释义 |
Computational Adequacy Theorem Computational Adequacy TheoremThis states that for any program (a non-function typed term inthe typed lambda-calculus with constants) normal order reduction (outermost first) fails to terminate if and only ifthe standard semantics of the term is bottom. Moreover,if the reduction of program e1 terminates with some head normal form e2 then the standard semantics of e1 and e2 willbe equal. This theorem is significant because it relates theoperational notion of a reduction sequence and thedenotational semantics of the input and output of areduction sequence. |