use ! when possible to avoid overzealous generalization

tests/algebra.v

 From iris.base_logic.lib Require Import invariants.
 
 Section tests.
-  Context `{invG Σ}.
+  Context `{!invG Σ}.
 
   Program Definition test : (iProp Σ -n> iProp Σ) -n> (iProp Σ -n> iProp Σ) :=
     λne P v, (▷ (P v))%I.

tests/heap_lang.ref

 1 subgoal
   
   Σ : gFunctors
-  H : heapG Σ
+  heapG0 : heapG Σ
   E : coPset
   ============================
   --------------------------------------∗
@@ -10,7 +10,7 @@
 1 subgoal
   
   Σ : gFunctors
-  H : heapG Σ
+  heapG0 : heapG Σ
   E : coPset
   l : loc
   ============================
@@ -21,7 +21,7 @@
 1 subgoal
   
   Σ : gFunctors
-  H : heapG Σ
+  heapG0 : heapG Σ
   E : coPset
   l : loc
   ============================
@@ -35,7 +35,7 @@
 1 subgoal
   
   Σ : gFunctors
-  H : heapG Σ
+  heapG0 : heapG Σ
   l : loc
   ============================
   _ : ▷ l ↦ #0
@@ -45,7 +45,7 @@
 1 subgoal
   
   Σ : gFunctors
-  H : heapG Σ
+  heapG0 : heapG Σ
   l : loc
   ============================
   _ : l ↦ #1
@@ -55,7 +55,7 @@
 1 subgoal
   
   Σ : gFunctors
-  H : heapG Σ
+  heapG0 : heapG Σ
   l : loc
   ============================
   "Hl1" : l ↦{1 / 2} #0
@@ -66,7 +66,7 @@
 1 subgoal
   
   Σ : gFunctors
-  H : heapG Σ
+  heapG0 : heapG Σ
   l : loc
   ============================
   --------------------------------------∗
@@ -81,7 +81,7 @@ Tactic failure: wp_pure: cannot find ?y in (Var "x") or
 1 subgoal
   
   Σ : gFunctors
-  H : heapG Σ
+  heapG0 : heapG Σ
   ============================
   --------------------------------------∗
   WP "x" {{ _, True }}
@@ -89,7 +89,7 @@ Tactic failure: wp_pure: cannot find ?y in (Var "x") or
 1 subgoal
   
   Σ : gFunctors
-  H : heapG Σ
+  heapG0 : heapG Σ
   fun1, fun2, fun3 : expr
   ============================
   --------------------------------------∗
@@ -101,7 +101,7 @@ Tactic failure: wp_pure: cannot find ?y in (Var "x") or
 1 subgoal
   
   Σ : gFunctors
-  H : heapG Σ
+  heapG0 : heapG Σ
   fun1, fun2, fun3 : expr
   Φ : language.val heap_lang → iPropI Σ
   ============================
@@ -114,7 +114,7 @@ Tactic failure: wp_pure: cannot find ?y in (Var "x") or
 1 subgoal
   
   Σ : gFunctors
-  H : heapG Σ
+  heapG0 : heapG Σ
   fun1, fun2, fun3 : expr
   Φ : language.val heap_lang → iPropI Σ
   E : coPset
@@ -128,7 +128,7 @@ Tactic failure: wp_pure: cannot find ?y in (Var "x") or
 1 subgoal
   
   Σ : gFunctors
-  H : heapG Σ
+  heapG0 : heapG Σ
   fun1, fun2, fun3 : expr
   ============================
   {{{ True }}}

tests/heap_lang.v

@@ -6,7 +6,7 @@ Set Ltac Backtrace.
 Set Default Proof Using "Type".
 
 Section tests.
-  Context `{heapG Σ}.
+  Context `{!heapG Σ}.
   Implicit Types P Q : iProp Σ.
   Implicit Types Φ : val → iProp Σ.
 
@@ -147,7 +147,7 @@ Section tests.
 End tests.
 
 Section printing_tests.
-  Context `{heapG Σ}.
+  Context `{!heapG Σ}.
 
   (* These terms aren't even closed, but that's not what this is about.  The
   length of the variable names etc. has been carefully chosen to trigger
@@ -192,7 +192,7 @@ Section printing_tests.
 End printing_tests.
 
 Section error_tests.
-  Context `{heapG Σ}.
+  Context `{!heapG Σ}.
 
   Check "not_cas".
   Lemma not_cas :

tests/heap_lang2.ref

 1 subgoal
   
   Σ : gFunctors
-  H : heapG Σ
+  heapG0 : heapG Σ
   fun1, fun2, fun3 : expr
   ============================
   --------------------------------------∗

tests/heap_lang2.v

@@ -6,7 +6,7 @@ From iris.heap_lang Require Import proofmode notation.
 Set Default Proof Using "Type".
 
 Section printing_tests.
-  Context `{heapG Σ}.
+  Context `{!heapG Σ}.
 
   Lemma wp_print_long_expr (fun1 fun2 fun3 : expr) :
     True -∗ WP let: "val1" := fun1 #() in

tests/ipm_paper.v

@@ -107,7 +107,7 @@ under max can be found in [theories/heap_lang/lib/counter.v]. *)
 update modalities (which we did not cover in the paper). Normally we use these
 mask changing update modalities directly in our proofs, but in this file we use
 the first prove the rule as a lemma, and then use that. *)
-Lemma wp_inv_open `{irisG Λ Σ} N E P e Φ :
+Lemma wp_inv_open `{!irisG Λ Σ} N E P e Φ :
   nclose N ⊆ E → Atomic WeaklyAtomic e →
   inv N P ∗ (▷ P -∗ WP e @ E ∖ ↑N {{ v, ▷ P ∗ Φ v }}) ⊢ WP e @ E {{ Φ }}.
 Proof.

tests/proofmode.ref

@@ -131,7 +131,7 @@ Tactic failure: iFrame: cannot frame Q.
 1 subgoal
   
   PROP : sbi
-  H : BiAffine PROP
+  BiAffine0 : BiAffine PROP
   P, Q : PROP
   ============================
   _ : □ P

tests/proofmode.v

@@ -69,7 +69,7 @@ Lemma test_iDestruct_intuitionistic_2 P Q `{!Persistent P, !Affine P}:
   Q ∗ (Q -∗ P) -∗ P.
 Proof. iIntros "[HQ HQP]". iDestruct ("HQP" with "HQ") as "#HP". done. Qed.
 
-Lemma test_iDestruct_intuitionistic_affine_bi `{BiAffine PROP} P Q `{!Persistent P}:
+Lemma test_iDestruct_intuitionistic_affine_bi `{!BiAffine PROP} P Q `{!Persistent P}:
   Q ∗ (Q -∗ P) -∗ P ∗ Q.
 Proof. iIntros "[HQ HQP]". iDestruct ("HQP" with "HQ") as "#HP". by iFrame. Qed.
 
@@ -180,7 +180,7 @@ Lemma test_iFrame_conjunction_2 P Q :
   P -∗ Q -∗ (P ∧ P) ∗ (Q ∧ Q).
 Proof. iIntros "HP HQ". iFrame "HP HQ". Qed.
 
-Lemma test_iFrame_later `{BiAffine PROP} P Q : P -∗ Q -∗ ▷ P ∗ Q.
+Lemma test_iFrame_later `{!BiAffine PROP} P Q : P -∗ Q -∗ ▷ P ∗ Q.
 Proof. iIntros "H1 H2". by iFrame "H1". Qed.
 
 Lemma test_iAssert_modality P : ◇ False -∗ ▷ P.
@@ -555,7 +555,7 @@ Proof.
 Qed.
 
 Check "test_and_sep_affine_bi".
-Lemma test_and_sep_affine_bi `{BiAffine PROP} P Q : □ P ∧ Q ⊢ □ P ∗ Q.
+Lemma test_and_sep_affine_bi `{!BiAffine PROP} P Q : □ P ∧ Q ⊢ □ P ∗ Q.
 Proof.
   iIntros "[??]". iSplit; last done. Show. done.
 Qed.

tests/proofmode_iris.ref

 1 subgoal
   
   Σ : gFunctors
-  H : invG Σ
-  H0 : cinvG Σ
-  H1 : na_invG Σ
+  invG0 : invG Σ
+  cinvG0 : cinvG Σ
+  na_invG0 : na_invG Σ
   N : namespace
   P : iProp Σ
   ============================
@@ -15,9 +15,9 @@
 1 subgoal
   
   Σ : gFunctors
-  H : invG Σ
-  H0 : cinvG Σ
-  H1 : na_invG Σ
+  invG0 : invG Σ
+  cinvG0 : cinvG Σ
+  na_invG0 : na_invG Σ
   N : namespace
   P : iProp Σ
   ============================
@@ -31,9 +31,9 @@
 1 subgoal
   
   Σ : gFunctors
-  H : invG Σ
-  H0 : cinvG Σ
-  H1 : na_invG Σ
+  invG0 : invG Σ
+  cinvG0 : cinvG Σ
+  na_invG0 : na_invG Σ
   γ : gname
   p : Qp
   N : namespace
@@ -49,9 +49,9 @@
 1 subgoal
   
   Σ : gFunctors
-  H : invG Σ
-  H0 : cinvG Σ
-  H1 : na_invG Σ
+  invG0 : invG Σ
+  cinvG0 : cinvG Σ
+  na_invG0 : na_invG Σ
   γ : gname
   p : Qp
   N : namespace
@@ -68,14 +68,14 @@
 1 subgoal
   
   Σ : gFunctors
-  H : invG Σ
-  H0 : cinvG Σ
-  H1 : na_invG Σ
+  invG0 : invG Σ
+  cinvG0 : cinvG Σ
+  na_invG0 : na_invG Σ
   t : na_inv_pool_name
   N : namespace
   E1, E2 : coPset
   P : iProp Σ
-  H2 : ↑N ⊆ E2
+  H : ↑N ⊆ E2
   ============================
   _ : na_inv t N (<pers> P)
   "HP" : ▷ <pers> P
@@ -89,14 +89,14 @@
 1 subgoal
   
   Σ : gFunctors
-  H : invG Σ
-  H0 : cinvG Σ
-  H1 : na_invG Σ
+  invG0 : invG Σ
+  cinvG0 : cinvG Σ
+  na_invG0 : na_invG Σ
   t : na_inv_pool_name
   N : namespace
   E1, E2 : coPset
   P : iProp Σ
-  H2 : ↑N ⊆ E2
+  H : ↑N ⊆ E2
   ============================
   _ : na_inv t N (<pers> P)
   "HP" : ▷ <pers> P
@@ -132,12 +132,12 @@ Tactic failure: iInv: invariant "H2" not found.
 1 subgoal
   
   Σ : gFunctors
-  H : invG Σ
+  invG0 : invG Σ
   I : biIndex
   N : namespace
   E : coPset
   𝓟 : iProp Σ
-  H0 : ↑N ⊆ E
+  H : ↑N ⊆ E
   ============================
   "HP" : ⎡ ▷ 𝓟 ⎤
   --------------------------------------∗
@@ -148,12 +148,12 @@ Tactic failure: iInv: invariant "H2" not found.
 1 subgoal
   
   Σ : gFunctors
-  H : invG Σ
+  invG0 : invG Σ
   I : biIndex
   N : namespace
   E : coPset
   𝓟 : iProp Σ
-  H0 : ↑N ⊆ E
+  H : ↑N ⊆ E
   ============================
   "HP" : ⎡ ▷ 𝓟 ⎤
   "Hclose" : ⎡ ▷ 𝓟 ={E ∖ ↑N,E}=∗ emp ⎤

tests/proofmode_iris.v

@@ -50,7 +50,7 @@ Section base_logic_tests.
 End base_logic_tests.
 
 Section iris_tests.
-  Context `{invG Σ, cinvG Σ, na_invG Σ}.
+  Context `{!invG Σ, !cinvG Σ, !na_invG Σ}.
   Implicit Types P Q R : iProp Σ.
 
   Lemma test_masks  N E P Q R :
@@ -223,7 +223,7 @@ Section iris_tests.
 End iris_tests.
 
 Section monpred_tests.
-  Context `{invG Σ}.
+  Context `{!invG Σ}.
   Context {I : biIndex}.
   Local Notation monPred := (monPred I (iPropI Σ)).
   Local Notation monPredI := (monPredI I (iPropI Σ)).

theories/algebra/agree.v

@@ -266,7 +266,7 @@ Lemma agree_map_to_agree {A B} (f : A → B) (x : A) :
 Proof. by apply agree_eq. Qed.
 
 Section agree_map.
-  Context {A B : ofeT} (f : A → B) `{Hf: NonExpansive f}.
+  Context {A B : ofeT} (f : A → B) {Hf: NonExpansive f}.
 
   Instance agree_map_ne : NonExpansive (agree_map f).
   Proof.

theories/algebra/auth.v

@@ -43,7 +43,7 @@ Definition auth_ofe_mixin : OfeMixin (auth A).
 Proof. by apply (iso_ofe_mixin (λ x, (authoritative x, auth_own x))). Qed.
 Canonical Structure authC := OfeT (auth A) auth_ofe_mixin.
 
-Global Instance auth_cofe `{Cofe A} : Cofe authC.
+Global Instance auth_cofe `{!Cofe A} : Cofe authC.
 Proof.
   apply (iso_cofe (λ y : _ * _, Auth (y.1) (y.2))
     (λ x, (authoritative x, auth_own x))); by repeat intro.
@@ -113,7 +113,7 @@ Proof.
   destruct x as [[[]|]]; naive_solver eauto using cmra_validN_includedN.
 Qed.
 
-Lemma auth_valid_discrete `{CmraDiscrete A} x :
+Lemma auth_valid_discrete `{!CmraDiscrete A} x :
   ✓ x ↔ match authoritative x with
         | Excl' a => auth_own x ≼ a ∧ ✓ a
         | None => ✓ auth_own x
@@ -125,12 +125,12 @@ Proof.
 Qed.
 Lemma auth_validN_2 n a b : ✓{n} (● a ⋅ ◯ b) ↔ b ≼{n} a ∧ ✓{n} a.
 Proof. by rewrite auth_validN_eq /= left_id. Qed.
-Lemma auth_valid_discrete_2 `{CmraDiscrete A} a b : ✓ (● a ⋅ ◯ b) ↔ b ≼ a ∧ ✓ a.
+Lemma auth_valid_discrete_2 `{!CmraDiscrete A} a b : ✓ (● a ⋅ ◯ b) ↔ b ≼ a ∧ ✓ a.
 Proof. by rewrite auth_valid_discrete /= left_id. Qed.
 
 Lemma authoritative_valid  x : ✓ x → ✓ authoritative x.
 Proof. by destruct x as [[[]|]]. Qed.
-Lemma auth_own_valid `{CmraDiscrete A} x : ✓ x → ✓ auth_own x.
+Lemma auth_own_valid `{!CmraDiscrete A} x : ✓ x → ✓ auth_own x.
 Proof.
   rewrite auth_valid_discrete.
   destruct x as [[[]|]]; naive_solver eauto using cmra_valid_included.

theories/algebra/excl.v

@@ -52,7 +52,7 @@ Proof.
 Qed.
 Canonical Structure exclC : ofeT := OfeT (excl A) excl_ofe_mixin.
 
-Global Instance excl_cofe `{Cofe A} : Cofe exclC.
+Global Instance excl_cofe `{!Cofe A} : Cofe exclC.
 Proof.
   apply (iso_cofe (from_option Excl ExclBot) (maybe Excl)).
   - by intros n [a|] [b|]; split; inversion_clear 1; constructor.

theories/algebra/gmap.v

@@ -353,7 +353,7 @@ Qed.
 
 Section freshness.
   Local Set Default Proof Using "Type*".
-  Context `{Infinite K}.
+  Context `{!Infinite K}.
   Lemma alloc_updateP_strong (Q : gmap K A → Prop) (I : gset K) m x :
     ✓ x → (∀ i, m !! i = None → i ∉ I → Q (<[i:=x]>m)) → m ~~>: Q.
   Proof.

theories/algebra/gset.v

@@ -163,7 +163,7 @@ Section gset_disj.
 
   Section fresh_updates.
     Local Set Default Proof Using "Type*".
-    Context `{Infinite K}.
+    Context `{!Infinite K}.
 
     Lemma gset_disj_alloc_updateP (Q : gset_disj K → Prop) X :
       (∀ i, i ∉ X → Q (GSet ({[i]} ∪ X))) → GSet X ~~>: Q.

theories/algebra/list.v

@@ -58,12 +58,12 @@ Program Definition list_chain
     (c : chain listC) (x : A) (k : nat) : chain A :=
   {| chain_car n := default x (c n !! k) |}.
 Next Obligation. intros c x k n i ?. by rewrite /= (chain_cauchy c n i). Qed.
-Definition list_compl `{Cofe A} : Compl listC := λ c,
+Definition list_compl `{!Cofe A} : Compl listC := λ c,
   match c 0 with
   | [] => []
   | x :: _ => compl ∘ list_chain c x <$> seq 0 (length (c 0))
   end.
-Global Program Instance list_cofe `{Cofe A} : Cofe listC :=
+Global Program Instance list_cofe `{!Cofe A} : Cofe listC :=
   {| compl := list_compl |}.
 Next Obligation.
   intros ? n c; rewrite /compl /list_compl.

theories/base_logic/bi.v

@@ -202,7 +202,7 @@ Lemma option_validI {A : cmraT} (mx : option A) :
 Proof. exact: uPred_primitive.option_validI. Qed.
 Lemma discrete_valid {A : cmraT} `{!CmraDiscrete A} (a : A) : ✓ a ⊣⊢ ⌜✓ a⌝.
 Proof. exact: uPred_primitive.discrete_valid. Qed.
-Lemma ofe_fun_validI `{B : A → ucmraT} (g : ofe_fun B) : ✓ g ⊣⊢ ∀ i, ✓ g i.
+Lemma ofe_fun_validI {A} {B : A → ucmraT} (g : ofe_fun B) : ✓ g ⊣⊢ ∀ i, ✓ g i.
 Proof. exact: uPred_primitive.ofe_fun_validI. Qed.
 
 (** Consistency/soundness statement *)

theories/base_logic/derived.v

@@ -60,7 +60,7 @@ Proof.
 Qed.
 
 (** Timeless instances *)
-Global Instance valid_timeless {A : cmraT} `{CmraDiscrete A} (a : A) :
+Global Instance valid_timeless {A : cmraT} `{!CmraDiscrete A} (a : A) :
   Timeless (✓ a : uPred M)%I.
 Proof. rewrite /Timeless !discrete_valid. apply (timeless _). Qed.
 Global Instance ownM_timeless (a : M) : Discrete a → Timeless (uPred_ownM a).

theories/base_logic/lib/auth.v

@@ -16,7 +16,7 @@ Instance subG_authΣ Σ A : subG (authΣ A) Σ → CmraDiscrete A → authG Σ A
 Proof. solve_inG. Qed.
 
 Section definitions.
-  Context `{invG Σ, authG Σ A} {T : Type} (γ : gname).
+  Context `{!invG Σ, !authG Σ A} {T : Type} (γ : gname).
 
   Definition auth_own (a : A) : iProp Σ :=
     own γ (◯ a).
@@ -60,7 +60,7 @@ Instance: Params (@auth_inv) 5 := {}.
 Instance: Params (@auth_ctx) 7 := {}.
 
 Section auth.
-  Context `{invG Σ, authG Σ A}.
+  Context `{!invG Σ, !authG Σ A}.
   Context {T : Type} `{!Inhabited T}.
   Context (f : T → A) (φ : T → iProp Σ).
   Implicit Types N : namespace.

theories/base_logic/lib/boxes.v

@@ -17,7 +17,7 @@ Instance subG_boxΣ Σ : subG boxΣ Σ → boxG Σ.
 Proof. solve_inG. Qed.
 
 Section box_defs.
-  Context `{invG Σ, boxG Σ} (N : namespace).
+  Context `{!invG Σ, !boxG Σ} (N : namespace).
 
   Definition slice_name := gname.
 
@@ -46,7 +46,7 @@ Instance: Params (@slice) 5 := {}.
 Instance: Params (@box) 5 := {}.
 
 Section box.
-Context `{invG Σ, boxG Σ} (N : namespace).
+Context `{!invG Σ, !boxG Σ} (N : namespace).
 Implicit Types P Q : iProp Σ.
 
 Global Instance box_own_prop_ne γ : NonExpansive (box_own_prop γ).