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1. • CommentRowNumber1.
   • CommentAuthorDmitri Pavlov
   • CommentTimeJul 17th 2022
   • PermaLink
   Author: Dmitri Pavlov
   Format: MarkdownItexDeleted this: vanishes (or at heast has non-maximal rank). Added this: has [[rank]] strictly less than the [[dimension]] of $Y$. <a href="https://ncatlab.org/nlab/revision/diff/critical+point/8">diff</a>, <a href="https://ncatlab.org/nlab/revision/critical+point/8">v8</a>, <a href="https://ncatlab.org/nlab/show/critical+point">current</a>

   Deleted this: vanishes (or at heast has non-maximal rank).

   Added this: has rank strictly less than the dimension of $Y$.

   diff, v8, current

2. • CommentRowNumber2.
   • CommentAuthorDmitri Pavlov
   • CommentTimeJul 17th 2022
   • PermaLink
   Author: Dmitri Pavlov
   Format: MarkdownItexAdded: The $f$-image of a critical point is known as a __[[critical value]]__. A point in $Y$ that is not a [[critical value]] is known as a __[[regular value]]__. <a href="https://ncatlab.org/nlab/revision/diff/critical+point/8">diff</a>, <a href="https://ncatlab.org/nlab/revision/critical+point/8">v8</a>, <a href="https://ncatlab.org/nlab/show/critical+point">current</a>

   Added:

   The $f$-image of a critical point is known as a critical value. A point in $Y$ that is not a critical value is known as a regular value.

   diff, v8, current