Learnable classes of categorial grammars

1. Introduction 2. Learnability theorem 3. A theorem of finite elasticity 4. Classical categorial grammar 5. Basic theory of rigid grammars 6. Learning from structures I: rigid, k-valued, and least-valued grammar 7. Learning from structures II: Subclasses of the optimal grammars 8. Learning from strings 9. Variations 10. Conclusions Appendix.