ausblenden:
Schlagwörter:
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Zusammenfassung:
Subtyping judgments of the polymorphic second-order typed
lambda-calculus Fsub extended by recursive types and different known
inference rules for these types could be interpreted in S2S, M.Rabin's
monadic second-order theory of two successor functions. On the one hand,
this provides a comprehensible model of the parametric and inheritance
polymorphisms over recursive types, on the other, proves that the
corresponding subtyping theories are not essentially undecidable, i.e.,
possess consistent decidable extensions.
