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The undecidability of the second-order unification problem. (English) Zbl 0457.03006

03B25 Decidability of theories and sets of sentences
03B15 Higher-order logic; type theory (MSC2010)
03D35 Undecidability and degrees of sets of sentences
03D80 Applications of computability and recursion theory
common instance
Full Text: DOI
[1] Huet, G.P., The undecidability of unification in third order logic, Information and control, 22, 257-267, (1973) · Zbl 0257.02038
[2] Parikh, R., Some results on the length of proofs, Trans. amer. math. soc., 177, 29-36, (1973) · Zbl 0269.02011
[3] Paterson, M.S.; Wegman, M.N., Linear unification, J. comput. system sci., 16, 158-167, (1978) · Zbl 0371.68013
[4] Robinson, J.A., A machine-oriented logic based on the resolution principle, J. ACM, 12, 23-41, (1965) · Zbl 0139.12303
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