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A Heuristic Prover for Real Inequalities
journal contribution
posted on 2014-06-01, 00:00 authored by Jeremy AvigadJeremy Avigad, Robert Y. Lewis, Cody RouxWe describe a general method for verifying inequalities between real-valued expressions, especially the kinds of straightforward inferences that arise in interactive theorem proving. In contrast to approaches that aim to be complete with respect to a particular language or class of formulas, our method establishes claims that require heterogeneous forms of reasoning, relying on a Nelson-Oppen-style architecture in which special-purpose modules collaborate and share information. The framework is thus modular and extensible. A prototype implementation shows that the method is promising, complementing techniques that are used by contemporary interactive provers.