Mathematical Reasoning

The Cantor Attic: A Database of Mathematical Cardinality

Comprehensive database of large cardinal axioms and their relationships in set theory. Important resource for researchers in mathematical logic and foundations.

About

The Cantor Attic is a comprehensive database of large cardinal axioms in set theory. It catalogs the hierarchy of large cardinals and their interrelationships.

Content

  • Large cardinal axioms: From inaccessible cardinals to rank-into-rank
  • Consistency strength: Implications and equiconsistencies
  • History: Development of large cardinal theory
  • Open problems: Current research questions

Significance

Essential reference for set theorists and researchers in mathematical foundations.

Maintained by

Joel David Hamkins (Notre Dame) and community contributors.