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The distiction X/not-X is not binary. "Not-X" is a spectrum of things. For example, there is "facing due east" and "not facing due east". In most common terms, there are 359 other directions to face that would be "not facing due east" (one for each degree on a circle). Of course, 360° in a circle is just a common convention. A circle can be divided much more finely than that; and we haven't even talked about facing up or down. "Not-X" is a spectrum of possibilities and not de facto binary. |