RedPen, a document checker is based and/or uses the following libraries & programs IntelliJ Community developed by JetBrains (https://github.com/JetBrains/intellij-community) - Apaeche 2.0 LICENSE. textlint-rule-no-doubled-conjunctive-particle-ga - MIT textlint-rule-no-doubled-joshi - MIT