In mathematics, Kruskal's tree theorem states that the set of finite trees over a well-quasi-ordered set of labels is itself well-quasi-ordered under homeomorphic embedding.
Tree was a controversial 24-metre high inflatable sculpture by the artist Paul McCarthy that was briefly installed in the Place Vendôme in Paris in October 2014 as part of a Paris International Contemporary Art Fair exhibition called "Hors les murs".
In descriptive set theory, a tree on a set X {\displaystyle X} is a collection of finite sequences of elements of X {\displaystyle X} such that every prefix of a sequence in the collection also belongs to the collection.
The Tree is a 2001 Singaporean supernatural-mystery drama film directed by Daisy Chan, starring Zoe Tay, Francis Ng, Phyllis Quek, Tse Kwan Ho and Deng Mao Hui.
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