[PPL-devel] pre-image operation

[Roberto Bagnara]

Hello Zhoulai.

On 06/30/13 00:15, Zhoulai wrote:
> Is there any reference publication for PPL's pre-image operation?
> The operation is explained at sect. 1.6.9 of user manual but no
> references is mentioned. I am puzzled how you implemented
> tpre-image?

I am not sure I understand the question.  The notion of image
and preimage of a relation are quite standard.
Kind regards,

   Roberto

-- 
     Prof. Roberto Bagnara

Applied Formal Methods Laboratory - University of Parma, Italy
mailto:bagnara at cs.unipr.it
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