This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# TrueClass.^ (from ruby core) --- true ^ obj -> !obj --- Exclusive Or---Returns `true` if *obj* is `nil` or `false`, `false` otherwise.
This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.