'boolean' here means that 3!:0 returns 1; the values are restricted to {0,1}. Details at

http://www.jsoftware.com/jwiki/Vocabulary/SpecialCombinations#Assignments_In_Place_.28AIP.29


Henry Rich

On 8/7/2014 8:42 AM, Raul Miller wrote:
I think http://jsoftware.com/help/release/iamend.htm might be relevant.

Note also that in this case I'm not sure if "boolean" really means
"non-negative integer". (If I understand properly: in George Boole's
arithmetic these were equivalent, and some of the details here suggest that
that original meaning might be relevant here. It's a confusing topic though
because it has become popular, depending on context, to assert that
"boolean" can only refer to the values 0 and 1 and also that "boolean"
cannot be used to refer to the values 0 and 1.)

Thanks,

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