jedishrfu's latest activity

Try looking for arithmetic systems without the induction axiom but based on the other three.

When Stillwell says there are alien objects, he means the objects that mysteriously appear when you strengthen an axiom. Applying some...

It looks like we have reached the utter boundaries of discussion on this topic and so it's a good time to close it. The PF Mentor...

Please read our site guidelines regarding homework requests. We do not provide answers, only hints. But here's the big one: You must...

Tom Swift Sr. or Tom Swift Jr.? :cool: When I was in elementary school, my parents bought me some of the Tom Swift Jr. series which...

I don't remember which it was. I was in 3rd and 4th grade and titles like that didn't register. —— @BillTre It was Tom Swift Jr. I...

One could consider a prion virus that alters the AI in some way. Cruetzfeld Jacob (mad cow) disease was traced to prions. Maybe the AI...

@Astronuc, your experience in school is not uncommon. I had a friend who completed all of high school math by eighth grade. The school...

I remember the New Zealand disaster where a tour group disembarked on an island on their way to the rum of a volcano and it erupted...

Yeah me too! Learned the latest tech from this show. One good thing in the article, he helped the Internet Archive preserve all episodes.

I didn't recognize his name, but when I clicked into the link I definitely recognize his face. I think I watched a number of his...

https://arstechnica.com/gadgets/2026/01/stewart-cheifet-pbs-host-who-chronicled-the-pc-revolution-dies-at-87/

Congratulations to current and past winners of these awards. This is what keeps PhysicsForums going. "And now back to our regularly...

Based on the sketch, it seems that ##\theta## is the angle of cylindrical polar coordinates, not spherical polar coordinates. I agree...

Hi, may I remind you of the Homework Help Guidelines for Students and Helpers and ask for a few clarifications ? I spent some time...