, Volume 50, Issue 1, pp 99-117

Case Splitting in an Automatic Theorem Prover for Real-Valued Special Functions

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Case splitting, with and without backtracking, is compared with straightforward ordered resolution. Both forms of splitting have been implemented for MetiTarski, an automatic theorem prover for real-valued special functions such as $\exp$ , ln , sin, cos and tan − 1. The experimental findings confirm the superiority of true backtracking over the simulation of backtracking through the introduction of new predicate symbols, and the superiority of both over straightforward resolution.