mathlib

6ed6abbd - feat(data/quot): make `trunc` a `quotient` (#18320)

feat(data/quot): make `trunc` a `quotient` (#18320) This allows us to use `quotient` lemmas for `trunc`. mathlib4 PR: https://github.com/leanprover-community/mathlib4/pull/1924 Co-authored-by: Eric Wieser <wieser.eric@gmail.com>