Full Idea
It appears that a single thing, which must be imagined as some sort of interval [intervallum] existing between two things, cannot exist in extramental reality, but only in the intellect.
Gist of Idea
The single imagined 'interval' between things only exists in the intellect
Source
Peter Auriol (Sentences [1316], I fols318 v a-b), quoted by John Heil - The Universe as We Find It 7
Book Reference
Heil,John: 'The Universe as We Find It' [OUP 2012], p.135
A Reaction
This is the standard medieval denial of the existence of real relations. It contrasts with post-Russell ontology, which seems to admit relations as entities. Heil and Auriol and right.