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» A First-Order Isomorphism Theorem
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STACS
1993
Springer
13 years 8 months ago
A First-Order Isomorphism Theorem
We show that for most complexity classes of interest, all sets complete under rstorder projections (fops) are isomorphic under rst-order isomorphisms. That is, a very restricted v...
Eric Allender, José L. Balcázar, Nei...
FSTTCS
2001
Springer
13 years 9 months ago
The First-Order Isomorphism Theorem
For any class C und closed under NC1 reductions, it is shown that all sets complete for C under first-order (equivalently, Dlogtimeuniform AC0 ) reductions are isomorphic under ...
Manindra Agrawal
CIE
2009
Springer
13 years 8 months ago
The First Order Theories of the Medvedev and Muchnik Lattices
We show that the first order theories of the Medevdev lattice and the Muchnik lattice are both computably isomorphic to the third order theory of the natural numbers.
Andrew Lewis, André Nies, Andrea Sorbi
TABLEAUX
2000
Springer
13 years 8 months ago
MSPASS: Modal Reasoning by Translation and First-Order Resolution
mspass is an extension of the first-order theorem prover spass, which can be used as a modal logic theorem prover, a theorem prover for description logics and a theorem prover for ...
Ullrich Hustadt, Renate A. Schmidt
LORI
2009
Springer
13 years 11 months ago
First-Order Logic Formalisation of Arrow's Theorem
Arrow’s Theorem is a central result in social choice theory. It states that, under certain natural conditions, it is impossible to aggregate the preferences of a finite set of i...
Umberto Grandi, Ulle Endriss