Logical Argumentation

It’s a promising app, but it currently makes very big jumps early on without adequate explanation. From basic truth tables, it jumps right to the much more complicated if p then q, ~q, therefore ~p. The app just declares you have errors without offering any hints or guidance. Working from established truth tables online, I still struggle to pass this exercise—I did once, but the accepted answer didn’t make sense to me, and I haven’t managed to repeat that success, so I clearly haven’t learned. The developer likely expects users to rely on the built-in AI tutor, but that’s not available if you’re using the ad-powered version. If learning and progress depend on an AI tutor, anyway, I’m not sure why I wouldn’t just have my own LLM tutor me without the app. Also, a minor annoyance, but progress isn’t saved at all without a subscription, even though I’m viewing ads. I’ll keep an eye on this app because it does look promising.