Full Idea
The Iterative Conception (Zermelo 1930) says everything appears at some stage. Given two objects a and b, let A and B be the stages at which they first appear. Suppose B is after A. Then the pair set of a and b appears at the immediate stage after B.
Gist of Idea
The Iterative Conception says everything appears at a stage, derived from the preceding appearances
Source
Penelope Maddy (Believing the Axioms I [1988], §1.3)
Book Reference
-: 'Journal of Symbolic Logic' [-], p.485
A Reaction
Presumably this all happens in 'logical time' (a nice phrase I have just invented!). I suppose we might say that the existence of the paired set is 'forced' by the preceding sets. No transcendental inferences in this story?