Full Idea
An appreciation of the connection between sameness of number and equinumerosity that it reports is essential to even the most primitive grasp of the concept of cardinal number.
Gist of Idea
A basic grasp of cardinal numbers needs an understanding of equinumerosity
Source
Richard G. Heck (Cardinality, Counting and Equinumerosity [2000], 6)
Book Reference
-: 'Notre Dame Journal of Formal Logic' [-], p.202