This PR changes the "declaration uses 'sorry'" warning to use backticks
instead of single quotes, consistent with Lean's conventions for
formatting code identifiers in diagnostic messages.
This PR adds iterators and slices for `DTreeMap`/`TreeMap`/`TreeSet`
based on zippers and provides basic lemmas about them.
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Co-authored-by: Markus Himmel <markus@himmel-villmar.de>
This PR reworks the `simp` set around the `Id` monad, to not elide or
unfold `pure` and `Id.run`
In particular, it stops encoding the "defeq abuse" of `Id X = X` in the
statements of theorems, instead using `Id.run` and `pure` to pass back
and forth between these two spellings. Often when writing these with
`pure`, they generalize to other lawful monads; though such changes were
split off to other PRs.
This fixes the problem with the current simp set where `Id.run (pure x)`
is simplified to `Id.run x`, instead of the desirable `x`.
This is particularly bad because the` x` is sometimes inferred with type
`Id X` instead of `X`, which prevents other `simp` lemmas about `X` from
firing.
Making `Id` reducible instead is not an option, as then the `Monad`
instances would have nothing to key on.
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Co-authored-by: Sebastian Graf <sg@lean-fro.org>
Co-authored-by: Kim Morrison <kim@tqft.net>
Co-authored-by: Paul Reichert <6992158+datokrat@users.noreply.github.com>
This PR provides tests for those tree map functions that are not
verified yet.
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Co-authored-by: Paul Reichert <datokrat@users.noreply.github.com>
This PR adds all missing tree map lemmas about the interactions of the
functions `empty`, `isEmpty`, `contains`, `size`, `insert(IfNew)` and
`erase`.
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Co-authored-by: Paul Reichert <6992158+datokrat@users.noreply.github.com>
This PR introduces ordered map data structures, namely `DTreeMap`,
`TreeMap`, `TreeSet` and their `.Raw` variants, into the standard
library. There are still some operations missing that the hash map has.
As of now, the operations are unverified, but the corresponding lemmas
will follow in subsequent PRs. While the tree map has already been
optimized, more micro-optimization will follow as soon as the new code
generator is ready.
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Co-authored-by: Paul Reichert <6992158+datokrat@users.noreply.github.com>
