c840f7c8-4045-4b08-aac8-495c4f6e21bd 147 B

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  1. id: c840f7c8-4045-4b08-aac8-495c4f6e21bd
  2. url: http://matt.might.net/articles/writing-an-interpreter-substitution-denotational-big-step-small-step/