The following criterion (read: a sufficient condition) for
subnormality of unbounded weighted composition operators is extracted from [21, Theorem 29].
It is therefore suggested that the diverse meanings form a conceptual space of interconnected meanings which are essentially based on the general notion of
subnormality. This space includes notions of 'smallness' in a concrete quantitative and dimensional sense as well as in a figurative sense, and importantly also possible evaluations of
subnormality, which may be positive or negative.
Intrachromosomal insertion of chromosome 13 in a family with psychosis and mental
subnormality. J Ment Defic Res.
Beginning in 1921, the predecessors of AAIDD began to publish MR definitions that were predicated on criteria that Doll (1941) considered essential for describing MR: (a) social incompetence, (b) mental
subnormality, (c) developmental arrest, (d) obtains at maturity, (e) of constitutional origin, and (f) essentially incurable.
In his book, Foundations of Bilingual Education and Bilingualism, which has sold more than 60,000 copies he states: "Bilingualism is notadirect cause of speech or language impairment, autism, dyslexia, developmental aphasia, severe
subnormality in cognitive development, serious emotional disturbance or behavioural problems.
Writing in a style that attempts to preserve the informal flavor of the classroom, Isaacs (mathematics, University of Wisconsin) covers
subnormality, split extensions, commutators, Frobenius actions, and permutation groups.
