Abstract
We present an approach to folding of finite program terms based on the detection of recurrence relations in a single given term which is considered as the k-th unfolding of an unknown recursive program. Our approach goes beyond Summers' classical approach in several aspects: It is language independent and works for terms belonging to an arbitrary term algebra; it allows induction of sets of recursive equations which are in some arbitrary ``calls'' relation; induced equations can be dependent on more than one input parameters and we can detect interdependencies of variable substitutions in recursive calls; the given input terms can represent incomplete unfoldings of an hypothetical recursive program.
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