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New posts in formal-languages

What is the concatenation of this language with itself?

When a keyword means different things in different contexts, is that an example of context sensitivity?

Prove that this language is undecidable

What is a formal programming language?

Find a non-deterministic CFL whose reverse is deterministic

formal-languages

LR(1) - Items, Look Ahead

What class of language can Perl regular expressions be used against?

Z3: express linear algebra properties

Does logical AND and NOT exists in ANTLR?

Why can't I specify the storage class for formal parameters of a function?

Writing a formal language parser with Lisp

Distance between regular expression

To make sure: Pumping lemma for infinite regular languages only?

Reading numbers as strings

An infinite language can't be regular? What is a finite language?

Checking if a string consists of balanced parenthesis

How to convert NFA to Regular Expression

regex formal-languages nfa

Is L = {a^n b^m | n>m} a regular or irregular language?

What is the difference between recursive and recursively enumerable languages