By Richard J. Lipton
Communications of the ACM,
December 1975,
Vol. 18 No. 12, Pages 717-721
10.1145/361227.361234
Comments
When proving that a parallel program has a given property it is often convenient to assume that a statement is indivisible, i.e. that the statement cannot be interleaved with the rest of the program. Here sufficient conditions are obtained to show that the assumption that a statement is indivisible can be relaxed and still preserve properties such as halting. Thus correctness proofs of a parallel system can often be greatly simplified.
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