There eternally exists a cosmic set of three{ 3 } ergo there exists a duality irrespective of the geometry used to representative of this, that other and no this or that or other. More on that later below at bottom of page.
However, first, lets understand that any closed, 2D{ area } geometry ex circle{ ultra-high frequency polygon } or polygon has a at minimum two or three kinds of duality{ twoness };
Inside-outside ergo macro-micro
>IN< { convergent-divergent }
<OUT>
Concave-convex
(
Here is set of four 3D kinds of twoness{ duality };
...."Fig. 1073.10 Cosmic Inherency: Four Kinds of Twoness:
Spin twoness is additive.
Duality twoness (concave-convex) is multiplicative.
The spin twoness and duality twoness together comprise a third relationship twoness.
The fourth twoness is comprised of the macro-micro (insideness and outsideness) twoness.
http://www.rwgrayprojects.com/synerg...igs/f7310.html
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Now for the eternally existent cosmic set of three;
1}
metaphysical-1, mind/intellect/concept ex concept of Space, God. Universe, Geometry{ circle-polygon } etc
----line-of-demarcation------------------
2} metaphysical-2, macro-infinite, non-occupied space, that, embraces the following,
3}
occupied space Universe aka
Uni-
V-
erse
.....3a2} spirit-2, fermions and bosons aka observed{ quantised } physical/energy i.e. observed time/reality/frequency /\/\/ and is commonly associated with a sine-wave pattern ^v^v,
.....3a3} spirit-3{ metaphyscial-3 } ultra-micro gravity ( ),
.....3a4} spirit-4{ metaphysical-4 } ultra-micro dark energy )(.
#3 above has its on set of cosmic threeness.
Duality exists within the set of threeness.
r6