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Vampire is a resolution-based theorem prover for rst-order classical logic. The current version implements ordered binary resolution with the set-of-support strategy and ordered hyperresolution. The competition version will have equality rules.
Vampire owes many of its design ideas to Otter . It uses a saturation-based algorithmsimilar to that described in , but implemented more efficiently. Some planned (but not yet implemented) extensions of Vampire are directed toward the ideas underlying the design of SPASS .
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