Alexander Pruss's Blog

Yesterday , I offered a paradox about possible thoughts and pluralities of worlds. The paradox depends on a kind of recombination principle ...

These premises are plausible if the quantifiers over possible thoughts are restricted to possible non-divine thoughts and the quantifiers ov...

Here’s yet another way to formulate my omniscience argument against a theistic multiverse, a theory on which God creates infinitely concrete...

If the A-theory of time is true, then it is (metaphysically) possible that the year 2010 have the objective property P of presentness and i...

Let ψ be a non-trivial one-to-one map from all worlds to all worlds. (By non-trivial, I mean that there is a w such that ψ ( w )≠ w .) We ...

As the length increases, the possibilities for good novels initially increase. It may not be possible to write a superb novel significantl...

I've been thinking about a framework for really impossible worlds. The first framework I think of is this. A world w is a m...

In a criticism of the Pearce-Pruss account of omnipotence , Scott Hill considers an interesting impossible situation: Every necessary tr...

According to Lewis, any pair (or, more generally, plurality) of concrete (he doesn't even restrict it this way) of objects ha...

Five-dimensional universalism (hereby stipulated) holds that if f is a partially defined mapping f from worlds to regions such that (a...

Here is an argument against eternalism: If eternalism is true, times are like places. Times are not like places. So, eternalism is ...

On psychological theories of personal identity, personal identity is constituted by diachronic psychological relations, such as me...

If presentism is true, then right now, call it t 2 , the proposition B that Bucephalus exists is false, but it once was true, namel...

According to the best A-theories (i.e., those that accept an Aristotelian view of propositions as changing in truth value), there ...

If you're a B-theorist, it is no puzzle that the past can't change. It can't change because we are always in the same wo...

It seems that the answer has to be negative—isn't the idea utterly absurd? But suppose that an A-theory is true and Fred is a ...

Haecceities are individual essences, even of non-existent beings. Necessarily, entity exists iff its haecceity is instantiated. ...