Full Idea
We might arrive to the concept of infinity by composing concepts of negation and finiteness.
Gist of Idea
Combining the concepts of negation and finiteness gives the concept of infinity
Source
Carrie Jenkins (Grounding Concepts [2008], 5.3)
Book Reference
Jenkins,Carrie: 'Grounding Concepts' [OUP 2008], p.166
A Reaction
Presumably lots of concepts can be arrived at by negating prior concepts (such as not-wet, not-tall, not-loud, not-straight). So not-infinite is perfectly plausible, and is a far better account than some a priori intuition of pure infinity. Love it.