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authorzuntum <zuntum@pkgsrc.org>2001-11-01 00:32:23 +0000
committerzuntum <zuntum@pkgsrc.org>2001-11-01 00:32:23 +0000
commit98cf373d367fc32881cb40926be1a79736f39794 (patch)
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downloadpkgsrc-98cf373d367fc32881cb40926be1a79736f39794.tar.gz
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+Otter (Organized Techniques for Theorem-proving and Effective
+Research) is a resolution-style theorem-proving program for
+first-order logic with equality. Otter includes the inference rules
+binary resolution, hyperresolution, UR-resolution, and binary
+paramodulation. Some of its other abilities and features are
+conversion from first-order formulas to clauses, forward and back
+subsumption, factoring, weighting, answer literals, term ordering,
+forward and back demodulation, evaluable functions and predicates, and
+Knuth-Bendix completion. Otter is coded in C, is free, and is
+portable to many different kinds of computer.