Re: Zen: Dees - Redundant

Robert Owen (
Mon, 20 Sep 1999 21:34:42 -0400

Joe E Dees wrote:

> Neither this, nor that, nor [neither this nor that], nor [both this and
> that].

Not required. The Boolean transform of nor [both this and that] which is equivalent to not[this and that] is [not-this or not-that]. But this is the inclusive OR, so it includes as a true case [not-this AND not-that]. But this readily transforms into not[this OR that] or neither this nor that, which was explicitly stated.

Robert M. Owen
The Orion Institute
57 W. Morgan Street
Brevard, NC 28712-3659 USA