Fixed

Duplicate issue below

This is the only one that works on infinite strings.

You have an incorrect Haskell version selected.

Save your solution, reset the trainer and select GHC 8.x.

This is great, was really educational for me to see this solution!

Loved this kata! I exploited a symmetry I found, but I don't really understand how my solution works.

In Haskell the function is called isThueMorse, not thueMorse

In Haskell only 1 + tan(x)^2 is accepted

Thanks. :]

Have fun and keep at it!

If only those input lists starting with 0 wouldn't be there... Great kata, I'll rack my brain over it the coming weeks.

The description says the function should be called removeO, yet the function is called go in Haskell

The random tests in Haskell sometimes contain the substring "--"

GHC 7.10 isn't available for me

For me, this kata fails with

SingletonsSpec.hs:9:8:
Could not find module `Test.Hspec.Codewars'
Perhaps you meant
Test.Hspec.Compat
Test.Hspec.Core (from hspec-2.2.4@hspec_GEAgkH1Gbr9BY0qzvd784f)
Test.Hspec.Core.Tree
Use -v to see a list of the files searched for.