1 files changed, 13 insertions, 0 deletions
diff --git a/state.rb b/state.rb
index e971843..a15f6b8 100644
--- a/state.rb
+++ b/state.rb
@@ -16,6 +16,19 @@ unless Array.instance_methods.include? "product"
 	end
 end
 
+class Array
+	# Confirm that this array has no duplicate elements
+	def is_uniq?
+		self == self.uniq
+	end
+end
+
+class Symbol
+	def <=>(other)
+		self.to_s <=> other.to_s
+	end
+end
+
 module UpState
 
 # Occurs when the state machine becomes inconsistent