A related sense of “arbitrary”, which is common in math and CS, is “could be anything, and will probably be chosen specifically to annoy you”.
wikipedia on nets:
net or Moore-Smith sequence is a generalization of a sequence, intended to unify the various notions of limit and generalize them to arbitrary topological spaces.
A related sense of “arbitrary”, which is common in math and CS, is “could be anything, and will probably be chosen specifically to annoy you”.
wikipedia on nets: