@Paolo Giarrusso , destruct
gave me the same error message.
But move => x; rewrite (UIP_refl_nat _ (Nat.add_1_r 0)) //=.
really does finish the goal.
Thanks a lot for this hint, @Paolo Giarrusso and @Guillaume Melquiond .
Sebastian Ertel has marked this topic as resolved.
Last updated: Oct 04 2023 at 22:01 UTC