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Essay example - Modelling and Formal Verification
Pages 2 (502 words)
Extract of sample
1. There are the signals at the entry and at the exit of the each station. At the stations there are signal boxes. When a train goes from A to B the A signal is green and B signal is red. So if the train wants to go from D to A, it can do that, but if it is impossible to move from B to A, because the tunnel is occupied. Signalbox at the station A regulates the signals 1, 2, 8, 7. The same is with other boxes.
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