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Which of the following sets are well ordered under the specified operation? Justify your answers. Explain...

Which of the following sets are well ordered under the specified operation? Justify your answers. Explain why they are/ are not well ordered.
(a)R​+​ U {0}, <
(b)[0,1], >
(c)The set of integers divisible by 5, <
(d){ {0,1,..., n} | n​∈​N}, ⊆

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