Merge pull request gap-packages#121 from cdwensley/preimages

define NC versions of PreImages... in init.g

init.g

@@ -10,6 +10,20 @@ HapGlobalDeclarationsAreAlreadyLoaded:=true;
 MakeReadOnlyGlobal("HapGlobalDeclarationsAreAlreadyLoaded");
 fi;
 
+##I introduce the NC versions of PreImages...
+if not IsBound( PreImagesNC ) then
+    BindGlobal( "PreImagesNC", PreImages );
+fi;
+if not IsBound( PreImagesElmNC ) then
+    BindGlobal( "PreImagesElmNC", PreImagesElm );
+fi;
+if not IsBound( PreImagesSetNC ) then
+    BindGlobal( "PreImagesSetNC", PreImagesSet );
+fi;
+if not IsBound( PreImagesRepresentativeNC ) then
+    BindGlobal( "PreImagesRepresentativeNC", PreImagesRepresentative );
+fi;
+
 ReadPackage("HAP","/lib/externalSoftware.gap");