Construct a pushdown automaton that accepts the following language. In each of the parts, first describe the algorithm performed by your automaton in plain English. Then draw a transition diagram.   L = {#an1#an2# ···#ank# |at least two of the numbers ni are equal}.

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Predicates

A predicate is a function defined with set of variables, which returns the result True or False. The output of a predicate is a Boolean value as a response when given a set of parameters: