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Logic

SCORING THE BURKE – BOWMAN DEBATE – Bowman 1

I take it the purpose of the debate is whether or not “the” doctrine of the Trinity is derivable from the Bible. What is this doctrine, exactly? The burden falls on Bowman to be clear about just what doctrine is in view; he’s making the positive case. Here’s what he says: 1. There is one (true, living) God, identified as the Creator. 2. This one… Read More »SCORING THE BURKE – BOWMAN DEBATE – Bowman 1

Richard of St. Victor’s De Trinitate, Ch. 25 (Dale)

At long last, we’ve reached the 25th and last chapter of book three of Richard of St. Victor’s De Trinitate! (Here are the other Richard-related posts here @ trinities.)

Richard starts off with the point that for the Persons of the Trinity, unlike the case of any other persons, there is “individuality without plurality” – each is what it is without any plurality of any kind – and “unity without inequality” – I’m not sure what he means by this second phrase. (p. 396)

In contrast, any other person, such as you or me, can be “unequal to himself”, in that we can become greater or lesser over time. (e.g. I’m smarter and morally better now than when I was 14.) And persons like us have multiple properties (we’re not simple). (p. 396) And of a human person, say Barak Obama, we can say that “his power alone is dissimilar to itself… [since] one thing is easy for him, another is difficult and a third is impossible.” (p. 397)

Then he says, “one and the same nature… in one respect is less, in another it is greater, and [so is]… dissimilar and unequal to itself.” (p. 397) So, the same point he made about persons, can also be made about natures. Thus,Read More »Richard of St. Victor’s De Trinitate, Ch. 25 (Dale)

SCORING THE BURKE – BOWMAN DEBATE – Burke 1

In round 1, Burke explains that he’s a biblical unitarian, not a “rationalist” or “universalist” unitarian. Further, he confesses that: Jesus Christ is the Son of God, but not God himself and The Holy Spirit is the power of God, but not God himself. Further, The Bible is the inspired Word of God and the sole authoritative source of Christian doctrine and practice. He neither… Read More »SCORING THE BURKE – BOWMAN DEBATE – Burke 1

Scoring the Burke – Bowman Debate – Intro

Over at Parchment and Pen, there’s a six week, six-installment debate starting over “the” doctrine of the Trinity. That is, what I’ve elsewhere called the orthodox formulas – that each Person “is” God, that there’s only one god, and that the three Persons differ. Here at trinities, we’ll offer summaries and philosophical commentary on each round. Feel free to weigh in with your views on… Read More »Scoring the Burke – Bowman Debate – Intro

Richard of St. Victor’s De Trinitate, Ch. 24 (Dale)

In chapter 24, Richard says that

Certainly one and the same substance is not something greater or lesser, better or worse than itself. Therefore, [there are no inequalities among members of the Trinity] since one and the same substance is certainly in each. …for this reason any two persons [in the Trinity] will not be something greater or better than any one person alone; nor will all three taken together be more [great?] than any two or any one alone by himself… (p. 396)

I take it that in the first sentence here that by “substance” he’s referring to the divine nature, saying that it can’t be greater than itself. That’s hard to argue with. He then argues that no person can be greater than any other. There’s an assumption here that greatness is solely a function of a thing’s nature. I’m not sure why we should accept that. Why not other intrinsic properties as well? One might think, e.g. it is greater to be the Father than it is to be the Son, hence even though they share the divine nature, one might think that the Father is greater than the Son. The inference from X and Y have the same substance to X and Y are the same in greatness, seems invalid. But if we make a valid argument, by adding the premise that greatness is a function solely of essence, we have valid argument, but then, Read More »Richard of St. Victor’s De Trinitate, Ch. 24 (Dale)

Richard of St. Victor’s De Trinitate, Ch. 23

Now, to resume our drawn out and often-stalled series on Richard of St. Victor, in which we blog through the entirety of book III of his De Trinitate (On the Trinity), in which he famously / notoriously argues for the Trinity from reason alone. These chapters, like many preceding ones, are too compressed, so I’ll try to unpack them for us.

In chapter 23, Richard says that between the members of the Trinity “there seems to be more identity [sameness] than equality.” (p. 395) He then cites as an example three indistinguishable golden statues. Because they’re indistinguishable, we say they are “equal”. But there are three masses of gold involved, and so there are really three things here, three statues. But the case of the Trinity is different, he urges. How? Because “whatever is in any one person of the Trinity, the smae is also completely in any other person.” Here, he implies, we do have a deeper kind of “identity” or “sameness”.

I take it that Richard’s point is that the three Persons of the Trinity don’t differ as far as their composition, because each contains one and the same divine nature, here thought of as a particular.

He then brings up a case of “three rational spirits”, three souls. Read More »Richard of St. Victor’s De Trinitate, Ch. 23

Emperor's New Clothes no.3 by ~sabphoto

What kind of philosophy should theologians study?

Here’s sound advice for non-philosophers, including theologians, who are interested in philosophy, in an interview with distinguished philosopher Timothy Williamson. The interview starts slowly, but gets interesting when Williamson recounts his experiences with “continental” philosophy. He also addresses a pervasive confusion, common in discourse outside analytic philosophy, between truth and certainty.

Awesome... and yet, not awesome.

Gregory of Nazianzus – an early dialetheist? (Dale)

Awesome... and yet, not awesome.Philosopher Graham Priest is notorious for his claim that there are true contradictions. I have to confess that when I first heard this years ago, I thought the people telling me were pulling my leg. But, they were not. Priest is deadly serious, and has developed paraconsistent logics – logical systems which allow some true contradictions. And he’s vigorously defended his claims against all comers, as in this recent book.

No, he doesn’t say that all contradictions are true – only some of them. And the ones which are true are also false. He claims that this thesis of dialetheism solves the liar paradox and others.

Very rarely, some theologian will come along, and assert that the Trinity doctrine is a true contradictionnot a merely apparent contradiction, but a real one.

Most Christians, though, eschew such a claim. Mysterian James Anderson discusses and rejects this approach to Christian mysteries in his book Paradox in Christian Theology.

Much to my surprise, I recently found a move like Priest’s in Gregory of Nazianzus (d. c. 390), in his Third Theological Oration.

Gregory is considering  an argument by Arians, a premise of which is that the Son who the Father begot either was or was not in existence – I take it, prior or “prior” to his being begotten. (It is clear at the end of this section that Gregory takes them to mean literally before.)

Gregory asserts that this claim “contains an absurdity, and not a difficulty to answer.” He then gives a non-too-clear time example, which I’ll skip. Then he argues,

…in regard to this expression, “I am now telling a lie,” admit one of these alternatives, either that it is true, or that it is a falsehood, without qualification (for we cannot admit that it is both). But this cannot be. For necessarily he either is lying, and so is telling the truth, or else he is telling the truth, and so is lying. What wonder is it then that, as in this case [of the liar paradox] contraries are true, so in that case [concerning the Arians’ premise above] they [i.e. both alternatives] should both be untrue, and so your clever puzzle prove mere foolishness?

I take it that the “contraries” he mentions would be: “the man is lying” and “the man is telling the truth”. Contraries are often defined nowadays – I’m not sure how they were defined in his day – as claims that can’t both be true. But here, Gregory asserts that both are trueRead More »Gregory of Nazianzus – an early dialetheist? (Dale)

Maverick - Ford 1970

Linkage: Mavericking Mysteries

Over at the Maverick Philosopher, Bill Vallicella and some others have been on a tear of philosophical theology, specifically on appeal to mysteries in theology, and on incarnation issues. Here, atheist philosopher Peter Lupu mounts an argument against positive mysteriansism. Bill asks: Does inconceivability entail impossibility. (No.) And: Whether Jesus exists necessarily? (No.) In another post, Bill argues that if a mysterian defense works for… Read More »Linkage: Mavericking Mysteries

Book review: Randal Rauser’s Faith Lacking Understanding

Note: this review originally appeared in Religious Studies Review. FAITH LACKING UNDERSTANDING: THEOLOGY ‘THROUGH A GLASS DARKLY’. By Randal Rauser. Colorado Springs, CO: Paternoster, 2008. This rausing little book is a work of popular philosophical theology which exhibits uncommon intellectual honesty, courage, humor, clarity, and insight. Each chapter but the first is devoted to a doctrine of the Apostles’ Creed: Trinity, Creation, Incarnation, Atonement, Ascension,… Read More »Book review: Randal Rauser’s Faith Lacking Understanding

“Trinity” @ the Stanford Encyclopedia of Philosophy

Little known fact: overwork causes one’s neck to become invisible! After an embarrassing amount of time, I’ve finally finished my encyclopedia entry on the Trinity for the Stanford Encyclopedia of Philosophy (as well as lengthy supplementary documents on the history of Trinity doctrines, Judaic and Islamic objections, and unitarianism). Since I can’t thank them in the entry, I’d like to thank editors Ed Zalta and… Read More »“Trinity” @ the Stanford Encyclopedia of Philosophy

Don’t think/write like a contemporary theologian – Part 5 – identity blabber

Barak Hussein Obama, as I write this, enjoys untold legions of fans. Some of them identify him with Jesus, or with Abe Lincoln, or Franklin Delano Roosevelt, or Moses. What I just said is true. But what it mean? It sure does not mean that a lot of people think B.H.O. is one and the same being as (i.e. is numerically identical to) Abe (etc.).… Read More »Don’t think/write like a contemporary theologian – Part 5 – identity blabber

Dealing with Apparent Contradictions: Part 19 – Review of Antognazza on Leibniz

Maria Rosa Antognazza teaches at King’s College London, where she also directs the Centre for the History of Philosophical Theology. She has written a highly praised forthcoming intellectual biography of the great Leibniz. Below is my review of her book pictured here. The review is forthcoming in Religious Studies. Bottom line: Leibniz employs positive and negative mysterian moves, as well as rational reconstruction of the… Read More »Dealing with Apparent Contradictions: Part 19 – Review of Antognazza on Leibniz

Linkage: Impossible World Site and Blog (Dale)

Check it out: a whole site and blog devoted to art featuring impossible objects! I can’t help but think that the picture above had a trinitarian inspiration: according to the babelfish, it means “You must in such a way live”. (German speaking readers – feel free to correct the translation.) I read this as addressed to the Trinity. If so, this pic would be an… Read More »Linkage: Impossible World Site and Blog (Dale)

perfection, the Trinity, and impossible beings (Dale)


“This clears it all up, right?”
Anselm: “Um, no. I must bestow upon it the analytic frown of uncomprehension.”
(image credit)

I used to think I had a great objection to Anselm’s famous ontological argument. (Bear with me – this has something to do with social trinitarianism.) The argument, at least many forms of it, basically goes like this. If it is logically possible that there’s a Greatest Possible Being (i.e. a being such that there’s no logical possibility of there being a greater one), then it is necessary that there’s a Greatest Possible Being. More simply: if it’s possible (non-contradictory) that God exists, then it’s also necessary that God exists (i.e. it is inconsistent to suppose God not existing). (For more, see here and here. For more than you’d ever want to know, here.)

Many critics have replied like this:

I’d be a sucker to grant your premise. Why should I think that the notion of a Greatest Possible Being is the notion of a possible thing at all? Read More »perfection, the Trinity, and impossible beings (Dale)

Constitution Trinitarianism Part 6: summing up

Is Ned in trouble? Here’s a quick post to wrap up the series on Brower’s and Rea’s constitution theory of the Trinity. First, it’s striking how original and self-consistent their approach is. It is rare to find something this new, and this well thought through on such an old topic. They’ve carefully carved out a unique position, one which has a motivation outside of theology… Read More »Constitution Trinitarianism Part 6: summing up

Leftow 3: “A Latin Trinity” – Part 2

Last time, we saw the set-up from Leftow. He’s aiming at orthodoxy, which to him means theorizing in the tradition of the great medieval Latin-speaking theologians. He’s spent a good amount of ink defending the consistency of supposing that a person might travel back to the past, so that she, as it were, acts together with (nearby and at the same time as) her earlier… Read More »Leftow 3: “A Latin Trinity” – Part 2

Ye Olde Trinity Diagram: The Shield of Faith

How many times have you seen one of these offered as an explanation or illustration of the doctrine of the Trinity? There’s a good article about these here, complete with some links to real medieval examples. Basically, this sort of Shield of Faith (Latin: scutum fidei) diagram seems to have originated in the high middle ages, with the intention of illustrating the doctrine. In general,… Read More »Ye Olde Trinity Diagram: The Shield of Faith

the logical symbol for identity

Identity

Identity is a unique and interesting relation.