Commit 2025-01-20 11:09 3bf4857a
View on Github →chore(Order): split GaloisConnection
into Defs.lean
and Basic.lean
(#20798)
The main reason for this PR is noticing that NNRat
brings in a lot of order theory:
Mathlib.Data.NNRat.Defs.pdf. We don't actually need to know what a boolean algebra is, or even a complete lattice, to define NNRat
.