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[Merged by Bors] - refactor(Data/Int/Bitwise): use <<< and >>> notation#6789

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[Merged by Bors] - refactor(Data/Int/Bitwise): use <<< and >>> notation#6789
eric-wieser wants to merge 4 commits intomasterfrom
eric-wieser/int-shift-notation

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The lemma names have changed to use shiftLeft and shiftRight to match the new Nat names.


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The lemma names have changed to use `shiftLeft` and `shiftRight` to match the new `Nat` names.
@eric-wieser eric-wieser added awaiting-review awaiting-CI This PR does not pass CI yet. This label is automatically removed once it does. labels Aug 25, 2023
@github-actions github-actions bot removed the awaiting-CI This PR does not pass CI yet. This label is automatically removed once it does. label Aug 25, 2023
@ghost ghost added the merge-conflict The PR has a merge conflict with master, and needs manual merging. (this label is managed by a bot) label Aug 27, 2023
@ghost ghost removed the merge-conflict The PR has a merge conflict with master, and needs manual merging. (this label is managed by a bot) label Aug 30, 2023

@[simp]
theorem shiftl_neg (m n : ℤ) : shiftl m (-n) = shiftr m n :=
theorem shiftLeft_neg (m n : ℤ) : m <<< (-n) = m >>> n :=
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Are the parentheses still necessary?

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Surprisingly, yes!

fun i n => by
dsimp
simp [- Nat.shiftLeft_eq, Nat.shiftLeft_zero, Nat.shiftRight_add,
← Nat.shiftLeft_sub]
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This indentation is very weird.

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Fixed, I forgot to un-indent when un-line-wrapping.

@ADedecker ADedecker added awaiting-author A reviewer has asked the author a question or requested changes. and removed awaiting-review labels Sep 9, 2023
@eric-wieser eric-wieser added awaiting-review and removed awaiting-author A reviewer has asked the author a question or requested changes. labels Sep 10, 2023
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Thanks!

bors merge

@github-actions github-actions bot added ready-to-merge This PR has been sent to bors. and removed awaiting-review labels Sep 10, 2023
bors bot pushed a commit that referenced this pull request Sep 10, 2023
The lemma names have changed to use `shiftLeft` and `shiftRight` to match the new `Nat` names.
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bors bot commented Sep 10, 2023

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@bors bors bot changed the title refactor(Data/Int/Bitwise): use <<< and >>> notation [Merged by Bors] - refactor(Data/Int/Bitwise): use <<< and >>> notation Sep 10, 2023
@bors bors bot closed this Sep 10, 2023
@bors bors bot deleted the eric-wieser/int-shift-notation branch September 10, 2023 19:37
Julian added a commit that referenced this pull request Sep 11, 2023
* fix-lint: (463 commits)
  chore: lint-style.py was calling str.replace incorrectly
  chore: module doc for #find_home, #minimize_imports, import early (#7095)
  chore: reduce imports to Data.Rat.Cast.CharZero (#7091)
  chore: cleanup imports of Data/Rat/Cast/Defs (#7092)
  chore: linarith only needs ring1 (#7090)
  refactor(Data/Int/Bitwise): use `<<<` and `>>>` notation (#6789)
  chore: delete redundant commented-out positivity test (#7085)
  chore: fix docstrings, names and aligns about paracompacity of emetric spaces (#7064)
  feat(Data/Finsupp): add notation (#6367)
  refactor: re-home some meta code (#6921)
  fix: don't use `False` as a bool, use `false` (#7059)
  chore: fix reference to `compactCovering` in docstring (#7065)
  fix: fix link in docstring of IsWellFounded (#7063)
  chore: tidy various files (#7041)
  feat: roots in an algebra (#6740)
  chore: revert ProofWidgets bump in #7044 and #7056 (#7069)
  feat: super factorial (#6768)
  feat(LinearAlgebra/Matrix/Trace): add Matrix.trace_diagonal (#7061)
  chore: complete ProofWidgets bump (#7056)
  feat: More `Finset.sup'` lemmas (#7021)
  feat: self_lt_pow (#7058)
  chore: move some files to `MeasureTheory/MeasurableSpace/` (#7045)
  chore(RingTheory/Nilpotent): untwine two universes (#7057)
  feat: von Neumann Mean Ergodic Theorem (#6053)
  feat: (sSup, Iic) and (Ici, sInf) are Galois connections (#6951)
  feat: derivative along a vector (#7038)
  feat: check for some common git problems in CI (#7043)
  chore: bump ProofWidgets (#7044)
  feat(Topology/Algebra): add `DiscreteTopology Mˣ` (#7028)
  chore: simplify `by rfl` (#7039)
  chore: tidy various files (#7035)
  refactor(LinearAlgebra/CliffordAlgebra/Conjugation): expose implementation details of 'reverse' (#6783)
  feat: add `DiscreteTopology.of_continuous_injective` (#7029)
  feat: restore the module docstring code snippet (#7030)
  feat: flesh out the API for `realPart` and `imaginaryPart` (#7023)
  chore: missing simps lemmas for `Multiplicative` defs (#7016)
  feat: characterize isLittleO on principal filters (#7008)
  doc: cleanup documentation on Basis.constr (#7007)
  feat: cleanup API around differentiable functions (#7004)
  feat: add Nat.digits_append_digits (#6999)
  feat: definition of the homology of a short complex (#6994)
  chore: implement porting notes about Polish spaces (#6991)
  feat(Algebra/Category/ModuleCat): composition of restriction of scalar functors (#6915)
  feat: compute the integral of sqrt (1 - x ^ 2) (#6905)
  chore(*/TensorProduct): missing functorial lemmas (#6781)
  feat: a functor from a small category to a filtered category factors through a small filtered category (#6212)
  feat: expand API on locally integrable functions (#7006)
  chore: split Tactic.NormNum.Basic (#7002)
  feat: a few lemmas on continuous functions (#7005)
  feat: ZMod.castHom_self (#7013)
  ...
kodyvajjha pushed a commit that referenced this pull request Sep 22, 2023
The lemma names have changed to use `shiftLeft` and `shiftRight` to match the new `Nat` names.
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