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[Pierre Casteran <pierre.casteran AT labri.fr>]

Hi,

 Are you looking for a tactic which keeps only one hypothesis of
type heap ?

 If so, it seems that a tactic like that works :


Parameter heap:Prop.


Ltac clearheap :=
  match goal with |
    [h1 : heap |- _] =>
                  (clear h1 ;
                     match goal with | [h1 : heap |- _] => clearheap
                                     | _ => fail 1 end)
                  || idtac
  end.

Goal heap -> heap -> nat -> heap -> heap ->nat.
 intros.
 clearheap.
 auto.
Qed.



Pierre




Selon xiang sen 
<xiangsen AT ustc.edu>:

> Hi, everyone!
>
> (*I define indom as :*)
> Ltac indom :=
> match goal with
> | [h1 : heap |- _] => clear h1
> end.
>
> (*This is ok.*)
> (*but *)
> Ltac indom :=
> match goal with
> | [h1 : heap; h2 : heap] |- ] => clear h1
> end.
> (** doesn't work **)
>
> How to resolve?
> Thanks
>
> All the best
> Sen
>
>
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-- 
Pierre Casteran

http://www.labri.fr/Perso/~casteran/

(+33) 540006931

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