Alexander Pruss's Blog

Suppose Alice and Bob are friends, and that friendship is a fundamental relation. Consider the facts expressed by these two sentences: Ali...

Does God know that the sky is blue? That seems like a silly question. It’s not like we’re asking whether God knows future contingents, or c...

From time to time I’ve had occasion to make use of examples where someone says different things to two different interlocutors in a single u...

Alice knows that her friend Bob has no pets and no experience with birds. While recommending Bob for a birdkeeping job at a zoo and having d...

I am starting to think that one can lie without asserting a proposition. Let’s say that a counterintelligence agent tells an enemy spy that...

Suppose you receive this trustworthy report: Dr. Smith ate a banana. You are now in a position to learn this additional fact: Someone ...

I used to think that it’s quite possible that all our mental representations of the world are propositional in nature. To do that, I had to ...

Let’s suppose that the universe has a beginning and the tensed theory of propositions (which is accepted by most A-theorists) is true. Then ...

Consider this thesis: Every positive true proposition has a truthmaker. This seems plausible. But I think it is only reasonable to accep...

Suppose I am a quack and I announce: These green pills cured the king of Ruritania of lung cancer. I am lying, of course. The green pill...

If presentism and most, if not all, other versions of the A -theory are true, then propositions change in truth value. For instance, on pres...

Suppose that times are maximal consistent present-tense propositions. Then if we are to make sense of eternal recurrence—reality being exact...

One sometimes hears claims like: There are things that can be conveyed through X (poetry, novels, film, art, music, etc.) that cannot be ...

Suppose Jim says, in English, “2+2=4”. Then: What Jim said is such that it is contigent that it is true, because it is contingent that “4”...

Start with this: The last bulleted item in this post is not true. Call this token bulleted linguistic item p . Then p is, in fact, the last...

Heavy-weight Platonism explains (or grounds) something's being green by its instantiating greenness. Light-weight Platonism refrains for...

One might think the fundamental logical relations are between propositions. But I now think they are between relations (and propositions are...

Some conditional claims are lies. ("If you show this car to any mechanic in town, he'll tell you it's a great dea...

Suppose I say to Bill: "Make all of your papers be between two and four pages." Bill hands in an eight page paper for h...

I find sets to be very mysterious candidates for abstract entities. I think it's their extensionality that seems strange to m...