Property information
x existence ends during y if and only if the time point at which x ends is before or equivalent to the time point at which y ends and after or equivalent to the point at which y starts. Formally: x existence ends during y iff ω(x) <= ω(y) and ω(x) >= α(y).
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The relations here were created based on work originally by Fabian Neuhaus and David Osumi-Sutherland. The work has not yet been vetted and errors in definitions may have occurred during transcription.