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 bin/fancy examples/require.fy 
32455.32
An exception occurred running bin/fancy
    undefined method `:-' on an instance of Float. (NoMethodError)

Backtrace:
     Kernel(Float)#:- (method_missing) at kernel/delta/kernel.rb:85
                       main.__script__ at examples/arithmetic.fyc:3
  Fancy::CodeLoader.load_compiled_file at rbx/fancy_code_loader.rb:109
          Kernel(Object)#fancy_require at rbx/fancy_ext/kernel.rb:10
                       main.__script__ at examples/require.fyc:3
  Fancy::CodeLoader.load_compiled_file at rbx/fancy_code_loader.rb:109
                { } in main.__script__ at lib/main.fyc:88
  { } in Rubinius::BlockEnvironment#Block at rbx/fancy_ext/block_env.rb:18
          { } in Object(String)#if_do: at lib/rubinius/object.fyc:45
                    NilClass#if_false: at lib/nil_class.fyc:23
                 Object(String)#if_do: at lib/rubinius/object.fyc:46
                       main.__script__ at lib/main.fyc:89
  Fancy::CodeLoader.load_compiled_file at rbx/fancy_code_loader.rb:109
                       main.__script__ at bin/fancy:9
      Rubinius::CodeLoader#load_script at kernel/delta/codeloader.rb:67
      Rubinius::CodeLoader.load_script at kernel/delta/codeloader.rb:91
               Rubinius::Loader#script at kernel/loader.rb:460
                 Rubinius::Loader#main at kernel/loader.rb:571
                 Rubinius::Loader.main at kernel/loader.rb:609
                     Object#__script__ at kernel/loader.rb:621