The Incredible Proof Machine (2016)

I wish I'd have had stuff like this when I was studying logic. It would sure make learning the subject more interesting especially if one's not a born logician (wading through reams of logic can get a bit tedious).

Related:<p><i>The Incredible Proof Machine (2016)</i> - <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=19539388" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=19539388</a> - April 2019 (16 comments)

A proof machine I find incredible is no proof machine at all, but just an assertion machine.

I found the combinators in the &quot;Simply typed lambda calculus&quot; section a nice touch...

On iPad, I can’t drag logic blocks out of the corral on the left into the working area.