Update README.md

README.md

@@ -55,7 +55,7 @@ The version of `set.mm` in this dataset has 10% of proofs replaced with `?` in o
 
 The Lean mathlib commit used in this dataset is `6313863`. Theorems created in subsequent commits can be used for evaluating Lean theorem provers. 
 
-This dataset contains only the training set of the [MATH dataset](https://github.com/hendrycks/math). However, because this dataset contains ProofWiki, the Stacks Project, Trench's Analysis, and Stein's Number Theory, the `proof-pile` contains the validation and test sets of the [NaturalProofs dataset](https://github.com/wellecks/naturalproofs). 
+This dataset contains only the training set of the [MATH dataset](https://github.com/hendrycks/math). However, because this dataset contains ProofWiki, the Stacks Project, Trench's Analysis, and Stein's Number Theory, models trained on it cannot be evaluated on the [NaturalProofs dataset](https://github.com/wellecks/naturalproofs). 
 
 ## Contributions
 Authors: Zhangir Azerbayev, Edward Ayers, Bartosz Piotrowski.