Alexander Pruss's Blog

Monday, February 2, 2026

Anselm and Brouwer

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I was reading Anselm’s replies to Gaunilo, and was struck by this: Furthermore: if it can be conceived at all, it must exist. For no one w...
Thursday, January 29, 2026

Does everything in time change?

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Over the last two days, I’ve been thinking critically about Aquinas’ First Way. Central to my thinking, and especially yesterday’s post , wa...
6 comments:

Gale's criticism of Stump and Kretzmann's ET-simultaneity

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Stump and Kretzmann give three main concepts of simultaneity in their famous paper : T-simultaneity between items in time E-simultaneity ...
Wednesday, January 28, 2026

Does it follow from van Inwagen's answer to the Special Composition Question that all complex things are alive?

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The view that all objects are either living or simple appears to be a consequence of van Inwagen’s answer to the special composition questio...

Proper parts and dependence

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Consider this initially plausible thesis: If x has a proper part, and all of x ’s proper parts depend on y , then x depends on y . Add...
3 comments:

How do we get to an unmoved mover?

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I just realized that there is a difficulty in Aquinas’ First Way that I think hasn’t been noted, which builds on the difficulty noted yester...
4 comments:
Tuesday, January 27, 2026

An easily patched hole in the First Way

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In his First Way, Aquinas argues that as we trace back the sequence of movers from effect to cause, we get to a first unmoved mover, and thi...
2 comments:

Explanatory principlism

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There are three views about ultimate explanations of reality: Nihilism: There is no ultimate explanation of reality. Onticism: The ultima...
1 comment:
Tuesday, January 20, 2026

Punishment and presentism

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This seems a bit plausible: It is unjust to punish someone for a feature that is not intrinsic to them. If presentism is true, then havin...
1 comment:
Wednesday, January 7, 2026

Old Polish Almond Torte

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In my family, when someone (including me) has a birthday, they choose a type of cake, and then I bake it, often with the help of one or more...
4 comments:

Fine moral distinctions

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I find myself sometimes troubled by narrow moral distinctions in the Christian, and sometimes more specifically Catholic, tradition. Lying i...
1 comment:
Monday, December 29, 2025

Permissivism about lying

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I am an absolutist about lying: I think it’s always wrong to lie. But even if I were a permissivist about lying, I would think that there ar...
1 comment:
Friday, December 26, 2025

Dishes of food

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Let’s say I am eating a dish, say a soup, a salad or a sandwich. At some point there is half-eaten dish, and finally all that’s left are som...
1 comment:
Monday, December 15, 2025

God and growing block

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On the growing block theory of time, if God is in time, God grows. God doesn’t grow. So, God is not time or the growing block theory is n...
5 comments:

Divine timelessness

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This is probably the simplest argument for the timelessness of God, and somehow I’ve missed out on it in the past: God does not change. C...
3 comments:
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About Me

Alexander R Pruss
I am a philosopher at Baylor University. This blog, however, does not purport to express in any way the opinions of Baylor University. Amateur science and technology work should not be taken to be approved by Baylor University. Use all information at your own risk.
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