support for the Prism.js syntax highlighter -- via external Node.js process;

support for JavaScript syntax and Node.js platform;

merged

tuned signature;

clarified signature: ensure that entries are well-formed --- no consecutive separators, no separators at start/end;

clarified signature: only support nameless separator;

tuned signature;

use timeout with MiniSat

merged

added lemma reflp_on_conversp[simp]

added lemma transp_reflclp[simp]

added lemma reflclp_ident_if_reflp[simp]

added lemma reflp_on_reflclp[simp]

strengthened lemma reflp_rtranclp and renamed to reflp_on_rtranclp

more robust selection: avoid duplicates via "batch" number; evade attempts to select separator via keyboard or mouse (non-keyboard), assuming there are no consecutive separators;

tuned GUI;

clarified GUI.Selector, with support for separator as pseudo-entry; clarified signature;

clarified GUI state; added "Load" button;

clarified file names;

clarified Log_Progress vs. GUI: more like Syslog_Dockable;

clarified signature: more public operations;

tuned signature, following hints by IntelliJ IDEA;

merged

retain derived lemma for better findability

generalized sorted_sort_id to sort_key_id_if_sorted

suppress document_required GUI element for now: still unused;

clarified layout;

clarified node_required status: distinguish theory_required vs. document_required; more robust and more correct Geometry.in operation;

proper user tool;

tuned comments;