The global value false is the only instance of class FalseClass and represents a logically false value in boolean expressions. The class provides operators allowing false to participate correctly in logical expressions.
false & anObject  → falsefalse. anObject is always
      evaluated as it is the argument to a method call—there is no
      short-circuit evaluation in this case.
		false ^ anObject  → true or falsenil or
      false, returns false; otherwise, returns true.
		false | anObject  → true or falsefalse if anObject is
      nil or false; true otherwise.Extracted from the book "Programming Ruby - The Pragmatic Programmer's Guide"
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