Simple Browser : Welcome guest : log in
Home |  Graph |  LogLearn |  ]  KB:  Language:    Formal Language: 



Knowledge base statistics: as of 2026/04/16
KB Term: 
Total TermsTotal AxiomsTotal Rules
15571 213617 7498

Relations: 1759
non-linguistic axioms: 160584

Ground tuples: 206032
  of which are binary: 147688
  of which arity more than binary: 58431

Rules: 7498
  of which are horn: 2548
first-order: 5504
temporal: 878
modal: 283
epistemic: 89
other higher-order: 855



Sigma web home      Suggested Upper Merged Ontology (SUMO) web home
Sigma version 3.0.0-f38d91f4 (2026-04-13) is open source software produced by Articulate Software and its partners