♦ Two of Diamonds
the ontological and a priori family
Argument from Eternal Truths
St Augustine of Hippo
De libero arbitrio (On Free Choice of the Will)

DemonstrativeConcludes that something exists.
- Argument form
- Modus ponens (chained: unchanging truths to an unchanging source)
- Concludes to
- Transcendent source (an unchangeable and eternal source of eternal truths)
- Premise ground
- Metaphysical (above the changeable there must be something unchangeable)
- Modal strength
- Actual
- What it licenses
- Period
- Patristic (388–95)
- Tradition
- Augustinian (Platonist)
Further reading
- Source text, public domain
De libero arbitrioPatrologia Latina Vol. 32.pdf - A scholarly account
Read an exposition of the argument - A principal objection
Read the objection in full
This formulation is ours, composed from the primary source and compressed to fit the card; the argument admits of other statements. Objections have been made to every argument in the deck; where one is linked above, it is chosen by us, not written by us.
ergocards.com/eternal-truths
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