Sound arguments and rationally convincing arguments
I've read many times and places that an argument is sound iff 1. The argument is valid. 2. All the premises of the argument are true. [1] Let's call this…
Stone-paradox – revised and explained
I posted this text a long time ago in Danish and I translated it and used it on the forum. I think I forgot to post the English version here…
XKCD’s NP-Complete
Opening paragraph: "I was reading XKCD along with a friend and we came across a comic. He wanted to continue reading but I wanted to solve it! [...]" Extensive mathematical…
Induction and a probability formula
I thought about how induction relates to the probability of something, and I came up with this formula. Induction is here taken as repeated confirming observations of some theory or…
Some different deterministic theses
Determinism is a fairly broad thesis, and some formulations of it does not "work" with Swartz's regularity theory. Below I have outlined some different deterministic theses. Minimal Causal Determinism (MCD):…
Worldviews and mistaken beliefs, a paradox
Here's a little paradox that I've come across while thinking. It's about worldviews and knowing that at least one thing I currently believe to be true is actually false. The…
Meaning, propositions, category errors
I quote Swartz: "What sort of thing is my pen's being on my desk? We are inclined to say such things as "My pen's being on my desk is true,"…
Modal logic formalization, multiple kinds of possibilities
Formatting requires a PDF file. modal-logic-formalization
The recent controversy about Hume's Maxim against justified belief in miracles
Contrary to what I normally do I'm not going to argue anything in this article. My goal is to spread useful information, mostly in form of links about Hume's maxim.…
The term non-sequitur
As Wikipedia notes,i the term is used in everyday speech to deny a conditional (if-then statement), and it is also used in logic to mean an invalid argument. This together…
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