TY - JOUR AB - Purpose– The paper aims to show using a different method that any uncountable set is a self‐contradictory non‐set.Design/methodology/approach– The paper discusses the concept.Findings– Elsewhere it is shown that in the framework of ZFC, various countable infinite sets are all self‐contradicting non‐sets. In this paper, the authors will generalize the concept of Cauchy theater, and establish the concept of transfinite Cauchy theaters. After that, employing a new method, they will prove that various uncountable infinite sets, as studied in naive set theory and modern axiomatic set theory, are also self‐contradicting non‐sets.Originality/value– The concept of general Cauchy theater is introduced. VL - 37 IS - 3/4 SN - 0368-492X DO - 10.1108/03684920810863435 UR - https://doi.org/10.1108/03684920810863435 AU - Zhu Wujia AU - Lin Yi AU - Du Guoping AU - Gong Ningsheng ED - Yi Lin PY - 2008 Y1 - 2008/01/01 TI - Modern system of mathematics and general Cauchy theater in its theoretical foundation T2 - Kybernetes PB - Emerald Group Publishing Limited SP - 465 EP - 468 Y2 - 2024/09/20 ER -