mathlib

c495ed61 - move(data/set/pairwise): Move `set.pairwise_on` (#9986)

move(data/set/pairwise): Move `set.pairwise_on` (#9986) This moves `set.pairwise_on` to `data.set.pairwise`, where `pairwise` and `set.pairwise_disjoint` already are. Co-authored-by: Eric Wieser <wieser.eric@gmail.com>