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The graph given below is an example of _________(a) non-lattice poset(b) semilattice(c) partial lattice(d) bounded latticeI got this question during an interview for a job.My query is from Graphs in chapter Graphs of Discrete Mathematics

Answer»

Correct CHOICE is (a) non-lattice poset

The best I can explain: The graph is an example of non-lattice poset where B and c have common UPPER bounds d, e and F but NONE of them is the least upper bound.



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