Though this expression, is accepted by deterministic finite automation, but if we applying pumping lemma on this expression, pumping lemma fails, also this expression have finite states but does not halt and run on continuously, the edges keep making self loops b/w the states as i tends to become larger and when tends to infinity, it does not supposed to be halt. So, for this expression DFA can be drawn but pumping lemma and TM fails. So, tell is this a regular grammar or not?
Related Questions in REGEX
- Spark .mapValues setup with multiple values
- Where do 'normal' println go in a scala jar, under Spark
- Serializing to disk and deserializing Scala objects using Pickling
- Where has "Show Type Info on Mouse Motion" gone in Intellij 14
- AbstractMethodError when mixing in trait nested in object - only when compiled and imported
- Scala POJO Aggregator Exception
- How to read in numbers from n lines into a Scala list?
- Spark pairRDD not working
- Scala Eclipse IDE compiler giving errors until "clean" is run
- How to port Slick 2.1 plain SQL queries to Slick 3.0
Related Questions in AUTOMATION
- Spark .mapValues setup with multiple values
- Where do 'normal' println go in a scala jar, under Spark
- Serializing to disk and deserializing Scala objects using Pickling
- Where has "Show Type Info on Mouse Motion" gone in Intellij 14
- AbstractMethodError when mixing in trait nested in object - only when compiled and imported
- Scala POJO Aggregator Exception
- How to read in numbers from n lines into a Scala list?
- Spark pairRDD not working
- Scala Eclipse IDE compiler giving errors until "clean" is run
- How to port Slick 2.1 plain SQL queries to Slick 3.0
Related Questions in PUMPING-LEMMA
- Spark .mapValues setup with multiple values
- Where do 'normal' println go in a scala jar, under Spark
- Serializing to disk and deserializing Scala objects using Pickling
- Where has "Show Type Info on Mouse Motion" gone in Intellij 14
- AbstractMethodError when mixing in trait nested in object - only when compiled and imported
- Scala POJO Aggregator Exception
- How to read in numbers from n lines into a Scala list?
- Spark pairRDD not working
- Scala Eclipse IDE compiler giving errors until "clean" is run
- How to port Slick 2.1 plain SQL queries to Slick 3.0
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
Popular Tags
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Actually a DFA cannot be drawn (at least a correct one that is). You're right that the pumping lemma gives a contradiction, it's easy to pump i up or down to make it non-square. If the pumping lemma shows that a language is not regular, then by definition there is no way to draw a DFA to represent that language.
The set of states is infinite, there must be one state to accept a^1, one for a^2, one for a^3 and so on. Then there's all the states between these accepting ones.. it gets messy pretty quickly. Anyways, if the pumping lemma shows a language is not regular (assuming you're applying it properly), then there is no DFA (or regular expression) to represent the language.