algebra.order.monoid.order_dual | Mathlib porting status

Changes since the initial port

The following section lists changes to this file in mathlib3 and mathlib4 that occured after the initial port. Most recent changes are shown first. Hovering over a commit will show all commits associated with the same mathlib3 commit.

Changes in mathlib3

2258b40d

(last sync)

70d50ecf

(first ported)

Changes in mathlib3port

mathlib3

mathlib3port

448144f7

bump to nightly-2023-09-24-06

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

5655435f

Diff

@@ -3,8 +3,8 @@ Copyright (c) 2016 Jeremy Avigad. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Jeremy Avigad, Leonardo de Moura, Mario Carneiro, Johannes Hölzl
 -/
-import Mathbin.Algebra.Group.OrderSynonym
-import Mathbin.Algebra.Order.Monoid.Cancel.Defs
+import Algebra.Group.OrderSynonym
+import Algebra.Order.Monoid.Cancel.Defs
 
 #align_import algebra.order.monoid.order_dual from "leanprover-community/mathlib"@"448144f7ae193a8990cb7473c9e9a01990f64ac7"

448144f7

bump to nightly-2023-08-17-09

mathlib commit https://github.com/leanprover-community/mathlib/commit/32a7e535287f9c73f2e4d2aef306a39190f0b504

60285dcc

Diff

@@ -105,7 +105,7 @@ instance [OrderedCommMonoid α] : OrderedCommMonoid αᵒᵈ :=
 @[to_additive OrderDual.OrderedCancelAddCommMonoid.to_contravariantClass]
 instance OrderedCancelCommMonoid.to_contravariantClass [OrderedCancelCommMonoid α] :
     ContravariantClass αᵒᵈ αᵒᵈ Mul.mul LE.le
-    where elim a b c := OrderedCancelCommMonoid.le_of_mul_le_mul_left a c b
+    where elim a b c := OrderedCancelCommMonoid.le_of_hMul_le_hMul_left a c b
 #align order_dual.ordered_cancel_comm_monoid.to_contravariant_class OrderDual.OrderedCancelCommMonoid.to_contravariantClass
 #align ordered_cancel_add_comm_monoid.to_contravariant_class OrderDual.OrderedCancelAddCommMonoid.to_contravariantClass
 -/

448144f7

bump to nightly-2023-08-11-09

mathlib commit https://github.com/leanprover-community/mathlib/commit/32a7e535287f9c73f2e4d2aef306a39190f0b504

0d5a6584

Diff

@@ -117,11 +117,11 @@ instance [OrderedCancelCommMonoid α] : OrderedCancelCommMonoid αᵒᵈ :=
 
 @[to_additive]
 instance [LinearOrderedCancelCommMonoid α] : LinearOrderedCancelCommMonoid αᵒᵈ :=
-  { OrderDual.linearOrder α, OrderDual.orderedCancelCommMonoid with }
+  { OrderDual.instLinearOrder α, OrderDual.orderedCancelCommMonoid with }
 
 @[to_additive]
 instance [LinearOrderedCommMonoid α] : LinearOrderedCommMonoid αᵒᵈ :=
-  { OrderDual.linearOrder α, OrderDual.orderedCommMonoid with }
+  { OrderDual.instLinearOrder α, OrderDual.orderedCommMonoid with }
 
 end OrderDual

448144f7

bump to nightly-2023-07-20-09

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

9c56d0dd

Diff

@@ -2,15 +2,12 @@
 Copyright (c) 2016 Jeremy Avigad. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Jeremy Avigad, Leonardo de Moura, Mario Carneiro, Johannes Hölzl
-
-! This file was ported from Lean 3 source module algebra.order.monoid.order_dual
-! leanprover-community/mathlib commit 448144f7ae193a8990cb7473c9e9a01990f64ac7
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Algebra.Group.OrderSynonym
 import Mathbin.Algebra.Order.Monoid.Cancel.Defs
 
+#align_import algebra.order.monoid.order_dual from "leanprover-community/mathlib"@"448144f7ae193a8990cb7473c9e9a01990f64ac7"
+
 /-! # Ordered monoid structures on the order dual.
 
 > THIS FILE IS SYNCHRONIZED WITH MATHLIB4.

448144f7

bump to nightly-2023-06-13-21

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

829520ac

Diff

@@ -104,12 +104,14 @@ instance [OrderedCommMonoid α] : OrderedCommMonoid αᵒᵈ :=
   { OrderDual.partialOrder α, OrderDual.commMonoid with
     mul_le_mul_left := fun a b h c => mul_le_mul_left' h c }
 
+#print OrderDual.OrderedCancelCommMonoid.to_contravariantClass /-
 @[to_additive OrderDual.OrderedCancelAddCommMonoid.to_contravariantClass]
 instance OrderedCancelCommMonoid.to_contravariantClass [OrderedCancelCommMonoid α] :
     ContravariantClass αᵒᵈ αᵒᵈ Mul.mul LE.le
     where elim a b c := OrderedCancelCommMonoid.le_of_mul_le_mul_left a c b
 #align order_dual.ordered_cancel_comm_monoid.to_contravariant_class OrderDual.OrderedCancelCommMonoid.to_contravariantClass
 #align ordered_cancel_add_comm_monoid.to_contravariant_class OrderDual.OrderedCancelAddCommMonoid.to_contravariantClass
+-/
 
 @[to_additive]
 instance [OrderedCancelCommMonoid α] : OrderedCancelCommMonoid αᵒᵈ :=

448144f7

bump to nightly-2023-05-28-06

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

ba5d8b97

Diff

@@ -104,12 +104,6 @@ instance [OrderedCommMonoid α] : OrderedCommMonoid αᵒᵈ :=
   { OrderDual.partialOrder α, OrderDual.commMonoid with
     mul_le_mul_left := fun a b h c => mul_le_mul_left' h c }
 
-/- warning: order_dual.ordered_cancel_comm_monoid.to_contravariant_class -> OrderDual.OrderedCancelCommMonoid.to_contravariantClass is a dubious translation:
-lean 3 declaration is
-  forall {α : Type.{u1}} [_inst_1 : OrderedCancelCommMonoid.{u1} α], ContravariantClass.{u1, u1} (OrderDual.{u1} α) (OrderDual.{u1} α) (HMul.hMul.{u1, u1, u1} (OrderDual.{u1} α) (OrderDual.{u1} α) (OrderDual.{u1} α) (instHMul.{u1} (OrderDual.{u1} α) (OrderDual.hasMul.{u1} α (MulOneClass.toHasMul.{u1} α (Monoid.toMulOneClass.{u1} α (RightCancelMonoid.toMonoid.{u1} α (CancelMonoid.toRightCancelMonoid.{u1} α (CancelCommMonoid.toCancelMonoid.{u1} α (OrderedCancelCommMonoid.toCancelCommMonoid.{u1} α _inst_1))))))))) (LE.le.{u1} (OrderDual.{u1} α) (OrderDual.hasLe.{u1} α (Preorder.toHasLe.{u1} α (PartialOrder.toPreorder.{u1} α (OrderedCancelCommMonoid.toPartialOrder.{u1} α _inst_1)))))
-but is expected to have type
-  forall {α : Type.{u1}} [_inst_1 : OrderedCancelCommMonoid.{u1} α], ContravariantClass.{u1, u1} (OrderDual.{u1} α) (OrderDual.{u1} α) (Mul.mul.{u1} (OrderDual.{u1} α) (instMulOrderDual.{u1} α (MulOneClass.toMul.{u1} α (Monoid.toMulOneClass.{u1} α (RightCancelMonoid.toMonoid.{u1} α (CancelMonoid.toRightCancelMonoid.{u1} α (CancelCommMonoid.toCancelMonoid.{u1} α (OrderedCancelCommMonoid.toCancelCommMonoid.{u1} α _inst_1)))))))) (LE.le.{u1} (OrderDual.{u1} α) (OrderDual.instLEOrderDual.{u1} α (Preorder.toLE.{u1} α (PartialOrder.toPreorder.{u1} α (OrderedCancelCommMonoid.toPartialOrder.{u1} α _inst_1)))))
-Case conversion may be inaccurate. Consider using '#align order_dual.ordered_cancel_comm_monoid.to_contravariant_class OrderDual.OrderedCancelCommMonoid.to_contravariantClassₓ'. -/
 @[to_additive OrderDual.OrderedCancelAddCommMonoid.to_contravariantClass]
 instance OrderedCancelCommMonoid.to_contravariantClass [OrderedCancelCommMonoid α] :
     ContravariantClass αᵒᵈ αᵒᵈ Mul.mul LE.le

448144f7

bump to nightly-2023-05-16-16

mathlib commit https://github.com/leanprover-community/mathlib/commit/0b9eaaa7686280fad8cce467f5c3c57ee6ce77f8

9cb92e8c

Diff

@@ -106,7 +106,7 @@ instance [OrderedCommMonoid α] : OrderedCommMonoid αᵒᵈ :=
 
 /- warning: order_dual.ordered_cancel_comm_monoid.to_contravariant_class -> OrderDual.OrderedCancelCommMonoid.to_contravariantClass is a dubious translation:
 lean 3 declaration is
-  forall {α : Type.{u1}} [_inst_1 : OrderedCancelCommMonoid.{u1} α], ContravariantClass.{u1, u1} (OrderDual.{u1} α) (OrderDual.{u1} α) (HMul.hMul.{u1, u1, u1} (OrderDual.{u1} α) (OrderDual.{u1} α) (OrderDual.{u1} α) (instHMul.{u1} (OrderDual.{u1} α) (OrderDual.hasMul.{u1} α (MulOneClass.toHasMul.{u1} α (Monoid.toMulOneClass.{u1} α (RightCancelMonoid.toMonoid.{u1} α (CancelMonoid.toRightCancelMonoid.{u1} α (CancelCommMonoid.toCancelMonoid.{u1} α (OrderedCancelCommMonoid.toCancelCommMonoid.{u1} α _inst_1))))))))) (LE.le.{u1} (OrderDual.{u1} α) (OrderDual.hasLe.{u1} α (Preorder.toLE.{u1} α (PartialOrder.toPreorder.{u1} α (OrderedCancelCommMonoid.toPartialOrder.{u1} α _inst_1)))))
+  forall {α : Type.{u1}} [_inst_1 : OrderedCancelCommMonoid.{u1} α], ContravariantClass.{u1, u1} (OrderDual.{u1} α) (OrderDual.{u1} α) (HMul.hMul.{u1, u1, u1} (OrderDual.{u1} α) (OrderDual.{u1} α) (OrderDual.{u1} α) (instHMul.{u1} (OrderDual.{u1} α) (OrderDual.hasMul.{u1} α (MulOneClass.toHasMul.{u1} α (Monoid.toMulOneClass.{u1} α (RightCancelMonoid.toMonoid.{u1} α (CancelMonoid.toRightCancelMonoid.{u1} α (CancelCommMonoid.toCancelMonoid.{u1} α (OrderedCancelCommMonoid.toCancelCommMonoid.{u1} α _inst_1))))))))) (LE.le.{u1} (OrderDual.{u1} α) (OrderDual.hasLe.{u1} α (Preorder.toHasLe.{u1} α (PartialOrder.toPreorder.{u1} α (OrderedCancelCommMonoid.toPartialOrder.{u1} α _inst_1)))))
 but is expected to have type
   forall {α : Type.{u1}} [_inst_1 : OrderedCancelCommMonoid.{u1} α], ContravariantClass.{u1, u1} (OrderDual.{u1} α) (OrderDual.{u1} α) (Mul.mul.{u1} (OrderDual.{u1} α) (instMulOrderDual.{u1} α (MulOneClass.toMul.{u1} α (Monoid.toMulOneClass.{u1} α (RightCancelMonoid.toMonoid.{u1} α (CancelMonoid.toRightCancelMonoid.{u1} α (CancelCommMonoid.toCancelMonoid.{u1} α (OrderedCancelCommMonoid.toCancelCommMonoid.{u1} α _inst_1)))))))) (LE.le.{u1} (OrderDual.{u1} α) (OrderDual.instLEOrderDual.{u1} α (Preorder.toLE.{u1} α (PartialOrder.toPreorder.{u1} α (OrderedCancelCommMonoid.toPartialOrder.{u1} α _inst_1)))))
 Case conversion may be inaccurate. Consider using '#align order_dual.ordered_cancel_comm_monoid.to_contravariant_class OrderDual.OrderedCancelCommMonoid.to_contravariantClassₓ'. -/

448144f7

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

2258b40d

chore (Order.Defs): reorder parents to simplify instances and avoid non-reducible defeq checks (#9034)

Currently, OrderDual.orderedCommMonoid unifies with LinearOrderedAddCommMonoid.toOrderedAddCommMonoid at instance transparency because of an extra eta expansion in its definition. The provided instances can be synthesized by Lean and deleted. This removes the extraneous eta expansion but causes defeq to fail at instance transparency. To fix this, we reorder the parents of LinearOrderedAddCommMonoid. We also do this for the non-Add version.

b92d7422

Diff

@@ -81,8 +81,7 @@ instance covariantClass_swap_mul_lt [LT α] [Mul α]
 
 @[to_additive]
 instance orderedCommMonoid [OrderedCommMonoid α] : OrderedCommMonoid αᵒᵈ :=
-  { OrderDual.instPartialOrder α, OrderDual.instCommMonoid with
-    mul_le_mul_left := fun _ _ h c => mul_le_mul_left' h c }
+  { mul_le_mul_left := fun _ _ h c => mul_le_mul_left' h c }
 #align order_dual.ordered_comm_monoid OrderDual.orderedCommMonoid
 #align order_dual.ordered_add_comm_monoid OrderDual.orderedAddCommMonoid
 
@@ -99,8 +98,7 @@ instance OrderedCancelCommMonoid.to_contravariantClass [OrderedCancelCommMonoid
 
 @[to_additive]
 instance orderedCancelCommMonoid [OrderedCancelCommMonoid α] : OrderedCancelCommMonoid αᵒᵈ :=
-  { OrderDual.orderedCommMonoid, @OrderDual.instCancelCommMonoid α _ with
-    le_of_mul_le_mul_left := fun _ _ _ : α => le_of_mul_le_mul_left' }
+  { le_of_mul_le_mul_left := fun _ _ _ : α => le_of_mul_le_mul_left' }
 
 @[to_additive]
 instance linearOrderedCancelCommMonoid [LinearOrderedCancelCommMonoid α] :

2258b40d

fix: remove references to non-heterogenous operators in theorem statements (#8086)

Some of these are likely porting errors. Statements should always be about the heterogenous versions because these are the ones with notation.

For places where we are abusing defeq, this debuts the trick of using (by exact a : B) = (by exact a1) + (by exact b2) to ensure the = and + are typed as B instead of A.

79da87bb

Diff

@@ -88,7 +88,7 @@ instance orderedCommMonoid [OrderedCommMonoid α] : OrderedCommMonoid αᵒᵈ :
 
 @[to_additive OrderDual.OrderedCancelAddCommMonoid.to_contravariantClass]
 instance OrderedCancelCommMonoid.to_contravariantClass [OrderedCancelCommMonoid α] :
-    ContravariantClass αᵒᵈ αᵒᵈ Mul.mul LE.le where
+    ContravariantClass αᵒᵈ αᵒᵈ HMul.hMul LE.le where
     -- Porting note: We need to specify the implicit arguments here because of
     -- https://github.com/leanprover/lean4/issues/1892
     -- We should be able to remove this after nightly-2022-11-30 arrives.

2258b40d

chore: Merge back ordered cancellative stuff (#8170)

There really is no reason (mathematically nor import graphically) to have OrderedCancelCommMonoid be defined in a separate file from OrderedCommMonoid.

Also take the opportunity to:

make OrderedCancelCommMonoid extend OrderedCommMonoid
fix capitalisation in instance names
standardise to defining the additive of each structure version first, so that to_additive can be called directly on the multiplicative version
inline at no cost a few auxiliary lemmas

1dfce854

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Jeremy Avigad, Leonardo de Moura, Mario Carneiro, Johannes Hölzl
 -/
 import Mathlib.Algebra.Group.OrderSynonym
-import Mathlib.Algebra.Order.Monoid.Cancel.Defs
+import Mathlib.Algebra.Order.Monoid.Defs
 
 #align_import algebra.order.monoid.order_dual from "leanprover-community/mathlib"@"2258b40dacd2942571c8ce136215350c702dc78f"

2258b40d

chore: tidy various files (#7035)

d04897a6

Diff

@@ -81,7 +81,7 @@ instance covariantClass_swap_mul_lt [LT α] [Mul α]
 
 @[to_additive]
 instance orderedCommMonoid [OrderedCommMonoid α] : OrderedCommMonoid αᵒᵈ :=
-  { OrderDual.instPartialOrder α, instCommMonoidOrderDual with
+  { OrderDual.instPartialOrder α, OrderDual.instCommMonoid with
     mul_le_mul_left := fun _ _ h c => mul_le_mul_left' h c }
 #align order_dual.ordered_comm_monoid OrderDual.orderedCommMonoid
 #align order_dual.ordered_add_comm_monoid OrderDual.orderedAddCommMonoid
@@ -99,7 +99,7 @@ instance OrderedCancelCommMonoid.to_contravariantClass [OrderedCancelCommMonoid
 
 @[to_additive]
 instance orderedCancelCommMonoid [OrderedCancelCommMonoid α] : OrderedCancelCommMonoid αᵒᵈ :=
-  { OrderDual.orderedCommMonoid, @instCancelCommMonoidOrderDual α _ with
+  { OrderDual.orderedCommMonoid, @OrderDual.instCancelCommMonoid α _ with
     le_of_mul_le_mul_left := fun _ _ _ : α => le_of_mul_le_mul_left' }
 
 @[to_additive]

2258b40d

chore: ensure all instances referred to directly have explicit names (#6423)

Per https://github.com/leanprover/lean4/issues/2343, we are going to need to change the automatic generation of instance names, as they become too long.

This PR ensures that everywhere in Mathlib that refers to an instance by name, that name is given explicitly, rather than being automatically generated.

There are four exceptions, which are now commented, with links to https://github.com/leanprover/lean4/issues/2343.

This was implemented by running Mathlib against a modified Lean that appended _ᾰ to all automatically generated names, and fixing everything.

Co-authored-by: Scott Morrison <scott.morrison@gmail.com>

65a35f78

Diff

@@ -81,7 +81,7 @@ instance covariantClass_swap_mul_lt [LT α] [Mul α]
 
 @[to_additive]
 instance orderedCommMonoid [OrderedCommMonoid α] : OrderedCommMonoid αᵒᵈ :=
-  { OrderDual.partialOrder α, instCommMonoidOrderDual with
+  { OrderDual.instPartialOrder α, instCommMonoidOrderDual with
     mul_le_mul_left := fun _ _ h c => mul_le_mul_left' h c }
 #align order_dual.ordered_comm_monoid OrderDual.orderedCommMonoid
 #align order_dual.ordered_add_comm_monoid OrderDual.orderedAddCommMonoid
@@ -105,10 +105,10 @@ instance orderedCancelCommMonoid [OrderedCancelCommMonoid α] : OrderedCancelCom
 @[to_additive]
 instance linearOrderedCancelCommMonoid [LinearOrderedCancelCommMonoid α] :
     LinearOrderedCancelCommMonoid αᵒᵈ :=
-  { OrderDual.linearOrder α, OrderDual.orderedCancelCommMonoid with }
+  { OrderDual.instLinearOrder α, OrderDual.orderedCancelCommMonoid with }
 
 @[to_additive]
 instance linearOrderedCommMonoid [LinearOrderedCommMonoid α] : LinearOrderedCommMonoid αᵒᵈ :=
-  { OrderDual.linearOrder α, OrderDual.orderedCommMonoid with }
+  { OrderDual.instLinearOrder α, OrderDual.orderedCommMonoid with }
 
 end OrderDual

2258b40d

chore: script to replace headers with #align_import statements (#5979)

depends on: #5966

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

89aa3a3b

Diff

@@ -2,15 +2,12 @@
 Copyright (c) 2016 Jeremy Avigad. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Jeremy Avigad, Leonardo de Moura, Mario Carneiro, Johannes Hölzl
-
-! This file was ported from Lean 3 source module algebra.order.monoid.order_dual
-! leanprover-community/mathlib commit 2258b40dacd2942571c8ce136215350c702dc78f
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Algebra.Group.OrderSynonym
 import Mathlib.Algebra.Order.Monoid.Cancel.Defs
 
+#align_import algebra.order.monoid.order_dual from "leanprover-community/mathlib"@"2258b40dacd2942571c8ce136215350c702dc78f"
+
 /-! # Ordered monoid structures on the order dual. -/

2258b40d

chore: fix most phantom #aligns (#1794)

3d3fb046

Diff

@@ -96,7 +96,8 @@ instance OrderedCancelCommMonoid.to_contravariantClass [OrderedCancelCommMonoid
     -- https://github.com/leanprover/lean4/issues/1892
     -- We should be able to remove this after nightly-2022-11-30 arrives.
     elim a b c := @OrderedCancelCommMonoid.le_of_mul_le_mul_left α _ a c b
-#align order_dual.ordered_cancel_add_comm_monoid.to_contravariant_class OrderDual.OrderedCancelAddCommMonoid.to_contravariantClass
+-- Porting note: Lean 3 to_additive name omits first namespace part
+#align ordered_cancel_add_comm_monoid.to_contravariant_class OrderDual.OrderedCancelAddCommMonoid.to_contravariantClass
 #align order_dual.ordered_cancel_comm_monoid.to_contravariant_class OrderDual.OrderedCancelCommMonoid.to_contravariantClass
 
 @[to_additive]

2258b40d

chore: the style linter shouldn't complain about long #align lines (#1643)

54af0498

Diff

@@ -96,12 +96,8 @@ instance OrderedCancelCommMonoid.to_contravariantClass [OrderedCancelCommMonoid
     -- https://github.com/leanprover/lean4/issues/1892
     -- We should be able to remove this after nightly-2022-11-30 arrives.
     elim a b c := @OrderedCancelCommMonoid.le_of_mul_le_mul_left α _ a c b
-#align
-  order_dual.ordered_cancel_add_comm_monoid.to_contravariant_class
-  OrderDual.OrderedCancelAddCommMonoid.to_contravariantClass
-#align
-  order_dual.ordered_cancel_comm_monoid.to_contravariant_class
-  OrderDual.OrderedCancelCommMonoid.to_contravariantClass
+#align order_dual.ordered_cancel_add_comm_monoid.to_contravariant_class OrderDual.OrderedCancelAddCommMonoid.to_contravariantClass
+#align order_dual.ordered_cancel_comm_monoid.to_contravariant_class OrderDual.OrderedCancelCommMonoid.to_contravariantClass
 
 @[to_additive]
 instance orderedCancelCommMonoid [OrderedCancelCommMonoid α] : OrderedCancelCommMonoid αᵒᵈ :=

2258b40d

chore: update SHA in porting header (#1306)

These files correspond to files flagged "The following files have been modified since the commit at which they were verified." by port_status.py but are in sync with mathlib3, so we can update the hash.

I only updated the easy ones, the others need a closer inspection.

Co-authored-by: Reid Barton <rwbarton@gmail.com>

cac405f4

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Jeremy Avigad, Leonardo de Moura, Mario Carneiro, Johannes Hölzl
 
 ! This file was ported from Lean 3 source module algebra.order.monoid.order_dual
-! leanprover-community/mathlib commit 70d50ecfd4900dd6d328da39ab7ebd516abe4025
+! leanprover-community/mathlib commit 2258b40dacd2942571c8ce136215350c702dc78f
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/

70d50ecf

chore: add source headers to ported theory files (#1094)

The script used to do this is included. The yaml file was obtained from https://raw.githubusercontent.com/wiki/leanprover-community/mathlib/mathlib4-port-status.md

f168625e

Diff

@@ -2,6 +2,11 @@
 Copyright (c) 2016 Jeremy Avigad. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Jeremy Avigad, Leonardo de Moura, Mario Carneiro, Johannes Hölzl
+
+! This file was ported from Lean 3 source module algebra.order.monoid.order_dual
+! leanprover-community/mathlib commit 70d50ecfd4900dd6d328da39ab7ebd516abe4025
+! Please do not edit these lines, except to modify the commit id
+! if you have ported upstream changes.
 -/
 import Mathlib.Algebra.Group.OrderSynonym
 import Mathlib.Algebra.Order.Monoid.Cancel.Defs

`algebra.order.monoid.order_dual` ⟷ `Mathlib.Algebra.Order.Monoid.OrderDual`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 1 + 29

algebra.order.monoid.order_dual ⟷ Mathlib.Algebra.Order.Monoid.OrderDual

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 1 + 29

`algebra.order.monoid.order_dual` ⟷ `Mathlib.Algebra.Order.Monoid.OrderDual`