The quality, state, or character of being doctrinal; the degree to which something is based on or relates to established doctrines.
From doctrinal + -ity (from Latin -itas, creating abstract nouns denoting state or condition). This is a rare, formal abstraction used primarily in academic writing.
Creating 'doctrinality' to mean 'how doctrinal something is' shows English's endless capacity to abstract—we can now measure and discuss 'the doctrinality of different systems,' turning concepts into measurable properties.
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