iff there exists a sequence x = x0,x1,…, xn = y
such that n > 0 and xi R xi+1, i = 0,1,2,…, n–1
It follows from the transitivity property that if x R y then x R* y
and that R is a subset of R*.
Reflexive closure is similar to transitive closure but includes the possibility that n = 0. Transitive and reflexive closures play important roles in parsing and compiling techniques and in finding paths in graphs.
"transitive closure." A Dictionary of Computing. . Encyclopedia.com. (August 19, 2018). http://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/transitive-closure
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