Hebrew University, Jerusalem, Israel
University of California, Berkeley, CA 94720
Silver and subsequently Galvin and Hajnal, got bounds on , for ℵα strong limit cardinal of cofinality > ℵ0. We somewhat improve those results.
(Received July 01 1977)
(Revised July 11 1978)
1 The author would like to thank the United States-Israel Binational Foundation for partially supporting this research by Grant 1110, and the NSF for partially supporting this research by grant MCS-76–08979.