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Title: Evaluation and denotation of pure LISP programs : a worked example in semantics
Author: Gordon, Michael J. C.
ISNI:       0000 0001 3506 4467
Awarding Body: University of Edinburgh
Current Institution: University of Edinburgh
Date of Award: 1974
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A Scott/Strachey style denotational semantics intended to describe pure LISP is examined. I present evidence that it is an accurate rendering of the language described in chapter 1 of the LISP 1.5 Programmer's, Manual, in particular I show that call-by-value and fluid variables are correctly handled. To do this I have: (1) written an operational 'semantics' of pure LISP and shown it equivalent to the denotational one (2) Proved that, relative to the denotational semantics, the LISP functions apply,eval,...,etc. correctly compute meanings. The proof techniques used are derived from the work of Wadsworth; roughly one first proves the results for a class of 'finite' programs and then extends them to all programs by a limiting argument. Conceptually these arguments are inductions on length of computation and to bring this out I've formulated a rule of inference which enables such operational reasoning to be applied to the denotational semantics.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Computer program language ; LISP ; Programming languages