Full Idea
Whitehead tried to avoid points, and make do with extended regions and sets of regions.
Gist of Idea
Whitehead replaced points with extended regions
Source
report of Alfred North Whitehead (Process and Reality [1929]) by Willard Quine - Existence and Quantification p.93
Book Reference
Quine,Willard: 'Ontological Relativity and Other Essays' [Columbia 1969], p.93