Theorem IsAntichain.insert_of_symmetric

Modification history

2026-06-10 08:59

Mathlib/Order/Antichain.lean

chore(Order/Defs/Unbundled): deprecate `def Symmetric` in favor of `class Std.Symm` (#38092)

Deleted IsAntichain.insert_of_symmetric View on Github →

2022-12-24 19:17

Mathlib/Order/Antichain.lean

feat: port `Order.Antichain` (#1206)

Added IsAntichain.insert_of_symmetric View on Github →