
+ apply ndpc_comp; auto.
Defined.
- Definition Types_first c : EFunctor TypesL TypesL (fun x => x,,c ).
- refine {| efunc := fun x y => (@se_expand_right _ _ _ _ _ _ _ (@pl_sequent_join PL) c x y) |}.
- intros; apply MonoidalCat_all_central.
+ Instance Types_first c : EFunctor TypesL TypesL (fun x => x,,c ) :=
+ { efunc := fun x y => cnd_expand_right(ContextND:=pl_cnd) x y c }.
+ intros; apply (mon_commutative(MonoidalCat:=JudgmentsL)).
intros. unfold ehom. unfold hom. unfold identityProof. unfold eid. simpl. unfold identityProof.
- apply se_reflexive_right.
+ apply (cndr_inert pl_cnd); auto.
intros. unfold ehom. unfold comp. simpl. unfold cutProof.
- rewrite <- (@ndr_prod_preserves_comp _ _ pl_eqv _ _ (se_expand_right _ c) _ _ (nd_id1 (b|=c0))
- _ (nd_id1 (a,,c |= b,,c)) _ (se_expand_right _ c)).
+ rewrite <- (@ndr_prod_preserves_comp _ _ pl_eqv _ _ (cnd_expand_right _ _ c) _ _ (nd_id1 (b|=c0))
+ _ (nd_id1 (a,,c |= b,,c)) _ (cnd_expand_right _ _ c)).
setoid_rewrite (@ndr_comp_right_identity _ _ pl_eqv _ [a,, c |= b,, c]).
setoid_rewrite (@ndr_comp_left_identity _ _ pl_eqv [b |= c0]).
- apply se_cut_right.
+ simpl; eapply cndr_inert. apply pl_eqv. auto. auto.
Defined.
- Definition Types_second c : EFunctor TypesL TypesL (fun x => c,,x).
- eapply Build_EFunctor.
- instantiate (1:=(fun x y => ((@se_expand_left _ _ _ _ _ _ _ (@pl_sequent_join PL) c x y)))).
- intros; apply MonoidalCat_all_central.
+ Instance Types_second c : EFunctor TypesL TypesL (fun x => c,,x) :=
+ { efunc := fun x y => ((@cnd_expand_left _ _ _ _ _ _ x y c)) }.
+ intros; apply (mon_commutative(MonoidalCat:=JudgmentsL)).
intros. unfold ehom. unfold hom. unfold identityProof. unfold eid. simpl. unfold identityProof.
- apply se_reflexive_left.
+ eapply cndr_inert; auto. apply pl_eqv.
intros. unfold ehom. unfold comp. simpl. unfold cutProof.
- rewrite <- (@ndr_prod_preserves_comp _ _ pl_eqv _ _ (se_expand_left _ c) _ _ (nd_id1 (b|=c0))
- _ (nd_id1 (c,,a |= c,,b)) _ (se_expand_left _ c)).
+ rewrite <- (@ndr_prod_preserves_comp _ _ pl_eqv _ _ (cnd_expand_left _ _ c) _ _ (nd_id1 (b|=c0))
+ _ (nd_id1 (c,,a |= c,,b)) _ (cnd_expand_left _ _ c)).
setoid_rewrite (@ndr_comp_right_identity _ _ pl_eqv _ [c,,a |= c,,b]).
setoid_rewrite (@ndr_comp_left_identity _ _ pl_eqv [b |= c0]).
- apply se_cut_left.
+ simpl; eapply cndr_inert. apply pl_eqv. auto. auto.
Defined.
- Definition Types_binoidal : BinoidalCat TypesL (@T_Branch _).
+ Definition Types_binoidal : EBinoidalCat TypesL.
refine
- {| bin_first := Types_first
- ; bin_second := Types_second
+ {| ebc_first := Types_first
+ ; ebc_second := Types_second
|}.
Defined.
- Definition Types_assoc a b : Types_second a >>>> Types_first b <~~~> Types_first b >>>> Types_second a.
- admit.
+ Instance Types_assoc_iso a b c : Isomorphic(C:=TypesL) ((a,,b),,c) (a,,(b,,c)) :=
+ { iso_forward := snd_initial _ ;; cnd_ant_cossa _ a b c
+ ; iso_backward := snd_initial _ ;; cnd_ant_assoc _ a b c
+ }.
+ simpl; eapply cndr_inert. unfold identityProof; apply pl_eqv. auto.
+ apply ndpc_comp; auto.
+ apply ndpc_comp; auto.
+ auto.
+ simpl; eapply cndr_inert. unfold identityProof; apply pl_eqv. auto.
+ apply ndpc_comp; auto.
+ apply ndpc_comp; auto.
+ auto.
+ Defined.
+
+ Instance Types_cancelr_iso a : Isomorphic(C:=TypesL) (a,,[]) a :=
+ { iso_forward := snd_initial _ ;; cnd_ant_rlecnac _ a
+ ; iso_backward := snd_initial _ ;; cnd_ant_cancelr _ a
+ }.
+ unfold eqv; unfold comp; simpl.
+ eapply cndr_inert. apply pl_eqv. auto.
+ apply ndpc_comp; auto.
+ apply ndpc_comp; auto.
+ auto.
+ unfold eqv; unfold comp; simpl.
+ eapply cndr_inert. apply pl_eqv. auto.
+ apply ndpc_comp; auto.
+ apply ndpc_comp; auto.
+ auto.
Defined.
- Definition Types_cancelr : Types_first [] <~~~> functor_id _.
- admit.
+ Instance Types_cancell_iso a : Isomorphic(C:=TypesL) ([],,a) a :=
+ { iso_forward := snd_initial _ ;; cnd_ant_llecnac _ a
+ ; iso_backward := snd_initial _ ;; cnd_ant_cancell _ a
+ }.
+ unfold eqv; unfold comp; simpl.
+ eapply cndr_inert. apply pl_eqv. auto.
+ apply ndpc_comp; auto.
+ apply ndpc_comp; auto.
+ auto.
+ unfold eqv; unfold comp; simpl.
+ eapply cndr_inert. apply pl_eqv. auto.
+ apply ndpc_comp; auto.
+ apply ndpc_comp; auto.
+ auto.
Defined.
- Definition Types_cancell : Types_second [] <~~~> functor_id _.
+ Instance Types_assoc a b : Types_second a >>>> Types_first b <~~~> Types_first b >>>> Types_second a :=
+ { ni_iso := fun c => Types_assoc_iso a c b }.
admit.
Defined.
- Definition Types_assoc_ll a b : Types_second (a,,b) <~~~> Types_second b >>>> Types_second a.
+ Instance Types_cancelr : Types_first [] <~~~> functor_id _ :=
+ { ni_iso := Types_cancelr_iso }.
+ intros; simpl.
admit.
Defined.
- Definition Types_assoc_rr a b : Types_first (a,,b) <~~~> Types_first a >>>> Types_first b.
+ Instance Types_cancell : Types_second [] <~~~> functor_id _ :=
+ { ni_iso := Types_cancell_iso }.
admit.
Defined.
- Instance Types_PreMonoidal : PreMonoidalCat Types_binoidal [] :=
- { pmon_assoc := Types_assoc
- ; pmon_cancell := Types_cancell
- ; pmon_cancelr := Types_cancelr
- ; pmon_assoc_rr := Types_assoc_rr
- ; pmon_assoc_ll := Types_assoc_ll
- }.
- admit. (* pentagon law *)
- admit. (* triangle law *)
- admit. (* assoc_rr/assoc coherence *)
- admit. (* assoc_ll/assoc coherence *)
- Defined.
-
- Definition TypesEnrichedInJudgments : Enrichment.
- refine {| enr_c := TypesL |}.
+ Instance Types_assoc_ll a b : Types_second (a,,b) <~~~> Types_second b >>>> Types_second a :=
+ { ni_iso := fun c => Types_assoc_iso a b c }.
+ admit.
Defined.
- Structure HasProductTypes :=
- {
- }.
-
- Lemma CartesianEnrMonoidal (e:Enrichment) `(C:CartesianCat(Ob:= _)(Hom:= _)(C:=Underlying (enr_c e))) : MonoidalEnrichment e.
+ Instance Types_assoc_rr a b : Types_first (a,,b) <~~~> Types_first a >>>> Types_first b :=
+ { ni_iso := fun c => iso_inv _ _ (Types_assoc_iso c a b) }.
admit.
Defined.
- (* need to prove that if we have cartesian tuples we have cartesian contexts *)
- Definition LanguagesWithProductsAreSMME : HasProductTypes -> SurjectiveMonicMonoidalEnrichment TypesEnrichedInJudgments.
- admit.
+ Instance TypesL_PreMonoidal : PreMonoidalCat Types_binoidal [] :=
+ { pmon_assoc := Types_assoc
+ ; pmon_cancell := Types_cancell
+ ; pmon_cancelr := Types_cancelr
+ ; pmon_assoc_rr := Types_assoc_rr
+ ; pmon_assoc_ll := Types_assoc_ll
+ }.
+ apply Build_Pentagon.
+ intros; simpl.
+ eapply cndr_inert. apply pl_eqv.
+ apply ndpc_comp.
+ apply ndpc_comp.
+ auto.
+ apply ndpc_comp.
+ apply ndpc_prod.
+ apply ndpc_comp.
+ apply ndpc_comp.
+ auto.
+ apply ndpc_comp.
+ auto.
+ auto.
+ auto.
+ auto.
+ auto.
+ auto.
+ apply ndpc_comp.
+ apply ndpc_comp.
+ auto.
+ apply ndpc_comp.
+ auto.
+ auto.
+ auto.
+ apply Build_Triangle; intros; simpl.
+ eapply cndr_inert. apply pl_eqv.
+ auto.
+ apply ndpc_comp.
+ apply ndpc_comp.
+ auto.
+ apply ndpc_comp.
+ auto.
+ auto.
+ auto.
+ eapply cndr_inert. apply pl_eqv. auto.
+ auto.
+ intros; simpl; reflexivity.
+ intros; simpl; reflexivity.
+ admit. (* assoc central *)
+ admit. (* cancelr central *)
+ admit. (* cancell central *)
+ Defined.
+
+ Definition TypesEnrichedInJudgments : SurjectiveEnrichment.
+ refine
+ {| senr_c_pm := TypesL_PreMonoidal
+ ; senr_v := JudgmentsL
+ ; senr_v_bin := Judgments_Category_binoidal _
+ ; senr_v_pmon := Judgments_Category_premonoidal _
+ ; senr_v_mon := Judgments_Category_monoidal _
+ ; senr_c_bin := Types_binoidal
+ ; senr_c := TypesL
+ |}.
Defined.
End LanguageCategory.
End Programming_Language.
-
-Structure ProgrammingLanguageSMME :=
-{ plsmme_t : Type
-; plsmme_judg : Type
-; plsmme_sequent : Tree ??plsmme_t -> Tree ??plsmme_t -> plsmme_judg
-; plsmme_rule : Tree ??plsmme_judg -> Tree ??plsmme_judg -> Type
-; plsmme_pl : @ProgrammingLanguage plsmme_t plsmme_judg plsmme_sequent plsmme_rule
-; plsmme_smme : SurjectiveMonicMonoidalEnrichment (TypesEnrichedInJudgments _ _ plsmme_pl)
-}.
-Coercion plsmme_pl : ProgrammingLanguageSMME >-> ProgrammingLanguage.
-Coercion plsmme_smme : ProgrammingLanguageSMME >-> SurjectiveMonicMonoidalEnrichment.
-
Implicit Arguments ND [ Judgment ].
projects / coq-hetmet.git / blobdiff