Prerequisites

Please put an X between the brackets as you perform the following steps:

• Check that your issue is not already filed:
  https://github.com/leanprover/lean4/issues
• Reduce the issue to a minimal, self-contained, reproducible test case.
  Avoid dependencies to Mathlib or Batteries.
• Test your test case against the latest nightly release, for example on
  https://live.lean-lang.org/#project=lean-nightly
  (You can also use the settings there to switch to “Lean nightly”)

Description

The change ... with ... tactic is not implemented

Context

Previously reported at #1745, where change has been addressed but not changeWith.

Steps to Reproduce

theorem test: 1 = 2 := by
  change 1 with 2  -- Error: tactic 'Lean.Parser.Tactic.changeWith' has not been implemented

Versions

• leanprover/lean4:v4.10.0-rc1
• https://live.lean-lang.org/#project=lean-nightly

Additional Information

NA

Impact

Add 👍 to issues you consider important. If others are impacted by this issue, please ask them to add 👍 to it.