@Plinz For a proposition A, the four sides are A, Not A, A and Not A, Neither A nor Not A. I wrote a blog about this http://the-redpill.blogspot.de/2015/11/the-four-sided-negation-tool-for.html …
@vakibs Since truth and false are indistinguishable at confidence 0, ternary logic uses false, true and unknown. https://en.wikipedia.org/wiki/Three-valued_logic …
10:00 AM - 14 Dec 2015
from Cambridge, MA
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