geometry.manifold.cont_mdiff_map ⟷ Mathlib.Geometry.Manifold.ContMDiffMap

mathlib commit https://github.com/leanprover-community/mathlib/commit/65a1391a0106c9204fe45bc73a039f056558cb83

@@ -3,7 +3,7 @@ Copyright © 2020 Nicolò Cavalleri. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Nicolò Cavalleri
 -/
-import Geometry.Manifold.ContMdiff
+import Geometry.Manifold.ContMDiff.Defs
 import Topology.ContinuousFunction.Basic
 
 #align_import geometry.manifold.cont_mdiff_map from "leanprover-community/mathlib"@"30faa0c3618ce1472bf6305ae0e3fa56affa3f95"

mathlib commit https://github.com/leanprover-community/mathlib/commit/65a1391a0106c9204fe45bc73a039f056558cb83

@@ -57,12 +57,12 @@ namespace ContMDiffMap
 
 variable {I} {I'} {M} {M'} {n}
 
-#print ContMDiffMap.instDFunLike /-
-instance instDFunLike : DFunLike C^n⟮I, M; I', M'⟯ M fun _ => M'
+#print ContMDiffMap.instFunLike /-
+instance instFunLike : DFunLike C^n⟮I, M; I', M'⟯ M fun _ => M'
     where
   coe := Subtype.val
   coe_injective' := Subtype.coe_injective
-#align cont_mdiff_map.fun_like ContMDiffMap.instDFunLike
+#align cont_mdiff_map.fun_like ContMDiffMap.instFunLike
 -/
 
 #print ContMDiffMap.contMDiff /-
@@ -80,7 +80,7 @@ protected theorem smooth (f : C^∞⟮I, M; I', M'⟯) : Smooth I I' f :=
 instance : Coe C^n⟮I, M; I', M'⟯ C(M, M') :=
   ⟨fun f => ⟨f, f.ContMDiff.Continuous⟩⟩
 
-attribute [to_additive_ignore_args 21] ContMDiffMap ContMDiffMap.instDFunLike
+attribute [to_additive_ignore_args 21] ContMDiffMap ContMDiffMap.instFunLike
   ContMDiffMap.ContinuousMap.hasCoe
 
 variable {f g : C^n⟮I, M; I', M'⟯}

mathlib commit https://github.com/leanprover-community/mathlib/commit/65a1391a0106c9204fe45bc73a039f056558cb83

@@ -57,12 +57,12 @@ namespace ContMDiffMap
 
 variable {I} {I'} {M} {M'} {n}
 
-#print ContMDiffMap.funLike /-
-instance funLike : FunLike C^n⟮I, M; I', M'⟯ M fun _ => M'
+#print ContMDiffMap.instDFunLike /-
+instance instDFunLike : DFunLike C^n⟮I, M; I', M'⟯ M fun _ => M'
     where
   coe := Subtype.val
   coe_injective' := Subtype.coe_injective
-#align cont_mdiff_map.fun_like ContMDiffMap.funLike
+#align cont_mdiff_map.fun_like ContMDiffMap.instDFunLike
 -/
 
 #print ContMDiffMap.contMDiff /-
@@ -80,7 +80,7 @@ protected theorem smooth (f : C^∞⟮I, M; I', M'⟯) : Smooth I I' f :=
 instance : Coe C^n⟮I, M; I', M'⟯ C(M, M') :=
   ⟨fun f => ⟨f, f.ContMDiff.Continuous⟩⟩
 
-attribute [to_additive_ignore_args 21] ContMDiffMap ContMDiffMap.funLike
+attribute [to_additive_ignore_args 21] ContMDiffMap ContMDiffMap.instDFunLike
   ContMDiffMap.ContinuousMap.hasCoe
 
 variable {f g : C^n⟮I, M; I', M'⟯}

mathlib commit https://github.com/leanprover-community/mathlib/commit/ce64cd319bb6b3e82f31c2d38e79080d377be451

@@ -3,8 +3,8 @@ Copyright © 2020 Nicolò Cavalleri. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Nicolò Cavalleri
 -/
-import Mathbin.Geometry.Manifold.ContMdiff
-import Mathbin.Topology.ContinuousFunction.Basic
+import Geometry.Manifold.ContMdiff
+import Topology.ContinuousFunction.Basic
 
 #align_import geometry.manifold.cont_mdiff_map from "leanprover-community/mathlib"@"30faa0c3618ce1472bf6305ae0e3fa56affa3f95"
 

mathlib commit https://github.com/leanprover-community/mathlib/commit/8ea5598db6caeddde6cb734aa179cc2408dbd345

@@ -2,15 +2,12 @@
 Copyright © 2020 Nicolò Cavalleri. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Nicolò Cavalleri
-
-! This file was ported from Lean 3 source module geometry.manifold.cont_mdiff_map
-! leanprover-community/mathlib commit 30faa0c3618ce1472bf6305ae0e3fa56affa3f95
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Geometry.Manifold.ContMdiff
 import Mathbin.Topology.ContinuousFunction.Basic
 
+#align_import geometry.manifold.cont_mdiff_map from "leanprover-community/mathlib"@"30faa0c3618ce1472bf6305ae0e3fa56affa3f95"
+
 /-!
 # Smooth bundled map
 

mathlib commit https://github.com/leanprover-community/mathlib/commit/8b981918a93bc45a8600de608cde7944a80d92b9

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Nicolò Cavalleri
 
 ! This file was ported from Lean 3 source module geometry.manifold.cont_mdiff_map
-! leanprover-community/mathlib commit 86c29aefdba50b3f33e86e52e3b2f51a0d8f0282
+! leanprover-community/mathlib commit 30faa0c3618ce1472bf6305ae0e3fa56affa3f95
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -14,6 +14,9 @@ import Mathbin.Topology.ContinuousFunction.Basic
 /-!
 # Smooth bundled map
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 In this file we define the type `cont_mdiff_map` of `n` times continuously differentiable
 bundled maps.
 -/

mathlib commit https://github.com/leanprover-community/mathlib/commit/93f880918cb51905fd51b76add8273cbc27718ab

@@ -31,115 +31,147 @@ variable {𝕜 : Type _} [NontriviallyNormedField 𝕜] {E : Type _} [NormedAddC
   [NormedAddCommGroup F] [NormedSpace 𝕜 F] {G : Type _} [TopologicalSpace G]
   {J : ModelWithCorners 𝕜 F G} {N : Type _} [TopologicalSpace N] [ChartedSpace G N] (n : ℕ∞)
 
+#print ContMDiffMap /-
 /-- Bundled `n` times continuously differentiable maps. -/
-def ContMdiffMap :=
+def ContMDiffMap :=
   { f : M → M' // ContMDiff I I' n f }
-#align cont_mdiff_map ContMdiffMap
+#align cont_mdiff_map ContMDiffMap
+-/
 
+#print SmoothMap /-
 /-- Bundled smooth maps. -/
 @[reducible]
 def SmoothMap :=
-  ContMdiffMap I I' M M' ⊤
+  ContMDiffMap I I' M M' ⊤
 #align smooth_map SmoothMap
+-/
 
-scoped[Manifold] notation "C^" n "⟮" I ", " M "; " I' ", " M' "⟯" => ContMdiffMap I I' M M' n
+scoped[Manifold] notation "C^" n "⟮" I ", " M "; " I' ", " M' "⟯" => ContMDiffMap I I' M M' n
 
 scoped[Manifold]
-  notation "C^" n "⟮" I ", " M "; " k "⟯" => ContMdiffMap I (modelWithCornersSelf k k) M k n
+  notation "C^" n "⟮" I ", " M "; " k "⟯" => ContMDiffMap I (modelWithCornersSelf k k) M k n
 
 open scoped Manifold
 
-namespace ContMdiffMap
+namespace ContMDiffMap
 
 variable {I} {I'} {M} {M'} {n}
 
+#print ContMDiffMap.funLike /-
 instance funLike : FunLike C^n⟮I, M; I', M'⟯ M fun _ => M'
     where
   coe := Subtype.val
   coe_injective' := Subtype.coe_injective
-#align cont_mdiff_map.fun_like ContMdiffMap.funLike
+#align cont_mdiff_map.fun_like ContMDiffMap.funLike
+-/
 
+#print ContMDiffMap.contMDiff /-
 protected theorem contMDiff (f : C^n⟮I, M; I', M'⟯) : ContMDiff I I' n f :=
   f.Prop
-#align cont_mdiff_map.cont_mdiff ContMdiffMap.contMDiff
+#align cont_mdiff_map.cont_mdiff ContMDiffMap.contMDiff
+-/
 
+#print ContMDiffMap.smooth /-
 protected theorem smooth (f : C^∞⟮I, M; I', M'⟯) : Smooth I I' f :=
   f.Prop
-#align cont_mdiff_map.smooth ContMdiffMap.smooth
+#align cont_mdiff_map.smooth ContMDiffMap.smooth
+-/
 
 instance : Coe C^n⟮I, M; I', M'⟯ C(M, M') :=
   ⟨fun f => ⟨f, f.ContMDiff.Continuous⟩⟩
 
-attribute [to_additive_ignore_args 21] ContMdiffMap ContMdiffMap.funLike
-  ContMdiffMap.ContinuousMap.hasCoe
+attribute [to_additive_ignore_args 21] ContMDiffMap ContMDiffMap.funLike
+  ContMDiffMap.ContinuousMap.hasCoe
 
 variable {f g : C^n⟮I, M; I', M'⟯}
 
+#print ContMDiffMap.coeFn_mk /-
 @[simp]
 theorem coeFn_mk (f : M → M') (hf : ContMDiff I I' n f) :
     ((Subtype.mk f hf : C^n⟮I, M; I', M'⟯) : M → M') = f :=
   rfl
-#align cont_mdiff_map.coe_fn_mk ContMdiffMap.coeFn_mk
+#align cont_mdiff_map.coe_fn_mk ContMDiffMap.coeFn_mk
+-/
 
-theorem coe_inj ⦃f g : C^n⟮I, M; I', M'⟯⦄ (h : (f : M → M') = g) : f = g := by
+#print ContMDiffMap.coe_injective /-
+theorem coe_injective ⦃f g : C^n⟮I, M; I', M'⟯⦄ (h : (f : M → M') = g) : f = g := by
   cases f <;> cases g <;> cases h <;> rfl
-#align cont_mdiff_map.coe_inj ContMdiffMap.coe_inj
+#align cont_mdiff_map.coe_inj ContMDiffMap.coe_injective
+-/
 
+#print ContMDiffMap.ext /-
 @[ext]
 theorem ext (h : ∀ x, f x = g x) : f = g := by cases f <;> cases g <;> congr <;> exact funext h
-#align cont_mdiff_map.ext ContMdiffMap.ext
+#align cont_mdiff_map.ext ContMDiffMap.ext
+-/
 
 instance : ContinuousMapClass C^n⟮I, M; I', M'⟯ M M'
     where
   coe f := ⇑f
-  coe_injective' := coe_inj
+  coe_injective' := coe_injective
   map_continuous f := f.ContMDiff.Continuous
 
+#print ContMDiffMap.id /-
 /-- The identity as a smooth map. -/
 def id : C^n⟮I, M; I, M⟯ :=
   ⟨id, contMDiff_id⟩
-#align cont_mdiff_map.id ContMdiffMap.id
+#align cont_mdiff_map.id ContMDiffMap.id
+-/
 
+#print ContMDiffMap.comp /-
 /-- The composition of smooth maps, as a smooth map. -/
 def comp (f : C^n⟮I', M'; I'', M''⟯) (g : C^n⟮I, M; I', M'⟯) : C^n⟮I, M; I'', M''⟯
     where
   val a := f (g a)
   property := f.ContMDiff.comp g.ContMDiff
-#align cont_mdiff_map.comp ContMdiffMap.comp
+#align cont_mdiff_map.comp ContMDiffMap.comp
+-/
 
+#print ContMDiffMap.comp_apply /-
 @[simp]
 theorem comp_apply (f : C^n⟮I', M'; I'', M''⟯) (g : C^n⟮I, M; I', M'⟯) (x : M) :
     f.comp g x = f (g x) :=
   rfl
-#align cont_mdiff_map.comp_apply ContMdiffMap.comp_apply
+#align cont_mdiff_map.comp_apply ContMDiffMap.comp_apply
+-/
 
 instance [Inhabited M'] : Inhabited C^n⟮I, M; I', M'⟯ :=
   ⟨⟨fun _ => default, contMDiff_const⟩⟩
 
+#print ContMDiffMap.const /-
 /-- Constant map as a smooth map -/
 def const (y : M') : C^n⟮I, M; I', M'⟯ :=
   ⟨fun x => y, contMDiff_const⟩
-#align cont_mdiff_map.const ContMdiffMap.const
+#align cont_mdiff_map.const ContMDiffMap.const
+-/
 
+#print ContMDiffMap.fst /-
 /-- The first projection of a product, as a smooth map. -/
 def fst : C^n⟮I.Prod I', M × M'; I, M⟯ :=
   ⟨Prod.fst, contMDiff_fst⟩
-#align cont_mdiff_map.fst ContMdiffMap.fst
+#align cont_mdiff_map.fst ContMDiffMap.fst
+-/
 
+#print ContMDiffMap.snd /-
 /-- The second projection of a product, as a smooth map. -/
 def snd : C^n⟮I.Prod I', M × M'; I', M'⟯ :=
   ⟨Prod.snd, contMDiff_snd⟩
-#align cont_mdiff_map.snd ContMdiffMap.snd
+#align cont_mdiff_map.snd ContMDiffMap.snd
+-/
 
+#print ContMDiffMap.prodMk /-
 /-- Given two smooth maps `f` and `g`, this is the smooth map `x ↦ (f x, g x)`. -/
 def prodMk (f : C^n⟮J, N; I, M⟯) (g : C^n⟮J, N; I', M'⟯) : C^n⟮J, N; I.Prod I', M × M'⟯ :=
   ⟨fun x => (f x, g x), f.2.prod_mk g.2⟩
-#align cont_mdiff_map.prod_mk ContMdiffMap.prodMk
+#align cont_mdiff_map.prod_mk ContMDiffMap.prodMk
+-/
 
-end ContMdiffMap
+end ContMDiffMap
 
-instance ContinuousLinearMap.hasCoeToContMdiffMap :
+#print ContinuousLinearMap.hasCoeToContMDiffMap /-
+instance ContinuousLinearMap.hasCoeToContMDiffMap :
     Coe (E →L[𝕜] E') C^n⟮𝓘(𝕜, E), E; 𝓘(𝕜, E'), E'⟯ :=
   ⟨fun f => ⟨f.toFun, f.ContMDiff⟩⟩
-#align continuous_linear_map.has_coe_to_cont_mdiff_map ContinuousLinearMap.hasCoeToContMdiffMap
+#align continuous_linear_map.has_coe_to_cont_mdiff_map ContinuousLinearMap.hasCoeToContMDiffMap
+-/
 

mathlib commit https://github.com/leanprover-community/mathlib/commit/93f880918cb51905fd51b76add8273cbc27718ab

@@ -33,7 +33,7 @@ variable {𝕜 : Type _} [NontriviallyNormedField 𝕜] {E : Type _} [NormedAddC
 
 /-- Bundled `n` times continuously differentiable maps. -/
 def ContMdiffMap :=
-  { f : M → M' // ContMdiff I I' n f }
+  { f : M → M' // ContMDiff I I' n f }
 #align cont_mdiff_map ContMdiffMap
 
 /-- Bundled smooth maps. -/
@@ -59,16 +59,16 @@ instance funLike : FunLike C^n⟮I, M; I', M'⟯ M fun _ => M'
   coe_injective' := Subtype.coe_injective
 #align cont_mdiff_map.fun_like ContMdiffMap.funLike
 
-protected theorem contMdiff (f : C^n⟮I, M; I', M'⟯) : ContMdiff I I' n f :=
+protected theorem contMDiff (f : C^n⟮I, M; I', M'⟯) : ContMDiff I I' n f :=
   f.Prop
-#align cont_mdiff_map.cont_mdiff ContMdiffMap.contMdiff
+#align cont_mdiff_map.cont_mdiff ContMdiffMap.contMDiff
 
 protected theorem smooth (f : C^∞⟮I, M; I', M'⟯) : Smooth I I' f :=
   f.Prop
 #align cont_mdiff_map.smooth ContMdiffMap.smooth
 
 instance : Coe C^n⟮I, M; I', M'⟯ C(M, M') :=
-  ⟨fun f => ⟨f, f.ContMdiff.Continuous⟩⟩
+  ⟨fun f => ⟨f, f.ContMDiff.Continuous⟩⟩
 
 attribute [to_additive_ignore_args 21] ContMdiffMap ContMdiffMap.funLike
   ContMdiffMap.ContinuousMap.hasCoe
@@ -76,7 +76,7 @@ attribute [to_additive_ignore_args 21] ContMdiffMap ContMdiffMap.funLike
 variable {f g : C^n⟮I, M; I', M'⟯}
 
 @[simp]
-theorem coeFn_mk (f : M → M') (hf : ContMdiff I I' n f) :
+theorem coeFn_mk (f : M → M') (hf : ContMDiff I I' n f) :
     ((Subtype.mk f hf : C^n⟮I, M; I', M'⟯) : M → M') = f :=
   rfl
 #align cont_mdiff_map.coe_fn_mk ContMdiffMap.coeFn_mk
@@ -93,18 +93,18 @@ instance : ContinuousMapClass C^n⟮I, M; I', M'⟯ M M'
     where
   coe f := ⇑f
   coe_injective' := coe_inj
-  map_continuous f := f.ContMdiff.Continuous
+  map_continuous f := f.ContMDiff.Continuous
 
 /-- The identity as a smooth map. -/
 def id : C^n⟮I, M; I, M⟯ :=
-  ⟨id, contMdiff_id⟩
+  ⟨id, contMDiff_id⟩
 #align cont_mdiff_map.id ContMdiffMap.id
 
 /-- The composition of smooth maps, as a smooth map. -/
 def comp (f : C^n⟮I', M'; I'', M''⟯) (g : C^n⟮I, M; I', M'⟯) : C^n⟮I, M; I'', M''⟯
     where
   val a := f (g a)
-  property := f.ContMdiff.comp g.ContMdiff
+  property := f.ContMDiff.comp g.ContMDiff
 #align cont_mdiff_map.comp ContMdiffMap.comp
 
 @[simp]
@@ -114,21 +114,21 @@ theorem comp_apply (f : C^n⟮I', M'; I'', M''⟯) (g : C^n⟮I, M; I', M'⟯) (
 #align cont_mdiff_map.comp_apply ContMdiffMap.comp_apply
 
 instance [Inhabited M'] : Inhabited C^n⟮I, M; I', M'⟯ :=
-  ⟨⟨fun _ => default, contMdiff_const⟩⟩
+  ⟨⟨fun _ => default, contMDiff_const⟩⟩
 
 /-- Constant map as a smooth map -/
 def const (y : M') : C^n⟮I, M; I', M'⟯ :=
-  ⟨fun x => y, contMdiff_const⟩
+  ⟨fun x => y, contMDiff_const⟩
 #align cont_mdiff_map.const ContMdiffMap.const
 
 /-- The first projection of a product, as a smooth map. -/
 def fst : C^n⟮I.Prod I', M × M'; I, M⟯ :=
-  ⟨Prod.fst, contMdiff_fst⟩
+  ⟨Prod.fst, contMDiff_fst⟩
 #align cont_mdiff_map.fst ContMdiffMap.fst
 
 /-- The second projection of a product, as a smooth map. -/
 def snd : C^n⟮I.Prod I', M × M'; I', M'⟯ :=
-  ⟨Prod.snd, contMdiff_snd⟩
+  ⟨Prod.snd, contMDiff_snd⟩
 #align cont_mdiff_map.snd ContMdiffMap.snd
 
 /-- Given two smooth maps `f` and `g`, this is the smooth map `x ↦ (f x, g x)`. -/
@@ -140,6 +140,6 @@ end ContMdiffMap
 
 instance ContinuousLinearMap.hasCoeToContMdiffMap :
     Coe (E →L[𝕜] E') C^n⟮𝓘(𝕜, E), E; 𝓘(𝕜, E'), E'⟯ :=
-  ⟨fun f => ⟨f.toFun, f.ContMdiff⟩⟩
+  ⟨fun f => ⟨f.toFun, f.ContMDiff⟩⟩
 #align continuous_linear_map.has_coe_to_cont_mdiff_map ContinuousLinearMap.hasCoeToContMdiffMap
 

mathlib commit https://github.com/leanprover-community/mathlib/commit/f2ad3645af9effcdb587637dc28a6074edc813f9

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Nicolò Cavalleri
 
 ! This file was ported from Lean 3 source module geometry.manifold.cont_mdiff_map
-! leanprover-community/mathlib commit e354e865255654389cc46e6032160238df2e0f40
+! leanprover-community/mathlib commit 86c29aefdba50b3f33e86e52e3b2f51a0d8f0282
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -32,10 +32,8 @@ variable {𝕜 : Type _} [NontriviallyNormedField 𝕜] {E : Type _} [NormedAddC
   {J : ModelWithCorners 𝕜 F G} {N : Type _} [TopologicalSpace N] [ChartedSpace G N] (n : ℕ∞)
 
 /-- Bundled `n` times continuously differentiable maps. -/
-@[protect_proj]
-structure ContMdiffMap where
-  toFun : M → M'
-  contMdiff_toFun : ContMdiff I I' n to_fun
+def ContMdiffMap :=
+  { f : M → M' // ContMdiff I I' n f }
 #align cont_mdiff_map ContMdiffMap
 
 /-- Bundled smooth maps. -/
@@ -55,30 +53,34 @@ namespace ContMdiffMap
 
 variable {I} {I'} {M} {M'} {n}
 
-instance : CoeFun C^n⟮I, M; I', M'⟯ fun _ => M → M' :=
-  ⟨ContMdiffMap.toFun⟩
+instance funLike : FunLike C^n⟮I, M; I', M'⟯ M fun _ => M'
+    where
+  coe := Subtype.val
+  coe_injective' := Subtype.coe_injective
+#align cont_mdiff_map.fun_like ContMdiffMap.funLike
+
+protected theorem contMdiff (f : C^n⟮I, M; I', M'⟯) : ContMdiff I I' n f :=
+  f.Prop
+#align cont_mdiff_map.cont_mdiff ContMdiffMap.contMdiff
+
+protected theorem smooth (f : C^∞⟮I, M; I', M'⟯) : Smooth I I' f :=
+  f.Prop
+#align cont_mdiff_map.smooth ContMdiffMap.smooth
 
 instance : Coe C^n⟮I, M; I', M'⟯ C(M, M') :=
-  ⟨fun f => ⟨f, f.contMdiff_toFun.Continuous⟩⟩
+  ⟨fun f => ⟨f, f.ContMdiff.Continuous⟩⟩
 
-attribute [to_additive_ignore_args 21] ContMdiffMap ContMdiffMap.hasCoeToFun
+attribute [to_additive_ignore_args 21] ContMdiffMap ContMdiffMap.funLike
   ContMdiffMap.ContinuousMap.hasCoe
 
 variable {f g : C^n⟮I, M; I', M'⟯}
 
 @[simp]
-theorem coeFn_mk (f : M → M') (hf : ContMdiff I I' n f) : (mk f hf : M → M') = f :=
+theorem coeFn_mk (f : M → M') (hf : ContMdiff I I' n f) :
+    ((Subtype.mk f hf : C^n⟮I, M; I', M'⟯) : M → M') = f :=
   rfl
 #align cont_mdiff_map.coe_fn_mk ContMdiffMap.coeFn_mk
 
-protected theorem contMdiff (f : C^n⟮I, M; I', M'⟯) : ContMdiff I I' n f :=
-  f.contMdiff_toFun
-#align cont_mdiff_map.cont_mdiff ContMdiffMap.contMdiff
-
-protected theorem smooth (f : C^∞⟮I, M; I', M'⟯) : Smooth I I' f :=
-  f.contMdiff_toFun
-#align cont_mdiff_map.smooth ContMdiffMap.smooth
-
 theorem coe_inj ⦃f g : C^n⟮I, M; I', M'⟯⦄ (h : (f : M → M') = g) : f = g := by
   cases f <;> cases g <;> cases h <;> rfl
 #align cont_mdiff_map.coe_inj ContMdiffMap.coe_inj
@@ -101,8 +103,8 @@ def id : C^n⟮I, M; I, M⟯ :=
 /-- The composition of smooth maps, as a smooth map. -/
 def comp (f : C^n⟮I', M'; I'', M''⟯) (g : C^n⟮I, M; I', M'⟯) : C^n⟮I, M; I'', M''⟯
     where
-  toFun a := f (g a)
-  contMdiff_toFun := f.contMdiff_toFun.comp g.contMdiff_toFun
+  val a := f (g a)
+  property := f.ContMdiff.comp g.ContMdiff
 #align cont_mdiff_map.comp ContMdiffMap.comp
 
 @[simp]

mathlib commit https://github.com/leanprover-community/mathlib/commit/9fb8964792b4237dac6200193a0d533f1b3f7423

@@ -44,10 +44,8 @@ def SmoothMap :=
   ContMdiffMap I I' M M' ⊤
 #align smooth_map SmoothMap
 
--- mathport name: cont_mdiff_map
 scoped[Manifold] notation "C^" n "⟮" I ", " M "; " I' ", " M' "⟯" => ContMdiffMap I I' M M' n
 
--- mathport name: cont_mdiff_map.self
 scoped[Manifold]
   notation "C^" n "⟮" I ", " M "; " k "⟯" => ContMdiffMap I (modelWithCornersSelf k k) M k n
 

mathlib commit https://github.com/leanprover-community/mathlib/commit/31c24aa72e7b3e5ed97a8412470e904f82b81004

@@ -4,11 +4,11 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Nicolò Cavalleri
 
 ! This file was ported from Lean 3 source module geometry.manifold.cont_mdiff_map
-! leanprover-community/mathlib commit be2c24f56783935652cefffb4bfca7e4b25d167e
+! leanprover-community/mathlib commit e354e865255654389cc46e6032160238df2e0f40
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
-import Mathbin.Geometry.Manifold.ContMdiffMfderiv
+import Mathbin.Geometry.Manifold.ContMdiff
 import Mathbin.Topology.ContinuousFunction.Basic
 
 /-!
@@ -25,7 +25,11 @@ variable {𝕜 : Type _} [NontriviallyNormedField 𝕜] {E : Type _} [NormedAddC
   (I' : ModelWithCorners 𝕜 E' H') (M : Type _) [TopologicalSpace M] [ChartedSpace H M] (M' : Type _)
   [TopologicalSpace M'] [ChartedSpace H' M'] {E'' : Type _} [NormedAddCommGroup E'']
   [NormedSpace 𝕜 E''] {H'' : Type _} [TopologicalSpace H''] {I'' : ModelWithCorners 𝕜 E'' H''}
-  {M'' : Type _} [TopologicalSpace M''] [ChartedSpace H'' M''] (n : ℕ∞)
+  {M'' : Type _} [TopologicalSpace M''] [ChartedSpace H'' M'']
+  -- declare a manifold `N` over the pair `(F, G)`.
+  {F : Type _}
+  [NormedAddCommGroup F] [NormedSpace 𝕜 F] {G : Type _} [TopologicalSpace G]
+  {J : ModelWithCorners 𝕜 F G} {N : Type _} [TopologicalSpace N] [ChartedSpace G N] (n : ℕ∞)
 
 /-- Bundled `n` times continuously differentiable maps. -/
 @[protect_proj]
@@ -77,18 +81,6 @@ protected theorem smooth (f : C^∞⟮I, M; I', M'⟯) : Smooth I I' f :=
   f.contMdiff_toFun
 #align cont_mdiff_map.smooth ContMdiffMap.smooth
 
-protected theorem mdifferentiable' (f : C^n⟮I, M; I', M'⟯) (hn : 1 ≤ n) : Mdifferentiable I I' f :=
-  f.ContMdiff.Mdifferentiable hn
-#align cont_mdiff_map.mdifferentiable' ContMdiffMap.mdifferentiable'
-
-protected theorem mdifferentiable (f : C^∞⟮I, M; I', M'⟯) : Mdifferentiable I I' f :=
-  f.ContMdiff.Mdifferentiable le_top
-#align cont_mdiff_map.mdifferentiable ContMdiffMap.mdifferentiable
-
-protected theorem mdifferentiableAt (f : C^∞⟮I, M; I', M'⟯) {x} : MdifferentiableAt I I' f x :=
-  f.Mdifferentiable x
-#align cont_mdiff_map.mdifferentiable_at ContMdiffMap.mdifferentiableAt
-
 theorem coe_inj ⦃f g : C^n⟮I, M; I', M'⟯⦄ (h : (f : M → M') = g) : f = g := by
   cases f <;> cases g <;> cases h <;> rfl
 #align cont_mdiff_map.coe_inj ContMdiffMap.coe_inj
@@ -129,6 +121,21 @@ def const (y : M') : C^n⟮I, M; I', M'⟯ :=
   ⟨fun x => y, contMdiff_const⟩
 #align cont_mdiff_map.const ContMdiffMap.const
 
+/-- The first projection of a product, as a smooth map. -/
+def fst : C^n⟮I.Prod I', M × M'; I, M⟯ :=
+  ⟨Prod.fst, contMdiff_fst⟩
+#align cont_mdiff_map.fst ContMdiffMap.fst
+
+/-- The second projection of a product, as a smooth map. -/
+def snd : C^n⟮I.Prod I', M × M'; I', M'⟯ :=
+  ⟨Prod.snd, contMdiff_snd⟩
+#align cont_mdiff_map.snd ContMdiffMap.snd
+
+/-- Given two smooth maps `f` and `g`, this is the smooth map `x ↦ (f x, g x)`. -/
+def prodMk (f : C^n⟮J, N; I, M⟯) (g : C^n⟮J, N; I', M'⟯) : C^n⟮J, N; I.Prod I', M × M'⟯ :=
+  ⟨fun x => (f x, g x), f.2.prod_mk g.2⟩
+#align cont_mdiff_map.prod_mk ContMdiffMap.prodMk
+
 end ContMdiffMap
 
 instance ContinuousLinearMap.hasCoeToContMdiffMap :

mathlib commit https://github.com/leanprover-community/mathlib/commit/cca40788df1b8755d5baf17ab2f27dacc2e17acb

@@ -59,8 +59,8 @@ instance : CoeFun C^n⟮I, M; I', M'⟯ fun _ => M → M' :=
 instance : Coe C^n⟮I, M; I', M'⟯ C(M, M') :=
   ⟨fun f => ⟨f, f.contMdiff_toFun.Continuous⟩⟩
 
-attribute [to_additive_ignore_args 21]
-  ContMdiffMap ContMdiffMap.hasCoeToFun ContMdiffMap.ContinuousMap.hasCoe
+attribute [to_additive_ignore_args 21] ContMdiffMap ContMdiffMap.hasCoeToFun
+  ContMdiffMap.ContinuousMap.hasCoe
 
 variable {f g : C^n⟮I, M; I', M'⟯}
 

mathlib commit https://github.com/leanprover-community/mathlib/commit/917c3c072e487b3cccdbfeff17e75b40e45f66cb

@@ -47,7 +47,7 @@ scoped[Manifold] notation "C^" n "⟮" I ", " M "; " I' ", " M' "⟯" => ContMdi
 scoped[Manifold]
   notation "C^" n "⟮" I ", " M "; " k "⟯" => ContMdiffMap I (modelWithCornersSelf k k) M k n
 
-open Manifold
+open scoped Manifold
 
 namespace ContMdiffMap
 

mathlib commit https://github.com/leanprover-community/mathlib/commit/38f16f960f5006c6c0c2bac7b0aba5273188f4e5

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Nicolò Cavalleri
 
 ! This file was ported from Lean 3 source module geometry.manifold.cont_mdiff_map
-! leanprover-community/mathlib commit 2b69cd5eca1cc3c5f4a754abe7dab71111959a9d
+! leanprover-community/mathlib commit be2c24f56783935652cefffb4bfca7e4b25d167e
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -97,6 +97,12 @@ theorem coe_inj ⦃f g : C^n⟮I, M; I', M'⟯⦄ (h : (f : M → M') = g) : f =
 theorem ext (h : ∀ x, f x = g x) : f = g := by cases f <;> cases g <;> congr <;> exact funext h
 #align cont_mdiff_map.ext ContMdiffMap.ext
 
+instance : ContinuousMapClass C^n⟮I, M; I', M'⟯ M M'
+    where
+  coe f := ⇑f
+  coe_injective' := coe_inj
+  map_continuous f := f.ContMdiff.Continuous
+
 /-- The identity as a smooth map. -/
 def id : C^n⟮I, M; I, M⟯ :=
   ⟨id, contMdiff_id⟩

mathlib commit https://github.com/leanprover-community/mathlib/commit/bd9851ca476957ea4549eb19b40e7b5ade9428cc

Homogenises porting notes via capitalisation and addition of whitespace.

It makes the following changes:

• converts "--porting note" into "-- Porting note";
• converts "porting note" into "Porting note".

@@ -63,7 +63,7 @@ protected theorem smooth (f : C^∞⟮I, M; I', M'⟯) : Smooth I I' f :=
   f.prop
 #align cont_mdiff_map.smooth ContMDiffMap.smooth
 
--- porting note: use generic instance instead
+-- Porting note: use generic instance instead
 -- instance : Coe C^n⟮I, M; I', M'⟯ C(M, M') :=
 --   ⟨fun f => ⟨f, f.contMDiff.continuous⟩⟩
 

Make all the notations that unambiguously should inherit the docstring of their definition actually inherit it.

Also write a few docstrings by hand. I only wrote the ones I was competent to write and which I was sure of. Some docstrings come from mathlib3 as they were lost during the early port.

This PR is only intended as a first pass There are many more docstrings to add.

@@ -37,8 +37,10 @@ def SmoothMap :=
   ContMDiffMap I I' M M' ⊤
 #align smooth_map SmoothMap
 
+@[inherit_doc]
 scoped[Manifold] notation "C^" n "⟮" I ", " M "; " I' ", " M' "⟯" => ContMDiffMap I I' M M' n
 
+@[inherit_doc]
 scoped[Manifold]
   notation "C^" n "⟮" I ", " M "; " k "⟯" => ContMDiffMap I (modelWithCornersSelf k k) M k n
 

This follows up from #9785, which renamed FunLike to DFunLike, by introducing a new abbreviation FunLike F α β := DFunLike F α (fun _ => β), to make the non-dependent use of FunLike easier.

I searched for the pattern DFunLike.*fun and DFunLike.*λ in all files to replace expressions of the form DFunLike F α (fun _ => β) with FunLike F α β. I did this everywhere except for extends clauses for two reasons: it would conflict with #8386, and more importantly extends must directly refer to a structure with no unfolding of defs or abbrevs.

@@ -48,10 +48,10 @@ namespace ContMDiffMap
 
 variable {I} {I'} {M} {M'} {n}
 
-instance instDFunLike : DFunLike C^n⟮I, M; I', M'⟯ M fun _ => M' where
+instance instFunLike : FunLike C^n⟮I, M; I', M'⟯ M M' where
   coe := Subtype.val
   coe_injective' := Subtype.coe_injective
-#align cont_mdiff_map.fun_like ContMDiffMap.instDFunLike
+#align cont_mdiff_map.fun_like ContMDiffMap.instFunLike
 
 protected theorem contMDiff (f : C^n⟮I, M; I', M'⟯) : ContMDiff I I' n f :=
   f.prop
@@ -65,7 +65,7 @@ protected theorem smooth (f : C^∞⟮I, M; I', M'⟯) : Smooth I I' f :=
 -- instance : Coe C^n⟮I, M; I', M'⟯ C(M, M') :=
 --   ⟨fun f => ⟨f, f.contMDiff.continuous⟩⟩
 
-attribute [to_additive_ignore_args 21] ContMDiffMap ContMDiffMap.instDFunLike
+attribute [to_additive_ignore_args 21] ContMDiffMap ContMDiffMap.instFunLike
 
 variable {f g : C^n⟮I, M; I', M'⟯}
 

This prepares for the introduction of a non-dependent synonym of FunLike, which helps a lot with keeping #8386 readable.

This is entirely search-and-replace in 680197f combined with manual fixes in 4145626, e900597 and b8428f8. The commands that generated this change:

sed -i 's/\bFunLike\b/DFunLike/g' {Archive,Counterexamples,Mathlib,test}/**/*.lean
sed -i 's/\btoFunLike\b/toDFunLike/g' {Archive,Counterexamples,Mathlib,test}/**/*.lean
sed -i 's/import Mathlib.Data.DFunLike/import Mathlib.Data.FunLike/g' {Archive,Counterexamples,Mathlib,test}/**/*.lean
sed -i 's/\bHom_FunLike\b/Hom_DFunLike/g' {Archive,Counterexamples,Mathlib,test}/**/*.lean     
sed -i 's/\binstFunLike\b/instDFunLike/g' {Archive,Counterexamples,Mathlib,test}/**/*.lean
sed -i 's/\bfunLike\b/instDFunLike/g' {Archive,Counterexamples,Mathlib,test}/**/*.lean
sed -i 's/\btoo many metavariables to apply `fun_like.has_coe_to_fun`/too many metavariables to apply `DFunLike.hasCoeToFun`/g' {Archive,Counterexamples,Mathlib,test}/**/*.lean

Co-authored-by: Anne Baanen <Vierkantor@users.noreply.github.com>

@@ -48,10 +48,10 @@ namespace ContMDiffMap
 
 variable {I} {I'} {M} {M'} {n}
 
-instance funLike : FunLike C^n⟮I, M; I', M'⟯ M fun _ => M' where
+instance instDFunLike : DFunLike C^n⟮I, M; I', M'⟯ M fun _ => M' where
   coe := Subtype.val
   coe_injective' := Subtype.coe_injective
-#align cont_mdiff_map.fun_like ContMDiffMap.funLike
+#align cont_mdiff_map.fun_like ContMDiffMap.instDFunLike
 
 protected theorem contMDiff (f : C^n⟮I, M; I', M'⟯) : ContMDiff I I' n f :=
   f.prop
@@ -65,22 +65,22 @@ protected theorem smooth (f : C^∞⟮I, M; I', M'⟯) : Smooth I I' f :=
 -- instance : Coe C^n⟮I, M; I', M'⟯ C(M, M') :=
 --   ⟨fun f => ⟨f, f.contMDiff.continuous⟩⟩
 
-attribute [to_additive_ignore_args 21] ContMDiffMap ContMDiffMap.funLike
+attribute [to_additive_ignore_args 21] ContMDiffMap ContMDiffMap.instDFunLike
 
 variable {f g : C^n⟮I, M; I', M'⟯}
 
 @[simp]
 theorem coeFn_mk (f : M → M') (hf : ContMDiff I I' n f) :
-    FunLike.coe (F := C^n⟮I, M; I', M'⟯) ⟨f, hf⟩ = f :=
+    DFunLike.coe (F := C^n⟮I, M; I', M'⟯) ⟨f, hf⟩ = f :=
   rfl
 #align cont_mdiff_map.coe_fn_mk ContMDiffMap.coeFn_mk
 
 theorem coe_injective ⦃f g : C^n⟮I, M; I', M'⟯⦄ (h : (f : M → M') = g) : f = g :=
-  FunLike.ext' h
+  DFunLike.ext' h
 #align cont_mdiff_map.coe_inj ContMDiffMap.coe_injective
 
 @[ext]
-theorem ext (h : ∀ x, f x = g x) : f = g := FunLike.ext _ _ h
+theorem ext (h : ∀ x, f x = g x) : f = g := DFunLike.ext _ _ h
 #align cont_mdiff_map.ext ContMDiffMap.ext
 
 instance : ContinuousMapClass C^n⟮I, M; I', M'⟯ M M' where

At about 2200 lines, this is currently the longest file in the Geometry/Manifolds.

(It also moves the slowly compiling proof of ContMDiffWithinAt.cle_arrowCongr out of a common recompilation path.)

@@ -3,8 +3,7 @@ Copyright © 2020 Nicolò Cavalleri. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Nicolò Cavalleri
 -/
-import Mathlib.Geometry.Manifold.ContMDiff
-import Mathlib.Topology.ContinuousFunction.Basic
+import Mathlib.Geometry.Manifold.ContMDiff.NormedSpace
 
 #align_import geometry.manifold.cont_mdiff_map from "leanprover-community/mathlib"@"86c29aefdba50b3f33e86e52e3b2f51a0d8f0282"
 

We remove all possible occurences of Type _ and Sort _ in favor of Type* and Sort*.

This has nice performance benefits.

@@ -15,17 +15,17 @@ In this file we define the type `ContMDiffMap` of `n` times continuously differe
 bundled maps.
 -/
 
-variable {𝕜 : Type _} [NontriviallyNormedField 𝕜] {E : Type _} [NormedAddCommGroup E]
-  [NormedSpace 𝕜 E] {E' : Type _} [NormedAddCommGroup E'] [NormedSpace 𝕜 E'] {H : Type _}
-  [TopologicalSpace H] {H' : Type _} [TopologicalSpace H'] (I : ModelWithCorners 𝕜 E H)
-  (I' : ModelWithCorners 𝕜 E' H') (M : Type _) [TopologicalSpace M] [ChartedSpace H M] (M' : Type _)
-  [TopologicalSpace M'] [ChartedSpace H' M'] {E'' : Type _} [NormedAddCommGroup E'']
-  [NormedSpace 𝕜 E''] {H'' : Type _} [TopologicalSpace H''] {I'' : ModelWithCorners 𝕜 E'' H''}
-  {M'' : Type _} [TopologicalSpace M''] [ChartedSpace H'' M'']
+variable {𝕜 : Type*} [NontriviallyNormedField 𝕜] {E : Type*} [NormedAddCommGroup E]
+  [NormedSpace 𝕜 E] {E' : Type*} [NormedAddCommGroup E'] [NormedSpace 𝕜 E'] {H : Type*}
+  [TopologicalSpace H] {H' : Type*} [TopologicalSpace H'] (I : ModelWithCorners 𝕜 E H)
+  (I' : ModelWithCorners 𝕜 E' H') (M : Type*) [TopologicalSpace M] [ChartedSpace H M] (M' : Type*)
+  [TopologicalSpace M'] [ChartedSpace H' M'] {E'' : Type*} [NormedAddCommGroup E'']
+  [NormedSpace 𝕜 E''] {H'' : Type*} [TopologicalSpace H''] {I'' : ModelWithCorners 𝕜 E'' H''}
+  {M'' : Type*} [TopologicalSpace M''] [ChartedSpace H'' M'']
   -- declare a manifold `N` over the pair `(F, G)`.
-  {F : Type _}
-  [NormedAddCommGroup F] [NormedSpace 𝕜 F] {G : Type _} [TopologicalSpace G]
-  {J : ModelWithCorners 𝕜 F G} {N : Type _} [TopologicalSpace N] [ChartedSpace G N] (n : ℕ∞)
+  {F : Type*}
+  [NormedAddCommGroup F] [NormedSpace 𝕜 F] {G : Type*} [TopologicalSpace G]
+  {J : ModelWithCorners 𝕜 F G} {N : Type*} [TopologicalSpace N] [ChartedSpace G N] (n : ℕ∞)
 
 /-- Bundled `n` times continuously differentiable maps. -/
 def ContMDiffMap :=

• depends on: #5966

Co-authored-by: Eric Wieser <wieser.eric@gmail.com> Co-authored-by: Scott Morrison <scott.morrison@gmail.com>

@@ -2,15 +2,12 @@
 Copyright © 2020 Nicolò Cavalleri. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Nicolò Cavalleri
-
-! This file was ported from Lean 3 source module geometry.manifold.cont_mdiff_map
-! leanprover-community/mathlib commit 86c29aefdba50b3f33e86e52e3b2f51a0d8f0282
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Geometry.Manifold.ContMDiff
 import Mathlib.Topology.ContinuousFunction.Basic
 
+#align_import geometry.manifold.cont_mdiff_map from "leanprover-community/mathlib"@"86c29aefdba50b3f33e86e52e3b2f51a0d8f0282"
+
 /-!
 # Smooth bundled map
 

@@ -14,7 +14,7 @@ import Mathlib.Topology.ContinuousFunction.Basic
 /-!
 # Smooth bundled map
 
-In this file we define the type `cont_mdiff_map` of `n` times continuously differentiable
+In this file we define the type `ContMDiffMap` of `n` times continuously differentiable
 bundled maps.
 -/
 

Co-authored-by: Scott Morrison <scott.morrison@gmail.com> Co-authored-by: Jeremy Tan Jie Rui <reddeloostw@gmail.com>

@@ -69,8 +69,7 @@ protected theorem smooth (f : C^∞⟮I, M; I', M'⟯) : Smooth I I' f :=
 -- instance : Coe C^n⟮I, M; I', M'⟯ C(M, M') :=
 --   ⟨fun f => ⟨f, f.contMDiff.continuous⟩⟩
 
--- attribute [to_additive_ignore_args 21] ContMDiffMap ContMDiffMap.funLike
---   ContMDiffMap.ContinuousMap.hasCoe
+attribute [to_additive_ignore_args 21] ContMDiffMap ContMDiffMap.funLike
 
 variable {f g : C^n⟮I, M; I', M'⟯}