Lull pushed rational argument for the Trinity beyond medieval theological limits

Evidence

These questions obsessed him, till he came to think of the relation of Christianity to Islam chiefly in these terms. He took rationalisation of the Trinity further than any other polemist and much further than contemporary schools of theology would allow. — Norman Daniel, Islam and the West, 980

Categorization

• XREF: connects to: Lull argued Muslim monotheism was incomplete, not false, and only the Trinity proved it.; Lull never sincerely engaged actual Muslim objections to the Trinity; Lull taught lay Christian merchants to prove the Trinity to Muslims (+1 more)