Properties are considered independent if none logically implies the other (or its opposite).
Another way of putting it is that on the right, the most descriptive good solution is of the form "[property 1] AND [property 2] vs. neither".
Adjacent-numbered pages: BP823 BP824 BP825 BP826 BP827  *  BP829 BP830 BP831 BP832 BP833
nice, meta (see left/right), miniproblems, creativeexamples, assumesfamiliarity, structure
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Aaron David Fairbanks