["-tptppath",Arg.String
(fun s -> Helm_registry.set_string "matita.tptppath" s),
"Where to find the Axioms/ and Problems/ directory"];
["-tptppath",Arg.String
(fun s -> Helm_registry.set_string "matita.tptppath" s),
"Where to find the Axioms/ and Problems/ directory"];