minor comment and typo
We will fix all minor comments and typos without explicitly addressing them in the rebuttal
We will fix all minor comments and typos without explicitly addressing them in the rebuttal. Practical Impact: Our primary aim in this work is indeed theoretical. Appendix, but we will add a reference to it in the main paper. P AC T erminology: We have assumed that readers will be familiar with standard terminology from P AC learning. Non-trivial Class: The definition of non-trivial class appears just before the statement of Theorem 5 (in lines 182-183).