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Does it exist for Common Lisp/Scheme? I know that could be implemented in a day, but still... Edit: https://lisa.sourceforge.net/ https://lisa.sourceforge.net/

• lispm 3y ago
  The precursor to CLIPS was called ART Inference and was a large commercial & very expensive Expert System development tool, written in Common Lisp. Unfortunately it seems to be lost - I haven't seen anything about it for several decades. Other than that there are a bunch of rule-based systems in Common Lisp. For example LispWorks Enterprise includes "KnowledgeWorks", which features a forward chainer based on the RETE algorithm. https://www.lispworks.com/products/knowledgeworks.html https://www.lispworks.com/products/knowledgeworks.html