Question: a ) Let S = { ab bb } and T = { ab bb bbbb } . Show that S * = T *

a) Let S ={ab bb} and T ={ab bb bbbb}. Show that S*=T*.
b) Let S ={ab bb} and T ={ ab bb bbb}. Show that S*!=T* but that S* T*.
c) What principle does this illustrate?

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