Martin Giese & Victor Gutierrez-Basulto 
Rules and Reasoning [EPUB ebook] 
4th International Joint Conference, RuleML+RR 2020, Oslo, Norway, June 29 – July 1, 2020, Proceedings

This book constitutes the proceedings of the International Joint Conference on Rules and Reasoning, Rule ML+RR 2020, held in Oslo, Norway, during June-July 2020*. This is the 4th conference of a new series, joining the efforts of two existing conference series, namely "Rule ML" (International Web Rule Symposium) and "RR" (Web Reasoning and Rule Systems).The 7 full research papers presented together with 6 short technical communications papers were carefully reviewed and selected from 30 submissions.*The conference was held virtually due to the COVID-19 pandemic.