made supp proofs more robust by not using the standard induction; renamed some example files
no_document use_thys
["Ex/Classical",
"Ex/CoreHaskell",
Ex/Datatypes",
"Ex/Ex1",
"Ex/ExPS3",
"Ex/Multi_Recs",
"Ex/Multi_Recs2",
"Ex/LF",
"Ex/Lambda",
"Ex/Let",
"Ex/LetPat",
"Ex/LetRec",
"Ex/LetRec2",
"Ex/LetFun",
"Ex/Modules",
"Ex/SingleLet",
"Ex/TypeSchemes",
"Ex/TypeVarsTest"
];