Full Idea
In the strong form of the principle of compositionality any meaningful expressions combined in a syntactically well-formed manner compose a meaningful expression.
Gist of Idea
Strong compositionality says meaningful expressions syntactically well-formed are meaningful
Source
Ofra Magidor (Category Mistakes [2013], 1.1)
Book Reference
Magidor,Ofra: 'Category Mistakes' [OUP 2013], p.5
A Reaction
[She cites Montague as holding this view] I find this plausible, at least. If you look at whole sentences they can seem meaningless, but if you track the process of composition a collective meaning emerges, despite the oddities.
Related Idea
Idea 18000 Weaker compositionality says meaningful well-formed sentences get the meaning from the parts [Magidor]