bin/hilbert in hilbert-0.0.2700100 vs bin/hilbert in hilbert-0.0.2700110

@@ -9,9 +9,16 @@
 require 'hilbert/iq'
 
 # TODO: There are vanch of todo ..
 case ARGV.first
 when '-i'
+  if ARGV[1] == '-zfc'
+    Hilbert::Iq.execute('postulate zfc_analysis')
+    print %|Hi guys, your postulating zfc_analysis is success. :) \n\n|
+  else
+    print %|Hi guys,thank you for using Hilbert.\nYou need to execute "postulate zfc_analysis" if you wanna do real analysis.\n\n|
+  end
+
   loop do
     print 'Enjoy! -> '
     begin
       input = $stdin.gets
       output = Hilbert::Iq.execute(input)