L16: Unrecognizable Languages and Reductions

Proof that there are languages which are not even recognizable. Introduction to reductions.

[@chongsun7872]

I am really glad he talked about the tuition behind a language not being recognizable at 19:55

[@liquidlimb]

Great Lecture! Easily understandable.

[@MrChristofferj1]

This was a great lecture! Watch it if you have problems in this area!

[@basantsub1234]

Great Lecture. Wished my professor expalined like him.

[@dineshjagai]

Great lecture!

[@hyphenpointhyphen]

Thanks a lot

[@owlattack1971]

YEAH!