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Summing Boolean Algebras

✍ Scribed by Antonio Aizpuru; Antonio Gutiérrez-Dávila


Publisher
Institute of Mathematics, Chinese Academy of Sciences and Chinese Mathematical Society
Year
2004
Tongue
English
Weight
217 KB
Volume
20
Category
Article
ISSN
1439-7617

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Precipitousness of a Sum of Ideals on Co
✍ Joji Takahashi; Kazuaki Kajitori 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 473 KB 👁 1 views

I ) The second author's contribution to the paper comes out of his Ph. D. dissertation written 21' under the supervision of Prof. TAKEUTI to whom the author is grateful. Math. (2) 94 (1971), 201 -245.

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✍ G. J. Logan 📂 Article 📅 1977 🏛 John Wiley and Sons 🌐 English ⚖ 212 KB

## S(z A y ) z S(A), by (c) * S(z) A S(Y) 2 S(A) e S(x) 2 S(A) and S(y) 2 S(A) e C ( s ) s C ( A ) 'and C ( y ) E C ( A ) , by (c) o x € C ( A ) and Y E C ( A ) . Now every ultrafilter is consistent and closed with respect to C, since if U is an ultrafilter and C ( U ) = X , then C({,uu,, . . ., ,