Sigma (original) (raw)

Sigma knowledge engineering system is an system for developing, viewing and debugging theories in first order logic. It works with Knowledge Interchange Format (KIF) and is optimized for the Suggested Upper Merged Ontology (SUMO) www.ontologyportal.org . Sigma has moved to github.com/ontologyportal/sigmakee

Features

• natural language generation
• theorem proving
• ontology browsing

Project Samples

License

GNU General Public License version 2.0 (GPLv2)

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