Recipesdemo lang logic syntax module demo::lang::logic::\syntax::PropositionsOn this pagemodule demo::lang::logic::\syntax::Propositionsrascal-0.40.17Usageimport demo::lang::logic::\syntax::Propositions;Dependenciesextend demo::lang::logic::\syntax::Booleans;extend lang::std::Id;syntax Formulasyntax Formula = id: Id name \ "true" \ "false";