Created
October 2, 2010 13:51
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| [:top, :middle, :bottom].product [:left, :middle, :right] | |
| # produces | |
| [[:top, :left], [:top, :middle], [:top, :right], | |
| [:middle, :left], [:middle, :middle], [:middle, :right], | |
| [:bottom, :left], [:bottom, :middle], [:bottom, :right]] |
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