TY - JOUR AB - Purpose– On the basis of previous work, the authors aim to further study the problem of infinity existing in between predicates and sets.Design/methodology/approach– A conceptual approach is taken in the paper.Findings– The authors modify the conventional rule of thinking that each predicate determines a unique set, and establish a principle regarding the relationship between predicates and sets. Then, the authors study the structures of actually infinite, rigid sets.Originality/value– The structure of actually infinite sets is detailed. VL - 37 IS - 3/4 SN - 0368-492X DO - 10.1108/03684920810863525 UR - https://doi.org/10.1108/03684920810863525 AU - Zhu Wujia AU - Lin Yi AU - Gong Ningsheng AU - Du Guoping ED - Yi Lin PY - 2008 Y1 - 2008/01/01 TI - Intension and structure of actually infinite, rigid sets T2 - Kybernetes PB - Emerald Group Publishing Limited SP - 534 EP - 542 Y2 - 2024/05/05 ER -