A2CCS is a conservative extension of CCS, enriched with an operator of strong prefixing,
enabling the modeling of atomic sequences and multi-party synchronization (realized as an atomic sequence of binary
synchronizations); the classic dining philosophers problem is used to illustrate the approach.
A step semantics for A2CCS is also presented directly as a labeled transition system.
A safe Petri net semantics for this language
is presented, following the approach of Degano, De Nicola, Montanari and Olderog.
We prove that a process p and its associated net \Net(p) are interleaving bisimilar (Theorem \ref{teo-inter}).
Moreover, to support the claim that the intended concurrency is well-represented in the net, we also prove that
a process p and its associated net \Net(p) are step bisimila