'Closure properties' presentation slideshows

Can Statistical Zero-Knowledge be made Non-Interactive?

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Adding Nesting Structure to Words

Adding Nesting Structure to Words. Rajeev Alur University of Pennsylvania Joint work with P. Madhusudan (UIUC). DLT, June 2006. Software Model Checking. Research challenges Search algorithms Abstraction Static analysis Refinement Expressive specs. Program. Specification. Abstractor.

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Regular Language

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COSC 3340: Introduction to Theory of Computation

COSC 3340: Introduction to Theory of Computation. University of Houston Dr. Verma Lecture 3. Closure properties of Regular Languages. Regular languages are closed under: Union Notation: ? Intersection Notation: ? L 1 ? L 2 is regular if L 1 and L 2 are regular .

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Lecture 3: Closure Properties & Regular Expressions

Lecture 3: Closure Properties & Regular Expressions. Jim Hook Tim Sheard Portland State University. Last Time. Defined DFA, regular languages Defined NFA, showed equivalent to DFA Showed closure properties of Regular Languages. Why do we care about closure properties?.

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Equivalence of PDA, CFG

Equivalence of PDA, CFG. Conversion of CFG to PDA Conversion of PDA to CFG. Overview. When we talked about closure properties of regular languages, it was useful to be able to jump between RE and DFA representations.

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Closure properties for regular languages

Closure properties for regular languages. If L and M are Regular, so are:. Closure under intersection. Decision Problems for Regular Languages. From epsilon NFA to DFA. How can we decide whether the language accepted by a DFA is finite or infinite?. emptyness. Equivalence and minimization.

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Chapter 8

Chapter 8. PROPERTIES OF CONTEXT-FREE LANGUAGES. Learning Objectives At the conclusion of the chapter, the student will be able to:. Apply the pumping lemma to show that a language is not context-free State the closure properties applicable to context-free languages

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Closure properties for CFLs.

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Closure Properties of Decidability

Closure Properties of Decidability. Lecture 28 Section 3.2 Fri, Oct 26, 2007. Closure Properties of Decidable Languages. The class of decidable languages is closed under Union Intersection Concatenation Complementation Star. Closure Under Union.

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COSC 3340: Introduction to Theory of Computation

COSC 3340: Introduction to Theory of Computation. University of Houston Dr. Verma Lecture 10. Chomsky Normal Form (CNF). Rules of CFG G are in one of two forms: (i) A ? a (ii) A ? BC, B ? S and C ? S + Only one rule of the form S ? ? is allowed if ? in L(G).

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Lecture 8 From NFA to Regular Language

Lecture 8 From NFA to Regular Language. Induction on k= # of states other than initial and final states. K=0. a. a*. b. c*a(d+bc*a)*. a. c. d. k > 1. ac*e. c. ac*d. a. e. bc*e. d. b. bc*d. Example 1. 0. 1. 0 +10. 1. 0. 0. Why?. 10. 0. 1. 1. (0+10)*0(1+10(0+10)*0)*.

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NFA Closure Properties

NFA Closure Properties. NFAs also have closure properties. We have given constructions for showing that DFAs are closed under Complement Intersection Difference Union We will now establish that NFAs are closed under Reversal Kleene star Concatenation. Reversal of L -NFAs.

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