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abstraction > hypothesis > theory > unified theory > string theory > open string |
open string | ||||
subject | fact |
open string | has definition A type of string with two free ends. | |
is a kind of string theory | ||
theory | has validity correct or incorrect with caveats | |
has author or reasearch group | ||
has domain a field of research | ||
has date or a range of dates for which the theory was active |