Hi, I'm probably just being dense here, but how do you convert Array#| to a Proc object? I tried this in irb: irb(main):002:0> [].|.to_proc ArgumentError: wrong # of arguments(0 for 1) from (irb):2:in `|' from (irb):2 irb(main):003:0> ([].|).to_proc ArgumentError: wrong # of arguments(0 for 1) from (irb):3:in `|' from (irb):3 Thanks, Emil