Sebastian Ørsted submitted the
leftindex
package.
Version: 0.1beta 2020-08-25 License: lppl1.3c
Summary description: Left indices with better spacing
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The package leftindex provides commands for typesetting left indices. Unlike any other similar package I know of, leftindex also indents the left superscript, providing much better spacing in general.
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The package’s Catalogue entry can be viewed at https://ctan.org/pkg/leftindex
The package’s files themselves can be inspected at http://mirror.ctan.org/macros/latex/contrib/leftindex/
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Thanks for the upload.
For the CTAN Team Petra Rübe-Pugliese
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