© 1987 by British Computer Society
A While-rule in Martin-Löf's Theory of Types
Department of Computer Science, University of Essex, Colchester CO4 3SQ, UK
The use of invariant properties and bound functions is a sound and well-documented methodology for this design of loop structures. We show how to formulate the methodology as a proposition in the intuitionistic theory of types developed by Per Martin-Löf. By proving the validity of this proposition we effectively obtain a method of writing while-statements in Type Theory. Two simple and well-known examples are given to illustrate the method.
Received July 1985.
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Department of Computer Science, University of Essex, Colchester CO4 3SQ