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Turn IsLexicographicallyLess into an obsolete synonym for \< #4504

Merged
merged 2 commits into from
May 21, 2021
Merged

Turn IsLexicographicallyLess into an obsolete synonym for \< #4504

merged 2 commits into from
May 21, 2021

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fingolfin
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Because < already compares lists lexicographically, just
more efficiently than what IsLexicographicallyLess did.

The one downside of this I can think of is now one could
abuse this to write IsLexicographicallyLess(1,2)

As far as I can tell, no package and no library code uses IsLexicographicallyLess after this PR. So perhaps we should mark it as obsolete, too?

@fingolfin
Turn IsLexicographicallyLess into synonym for \<
461ec0a 
Because \< already compares lists lexicographically, just
more efficiently than what `IsLexicographicallyLess` did.

The one downside of this I can think of is now one could
abuse this to write `IsLexicographicallyLess(1,2)`
ThomasBreuer
ThomasBreuer approved these changes May 20, 2021
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Yes, \< is better than IsLexicographicallyLess. (One more advantage is that \< works also for non-dense lists.)
I do also second the idea to move IsLexicographicallyLess to the obsolete functionality, and to drop the manual entry.

@ChrisJefferson
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I also agree with making it obsolete (but this could be merged first, then that)

@fingolfin
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I've just added a commit making it obsolete

@wilfwilson wilfwilson added release notes: to be added PRs introducing changes that should be (but have not yet been) mentioned in the release notes topic: obsolete functionality labels May 21, 2021
@wilfwilson wilfwilson changed the title Turn IsLexicographicallyLess into synonym for \< Turn IsLexicographicallyLess into an obsolete synonym for \< May 21, 2021
@wilfwilson wilfwilson added release notes: use title For PRs: the title of this PR is suitable for direct use in the release notes and removed release notes: to be added PRs introducing changes that should be (but have not yet been) mentioned in the release notes labels May 21, 2021
@ThomasBreuer ThomasBreuer merged commit df2bac3 into gap-system:master May 21, 2021
@fingolfin fingolfin deleted the mh/IsLexicographicallyLess branch May 25, 2021 14:40
@fingolfin fingolfin added kind: removal or deprecation A feature was removed or deprecated / made obsolete and removed topic: obsolete functionality labels Aug 17, 2022
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@ChrisJefferson ChrisJefferson ChrisJefferson approved these changes

@wilfwilson wilfwilson wilfwilson approved these changes

@ThomasBreuer ThomasBreuer ThomasBreuer approved these changes

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@fingolfin @ChrisJefferson @wilfwilson @ThomasBreuer