Medieval Christian polemic framed Islam as incomplete faith, not false one

Evidence

The sum of all the controversy that he maintained against Islam through so long a life was to assert that the Christian doctrine of the Trinity and of the Incarnation is more appropriate to belief in the unity and power of God than Islamic definitions are. The point of this argument was that Muslim belief implies, although Muslims will not accept, the Christian creed. “The Muslims believe in one God, but they do not believe that the Divine Unity has infinite and eternal Act in itself… The Muslim religion postulates that there is one God, but does not prove it.’ According to Lull, the doctrine of the Trinity did prove it. The Muslim belief was presented by him rather as incomplete than as false. — Norman Daniel, Islam and the West, 263

Categorization

• XREF: Complicates the vault’s genealogy of ‘Islam-as-constitutive-outside’: here Islam is internally framed as incomplete Christianity (needing absorption), not purely external enemy — worth setting against Anidjar’s enemy-genealogy claims.