| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
Term rewriting is a fundamental computational model that underlies automated theorem proving and algebraic specification languages. In applications, deduction or computation is usually performed as an exhaustive search of normal forms. Therefore, for efficient computation, confluence that guarantees uniqueness of normal forms is considered as one of the most important properties in the area of rewriting. The main outcomes of our project are three: (1) We developed effective confluence analysis based on commutative decomposition, critical pair analysis, and E-unification. As applications of confluence analysis, (2) we obtained a simple proof for correctness of abstract completion which is a theoretical foundation of automated theorem proving, and also (3) a basic normalization theorem that enables us to effectively compute a normal form of basic terms.
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