Media type: E-Article Title: Learning in mathematically-based domains: Understanding and generalizing obstacle cancellations Contributor: Shavlik, Jude W.; DeJong, Gerald F. Published: Elsevier BV, 1990 Published in: Artificial Intelligence, 45 (1990) 1-2, Seite 1-45 Language: English DOI: 10.1016/0004-3702(90)90036-y ISSN: 0004-3702 Keywords: Artificial Intelligence ; Linguistics and Language ; Language and Linguistics Origination: Footnote: