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@@ -327,7 +327,7 @@ Another utility macro is ~when-classified-as~, which takes a ~classification~, a
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,@body))
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,@body))
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#+END_SRC
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#+END_SRC
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-** WORKING Classifications [4/13]
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+** WORKING Classifications [5/13]
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:PROPERTIES:
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:PROPERTIES:
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:CREATED: <2016-05-02 Mon 13:56>
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:CREATED: <2016-05-02 Mon 13:56>
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:ID: dcce4a6b-1b2d-4638-a82b-0c4917b0698a
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:ID: dcce4a6b-1b2d-4638-a82b-0c4917b0698a
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@@ -431,13 +431,14 @@ When an expression is non-atomic, and the first element is the symbol ~+~, it is
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(eq '+ (first expression))))
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(eq '+ (first expression))))
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#+END_SRC
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#+END_SRC
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-*** TODO Subtractive
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+*** DONE Subtractive
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+CLOSED: [2016-06-15 Wed 00:06]
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:PROPERTIES:
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:PROPERTIES:
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:CREATED: <2016-05-02 Mon 14:26>
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:CREATED: <2016-05-02 Mon 14:26>
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:ID: c59d086f-2f49-485a-8f96-57d85e774f60
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:ID: c59d086f-2f49-485a-8f96-57d85e774f60
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:END:
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:END:
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-# Check to see whether a given expression is a subtractive by ensuring it is non-atomic and the first element is the symbol ~-~.
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+A non-atomic expression for which the first element is the symbol ~-~ is a subtractive expression.
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#+Caption: Classify Subtractives
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#+Caption: Classify Subtractives
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#+Name: et-classify-subtractives
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#+Name: et-classify-subtractives
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