topher6345 · July 9, 2016 02:03
diff --git a/power_set.rb b/power_set.rb
 require 'set'
 class Set
  def power_set
    make_permutation = proc { |n| self.to_a.permutation(n).to_a.map(&:to_set).to_set}
    Set.new([Set.new([]),(1..self.size).map(&make_permutation)])
  end
 end

 Set.new([1,2,3]).power_set
	require 'set'
	class Set
	def power_set
	make_permutation = proc { \|n\| self.to_a.permutation(n).to_a.map(&:to_set).to_set}
	Set.new([Set.new([]),(1..self.size).map(&make_permutation)])
	end
	end

	Set.new([1,2,3]).power_set