Comments (3)
Thanks for your comment. I cannot reproduce this. You have probably broken something on your side. Your "I'm using Lean 4.5.0." comment is very suspicious. You do not get to choose which version of Lean you use with Mathematics in Lean. It is specified in the lean-toolchain file that comes with the project. If you change it then you should expect lots of things to fail.
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Now that I have seen #175 I suspect this is the same issue: you are not following instructions and try to use the examples into an random context instead of playing with the code downloaded from https://github.com/leanprover-community/mathematics_in_lean.
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I am closing the issue in order to avoid confusing other readers, who could believe there is an actual issue. But feel free to ask more questions (asking them on Zulip is probably more convenient).
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Related Issues (20)
- Missing mentioned function and unused hypothesis
- Snake case -> Camel case HOT 1
- Add a description of `apply_fun`
- Better installation instructions for VS Code HOT 1
- Antisymmetry of partial orders (section 2.5) HOT 1
- Potentially duplicate example HOT 2
- .lake at .gitignore HOT 2
- Does Lean expand `x^2` to `x^1 * x`? (Chapter 2.4) HOT 1
- examples with Monotone report "typeclass instance problem is stuck" HOT 3
- FunLike update
- Lack of Introduction for Many Facts Used in the Tutorial HOT 2
- Specify explicit version of mathlib in lakefile HOT 1
- Consider adding the failed example relevant to the bad diamond issue in Chapter7 §1
- `tauto!`
- `refine'`
- Minor typo at S02_Overview.lean
- Simp and let
- Replace induction' with induction
- C04/S02: Possible redundant exercise
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