What is the meaning of decidable?

What is the meaning of decidable?

capable of being decided
Definition of decidable : capable of being decided specifically : capable of being decided as following or not following from the axioms of a logical system Was logic complete …?

What is the meaning of Undecidability?

undecidability in British English (ˌʌndɪˌsaɪdəˈbɪlɪtɪ) the quality of being undecidable. Collins English Dictionary.

Is decidable a real word?

capable of being decided. Logic.

Which of the following is an undecidable problem?

Which of the following problems is undecidable? Deciding if a given context-free grammar is ambiguous. Deciding if a given string is generated by a given context-free grammar. Deciding if the language generated by a given context-free grammar is empty.

Is Undecidable a real word?

adjective. 1Not able to be firmly established or refuted. 1.1Logic (of a proposition or theorem) not able to be proved or disproved.

Which among the following are undecidable theories?

3. Which among the following are undecidable theories? Explanation: Tarski and Mostowski in 1949, established that the first order theory of natural numbers with addition, multiplication, and equality is an undecidable theory.

What is an undecidable language?

For an undecidable language, there is no Turing Machine which accepts the language and makes a decision for every input string w (TM can make decision for some input string though). A decision problem P is called “undecidable” if the language L of all yes instances to P is not decidable.

What is an undecidable problem in computer science?

An undecidable problem is one that should give a “yes” or “no” answer, but yet no algorithm exists that can answer correctly on all inputs.

What is diagonalization language?

Answers. The Diagonalization Language. 1. Reducing One Problem to Another. Suppose we have an algorithm A to transform instances of one problem P1 to instances of another problem P2 in such a way that a string w is in P1 if and only if the transformed string A(w) is in P2.

Which of the following are undecidable theories?

Which type of language pushdown automata accept?

context-free languages
Pushdown automata accept context-free languages, which include the set of regular languages. The language that describes strings that have matching parentheses is a context-free language.