Question: (c) There exist three non-empty sets X,Y and Z such that XY,XZ, and YZ. If you think that it is true, give an example. If

(c) There exist three non-empty sets X,Y and Z such that

(c) There exist three non-empty sets X,Y and Z such that XY,XZ, and YZ. If you think that it is true, give an example. If not, disprove it

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