upgrade to Lean v4.21.0 #2
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After a more careful analysis, I was able to update the code to Lean v4.21.0, the last stable release.
The building process still fails, but only with the files below. I didn't check all the errors, but considering the ones in
LoVe.LoVe02_ProgramsAndTheorems_ExerciseSheet
I assume these errors are expected, once the exercises are the exercises are completed the evaluations will be executed without errors.Can you confirm my understanding?
Some required builds logged failures:
error: build failed
This PR solves #1