- 1 CODD, E.F. A relational model of data for large shared data banks. Commun. ACM 13, 6 (June 1970), 377-387. Google Scholar
- 2 CODD, E.F. Understanding relations (Installment #7). FDTBulletin ofA CM-SIGMOD 7, 3-4 (1975), 23-28.Google Scholar
- 3 FITTING, M.C. Intuitionistic Logic, Model Theory and Forcing. North-Holland, Amsterdam, 1969.Google Scholar
- 4 HALL, P. On representatives of subsets. J. London Math. Soc. 10 (1935), 26-30.Google Scholar
- 5 HOPCROFT, J.E., AND KARP, R.M. An n 5/2 algorithm for maximum matchings in bipartite graphs. SIAM J. Comput. 2 (1973), 225-231.Google Scholar
- 6 HUGHES, G.E., AND CRESSWELL, M.J. An Introduction to Modal Logic. Methuen and Company, London, 1972.Google Scholar
- 7 JAEGERMANN, M. Information storage and retrieval systems with incomplete information I, II. Fundamenta Inform. 2 (1978), 17-41, 2 (1979), 141-166.Google Scholar
- 8 KRIPKE, S.A. Semantical analysis of modal logic I. Z. Math. Logik Grundlagen Math. 9 (1963), 67- 96.Google Scholar
- 9 KRIPKE, S.A. Semantical analysis of intuitionistic logic. In Formal Systems and Recursive Functions, J.N. Crossley and M.A.E. Dummett, Eds., North-Holland, Amsterdam, 1965, pp. 92-129.Google Scholar
- 10 KURATOWSrd, K., AND MOSTOWSIO, A. Set Theory. Polish Scientific Publishers, Warsaw 1976.Google Scholar
- 11 LiPSKI, W. Informational systems with incomplete information. Proc. 3rd Int. Syrup. on Automata, Languages and Programming, Edinburgh, 1976; S. Michaelson and R. Milner, Eds., Edinburgh University Press, Edinburgh, 1976, pp. 120-130.Google Scholar
- 12 LIPSKJ, W. On the logic of incomplete information. Proc. 6th Int. Symp. on Mathematical Foundations of Computer Science, Tatranska Lomnica, Czechoslovakia, Sept. 5-9, 1977; T. Gruska, Ed., Springer-Verlag, Berlin, 1977, pp. 374-381.Google Scholar
- 13 LIPSKI, W. On semantic issues connected with incomplete information databases. ACM Trans. Database Syst. 4, 3 (Sept. 1979), 262-296. Google Scholar
- 14 MAREK, W., AND PAWLAK, Z. Information storage and retrieval systems: Mathematical foundations. Theoret. Comput. Sci. 1 (1976), 331-354.Google Scholar
- 15 RASIOWA, H., AND SIKORSKI, R. The Mathematics of Metamathematics. Polish Scientific Publishers, Warsaw, 1963.Google Scholar
Index Terms
- On Databases with Incomplete Information
Comments