Read the next Prolog term from the current input stream and unify it with Term . Read Term from Stream . Read a clause from Stream . Read, returning term and bindings from Stream . Show is the command the user should type to show the saved events.
Help is the command to get an overview of the capabilities.
Special is a list of commands that are not saved in the history. Prompt is the first prompt given. See section for available substitutions. Dynamic predicate, normally not defined. The user can define this predicate to set the history depth.