Regular Languages Are Closed Under 'Avoids' – Example from Sipser 1.70 📚

Here we give an example of the fact that regular languages are closed under "avoids". The main video proving this is here: https://www.youtube.com/watch?v=y86jpV5tn_0 #easytheory #nfa #dfa #gate #gateconcept #theoryofcomputing #turingmachine #nfatoregex #cfg #pda #undecidable #ricestheorem Contribute: Patreon: https://www.patreon.com/easytheory Discord: https://discord.gg/SD4U3hs Live Streaming (Sundays 2PM GMT, 2 hours): Twitch: https://www.twitch.tv/easytheory (Youtube also) Mixer: https://mixer.com/easytheory Social Media: Facebook Page: https://www.facebook.com/easytheory/ Facebook group: https://www.facebook.com/groups/easytheory/ Twitter: https://twitter.com/EasyTheory Merch: Language Hierarchy Apparel: https://teespring.com/language-hierarchy?pid=2&cid=2122 Pumping Lemma Apparel: https://teespring.com/pumping-lemma-for-regular-lang If you like this content, please consider subscribing to my channel: https://www.youtube.com/channel/UC3VY6RTXegnoSD_q446oBdg?sub_confirmation=1 Ultimate Supporters: (none) Diamond Supporters: (none) Platinum Supporters: (none) Gold Supporters: Anonymous (x1), Micah Wood, Ben Pritchard Silver Supporters: Timmy Gy Supporters: Yash Singhal ▶ADDITIONAL QUESTIONS◀ 1. Are there other interesting examples? ▶SEND ME THEORY QUESTIONS◀ ryan.e.dougherty@icloud.com ▶ABOUT ME◀ I am a professor of Computer Science, and am passionate about CS theory. I have taught over 12 courses at two different universities, including several sections of undergraduate and graduate theory-level classes.