Publisher's Synopsis
Excerpt from A Transformational Approach to the Development and Verification of Programs in a Very High Level Language
In informal exposition, the Correctness of a complex algorithm is often demonstrated by deriving it through successive refinement steps from a high level specification, and supplying proofs of the underlying principles used in the process. However, most existing mechanical program verifiers ignore this standard expository practice, and are generally designed to verify programs written in a low level form. While logically simple algorithms can be_handled adequately in this manner, we believe that attempting to verify more complex algorithms at a low level will be unproductive. In particular.
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