Practice Statement Of Rice's Theorem (8.1.3.4.1) - Undecidability and Introduction to Complexity Theory
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Statement of Rice's Theorem

Practice - Statement of Rice's Theorem

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Practice Questions

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Question 1 Easy

What is Rice's Theorem?

💡 Hint: Think about undecidability in relation to language properties.

Question 2 Easy

Give an example of a trivial property.

💡 Hint: Consider properties that apply universally.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does Rice's Theorem state?

All properties of RE languages are decidable
All non-trivial properties of RE languages are undecidable
All properties of recursive languages are undecidable

💡 Hint: Remember that non-trivial means it isn't true for all.

Question 2

Is 'L(M) is regular' a non-trivial or trivial property?

True
False

💡 Hint: Think about how regular languages work.

1 more question available

Challenge Problems

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Challenge 1 Hard

Using Rice's Theorem, argue why deciding if a TM accepts a context-free language is undecidable.

💡 Hint: Identify what makes the property non-trivial.

Challenge 2 Hard

If a TM M is known to accept a regular language, can we say anything about its behavior on an arbitrary input?

💡 Hint: Consider the implications of regular language properties.

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