Abstract:Summary. This article introduces a new derivation mode for P systems that permits to make a look-ahead on the next configuration and check for some forbidding conditions on it. The interesting point is that the software implementation of this mode needs very small modifications to the standard algorithm of rule assignment for maximally parallelism. As benefits of this mode some non-deterministic proofs become deterministic. As an example we present a generalized communicating P system that accepts 2 n in n ste… Show more
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