Here's a translation I did of Avicenna's Metaphysics (Al-Shifa) book 9, chapter 4. That's the place Avicenna describes the emanation of the universe from God. It's a facing page translation, with the critical Latin text.
Avicenna, Meta. 9.4
How has Aquinas not proved the Trinity?
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St Thomas holds that we cannot know by natural reason that God is a
Trinity. However, he also endorses a version of St Augustine’s account of
the Trinity...
17 hours ago