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@@ -1500,7 +1500,7 @@ Rules are stored rather simply, in a list of cons cells, with the ~CAR~ being th
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(defvar *rules* '())
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#+END_SRC
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-** WORKING Rules [0/9]
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+** WORKING Rules [1/9]
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:PROPERTIES:
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:CREATED: <2016-06-13 Mon 22:52>
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:ID: fdcebadd-b53d-4f59-99a4-4a3782e017a2
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@@ -1521,12 +1521,15 @@ The process of symbolic derivation is carried out through rules. These are defi
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<<sd-exponentials-and-logarithmics>>
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#+END_SRC
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-*** TODO Numbers
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+*** DONE Numbers
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+CLOSED: [2016-08-19 Fri 17:07]
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:PROPERTIES:
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:CREATED: <2016-06-13 Mon 23:18>
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:ID: bb1f9175-2e86-43a3-94b3-9467d233539c
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:END:
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+Numbers are perhaps one of the simplest rules to define, ignore everything and simply return 0, which is, by definition, the derivative of any bare number.
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+
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#+Caption: Numbers
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#+Name: sd-numbers
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#+BEGIN_SRC lisp
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