Classifications of parallel structures
explain to me the Classifications of parallel structures
Explain DFA diagrams and DFA operation in brief ?
How can we characterize DFA languages ?
Define the term computation in TOC ?
Let REGEXP be the language of valid regular expressions over {a, b}. That is, REGEXP is the set of all strings over the symbols Σ= {a, b, (,), U,*, ^} that are valid regular expressions. For example, the string “a (a U b)" is in REGEXP, whereas the string
Give an algorithm that, given a grammar G = (V, Σ, R, S), decides whether the grammar G can derive the empty string.
Describe the theorem that a language L is recognized by a DFA if and only if L is illustrated by a regular expression.
Define the term Regular expressions ?
State the Formal desrciption of DFA operation ?
Proof the theorem that the class of regular languages is closed under union; that is, if L1 is recognized by a NFA and L2 is recognized by a NFA, then L1 υ L2 is recognized by a NFA as well.
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