Interobang spotted!! Nice talk, it made a lot of things clearer, thank you.

There is something incredibly daoist about boolean logic and equality expressed as combinators

@marcfoster715

Жыл бұрын

Which is probably why Raymond Smullyan loved combinatory logic.

Wow! That is one awesome talk!

great talk, thanks to the author.

Once thought an idiot bird, later was found to be fond of all other birds and itself. 🥰

Can someone please explain to me λf.ff. In particular the ff after the period. Can this be reduced and if so, how? I don't understand how to understand this 😸 (λf.ff)λa.a = (λa.a)λa.a .. i get it but i don't get it.

@Coolbassist

Жыл бұрын

λf.ff takes a function f, and applies f to f. You're correct in that (λf.ff)λa.a = (λa.a)λa.a. λa.a is the identity function, which we can call I. So (λf.ff)I is equal to II, which is the identity function applied to the identity function. Which returns just the identity function, I.

curious how this works for SKI commentators?

Google changes people. Hmm or maybe its just age.😶

2 жыл бұрын

in what way? i only watched the older video

@caosed4991

2 жыл бұрын

@ i honestly don't remember why I made that comment, but i think it was because in this video it looks like they talk in a more lower level language? If that makes sense. In this video they are talking in javascript, unlike the other video, where they were talking in math more. And I don't think that's a great thing. Just a personal opinion.

@glebec

Жыл бұрын

LOL, it could just be that I was jet lagged from flying from NYC to Helsinki the night before. 😅