Alexander Pruss's Blog

For the proof of Goedel's incompleteness theorem and in work on the Liar Paradox it is usual to use the Diagonal Lemma to secure self-r...

My previous post on atonement implicitly identified one constraint ("must") and one desideratum ("should") fo...

I was once rather amused by an undergraduate in my Philosophy of Love and Sex class who complained that the sexual ethics material...

It's noon. You and two other innocents, A and B , are imprisoned by a dictator in separate blast-proof cells. All the inno...

Every orthodox Christian agrees that: Salvation occurs at least in part because of Christ's death on the cross. The "a...

An agent is omnirational provided that whenever he makes a decision, he is impressed by all the unexcluded reasons that there...

Consider this thesis: Only natural facts explain contingent truths. (So if there are non-natural facts, they are explanatorily...

In the chapter on deviant logic in his philosophy of logic book, Quine makes the claim that: The deviant logician changes the subject rath...

The material conditional account of indicatives is that "If s , then u " is true if and only if s is false or u is true o...

A standard example in the literature of Frankfurt cases is where a guy is deciding whom to vote for. If he isn't going to freely...

Here is one lesson one might take away from Frankfurt cases: Causal necessitation is not the same thing as logical necessitation b...

There is a sense in Aristotelian metaphysics that "there are only substances". They are all there is a focal sense. Yet i...

Sometimes one wants a word like "un-negation" or "de-negation"—a word for the sentence " s " as it relates t...

I had to index my modality book , so I wrote a little perl script to help me (it also needs the Roman module from CPAN ) and it generated t...

The Anscombe Centre is running what looks to be a really good conference on Double Effect [PDF] on Saturday, February 19th, 9:30-17:30 GMT....