Alexander Pruss's Blog

I find myself going back and forth between substantivalism and relationalism about spacetime. On a substantivalist theory, the points of spa...

Here is a valid argument: Matter survives substantial change. It is not possible that there exist two substances of the same species with...

According to Aristotelianism, the distinctness of two items of the same species is grounded in the distinctness of their matter. This had be...

Here’s a valid argument with plausible premises: A finite being has finite value. Any being with finite value may be permissibly sacrific...

Here are one way of believing in a totally sharp world: Epistemicism: All meaningful sentences have a definite truth value, but sometimes ...

For a long time I have thought that the identification of God as the Alpha and the Omega in the Book of Revelation is very Aristotelian: God...

I used to think that: x is a substance just in case  < x exists > is not grounded in any fact about any other entity other than x...

As part of an argument against the Principle of Double Effect, Thomson argued that if one thinks that it is permissible to redirect a trolle...

We have an open area full professor position in our Department. If you qualify, I encourage you to apply. If you know someone who qualifies...

Aquinas says that when a starving person takes food needed for survival from someone who has too much, the act is a case of taking but not s...

You need to lay off Alice or Bob, or else the company goes broke. For private reasons, you dislike Bob and want to see him suffer. What shou...

My ten year old and I developed a roll of 35mm film that I shot over the past year in my grandfather's Voigtlander Vito I camera. I'...

I will give a really, really wacky version of quantum mechanics as a proof of concept that if one wants, one can have all of the following: ...

We live in a deeply epistemically divided society, with lots of different views, including on some of the most important things. Say that t...

Suppose the members of a committee individually assign credences or probabilities to a bunch of propositions—maybe propositions about climat...