-(* extracts the Name from a CoreVar *)
-Variable coreVarCoreName : CoreVar -> CoreName. Extract Inlined Constant coreVarCoreName => "Var.varName".
-
-(* the magic wired-in name for the modal type introduction form *)
-Variable hetmet_brak_name : CoreName. Extract Inlined Constant hetmet_brak_name => "PrelNames.hetmet_brak_name".
-
-(* the magic wired-in name for the modal type elimination form *)
-Variable hetmet_esc_name : CoreName. Extract Inlined Constant hetmet_esc_name => "PrelNames.hetmet_esc_name".
-
+Variable coreExprToString : @CoreExpr CoreVar -> string. Extract Inlined Constant coreExprToString => "outputableToString".
+Instance CoreExprToString : ToString (@CoreExpr CoreVar) := { toString := coreExprToString }.