Merge PR #13762: Remove double induction tactic

Ack-by: Zimmi48
Reviewed-by: ppedrot

2 files changed, 9 insertions, 13 deletions

diff --git a/doc/changelog/04-tactics/13762-remove_double_induction.rst b/doc/changelog/04-tactics/13762-remove_double_induction.rst
new file mode 100644
index 0000000000..4ea54a1ab6
--- /dev/null
+++ b/doc/changelog/04-tactics/13762-remove_double_induction.rst
@@ -0,0 +1,9 @@
+- **Removed:**
+  double induction tactic.  Replace :n:`double induction @ident @ident`
+  with :n:`induction @ident; induction @ident` (or
+  :n:`induction @ident ; destruct @ident` depending on the exact needs).
+  Replace :n:`double induction @natural__1 @natural__2` with
+  :n:`induction @natural__1; induction natural__3` where :n:`natural__3` is the result
+  of :n:`natural__2 - natural__1`
+  (`#13762 <https://github.com/coq/coq/pull/13762>`_,
+  by Jim Fehrle).
diff --git a/doc/sphinx/proof-engine/tactics.rst b/doc/sphinx/proof-engine/tactics.rst
index 25efca563a..72970f46b0 100644
--- a/doc/sphinx/proof-engine/tactics.rst
+++ b/doc/sphinx/proof-engine/tactics.rst
@@ -2073,19 +2073,6 @@ analysis on inductive or co-inductive objects (see :ref:`inductive-definitions`)
    is the name given by :n:`intros until @natural` to the :n:`@natural`-th non-dependent
    premise of the goal.
 
-.. tacn:: double induction @ident @ident
-   :name: double induction
-
-   This tactic is deprecated and should be replaced by
-   :n:`induction @ident; induction @ident` (or
-   :n:`induction @ident ; destruct @ident` depending on the exact needs).
-
-.. tacv:: double induction @natural__1 @natural__2
-
-   This tactic is deprecated and should be replaced by
-   :n:`induction num1; induction num3` where :n:`num3` is the result
-   of :n:`num2 - num1`
-
 .. tacn:: dependent induction @ident
    :name: dependent induction