lean4-htt/src/Std/Data/ExtHashSet.lean
Rob23oba 747ea853b5
feat: extensional hash maps (#8004)
This PR adds extensional hash maps and hash sets under the names
`Std.ExtDHashMap`, `Std.ExtHashMap` and `Std.ExtHashSet`. Extensional
hash maps work like regular hash maps, except that they have
extensionality lemmas which make them easier to use in proofs. This
however makes it also impossible to regularly iterate over its entries.
2025-04-28 06:48:25 +00:00

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/-
Copyright (c) 2025 Robin Arnez. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Robin Arnez
-/
prelude
import Std.Data.ExtHashSet.Basic
import Std.Data.ExtHashSet.Lemmas