- openinterval
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open interval
n.
A set of numbers consisting of all the numbers between a pair of given numbers but not including the endpoints.
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Universalium. 2010.
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Universalium. 2010.
half-openinterval — half o·pen interval (hăfʹō pən, häfʹ ) n. A set of numbers representing all the numbers between a pair of given numbers and including either of the endpoints. * * * … Universalium