Fix math imports; drop Math#80

Merged

JordanMartinez merged 4 commits intopurescript-contrib:mainfrom

JordanMartinez:fix-math

Mar 29, 2022

Commits on Mar 28, 2022

Commits on Mar 29, 2022

Revert "Update error messages: choice is now right-associative"
JordanMartinez
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