TYPE-2 CUTS, BAD CUTS AND VERY BAD CUTS

Authors
Citation
Rl. Jin, TYPE-2 CUTS, BAD CUTS AND VERY BAD CUTS, The Journal of symbolic logic, 62(4), 1997, pp. 1241-1252
Citations number
14
ISSN journal
00224812
Volume
62
Issue
4
Year of publication
1997
Pages
1241 - 1252
Database
ISI
SICI code
0022-4812(1997)62:4<1241:TCBCAV>2.0.ZU;2-D
Abstract
Type two cuts, bad cuts and very bad cuts are introduced in [10] for s tudying the relationship between Loeb measure and U-topology of a hype rfinite time line in an omega(1)-saturated nonstandard universe. The q uestions concerning the existence of those cuts are asked there. In th is paper we answer, fully or partially, some of those questions by sho wing that: (1) type two cuts exist, (2) the N-1-isomorphism property i mplies that bad cuts exist, but no bad cuts are very bad.