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own doubt
sudharshan
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Theory of Computation
Oct 27, 2018
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can we say that every regular language is a DCFL?
theory-of-computation
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sudharshan
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Theory of Computation
Oct 27, 2018
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sudharshan
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Mk Utkarsh
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Oct 27, 2018
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yes
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Utkarsh Joshi
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Oct 27, 2018
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Why do you think that every regular language is a DCFL?
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kumar.dilip
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Oct 27, 2018
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Why Not???
Give any example Which is Regular But not DCFL.
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Utkarsh Joshi
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Oct 27, 2018
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Oh! I interpreted in a reverse way!
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kumar.dilip
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Oct 27, 2018
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Me too, But for this type Question remember Hierarchy.
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the answer is given that the statement 2 is correct? But how… even if we create a DCFL by final state condition like : q(b,z0| z0)-→ final state ,q(null,a|z0) ----→ final state [Thats what was mentioned in the video solution] it will accept the string aab
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Vikas Verma
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Theory of Computation
Aug 12, 2018
379
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Curiousity
In an intersection between a regular language and a DCFL, we always tend to promote regular language to DCFL and say that the result will be intersection between DCFL and DCFL but since DCFLs are not closed under intersection we say the result will be a CFL. But ... which is not DCFL Can you write a language which is an intersection between a DCFL and a regular language but not a DCFL.
Vikas Verma
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Aug 12, 2018
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Rahul Jain25
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Feb 7, 2017
828
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Decidablity+DCFL
I) L-R where L is DCFl and R is regular. Is L-R also DCFL decidable or not??? II)If L1 is reducible to L2 and L2 is non-RE then L1 is also Non-RE??? III) If L1 is reducible to L2 and L1 is non-RE then L2 is also non-RE??
Rahul Jain25
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Theory of Computation
Feb 7, 2017
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Rahul Jain25
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theory-of-computation
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