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1. • CommentRowNumber1.
   • CommentAuthornLab edit announcer
   • CommentTimeJan 10th 2023
   • PermaLink
   Author: nLab edit announcer
   Format: MarkdownItexstarting page on the extensionality principle for tuple types Anonymous <a href="https://ncatlab.org/nlab/revision/tuple+extensionality/1">v1</a>, <a href="https://ncatlab.org/nlab/show/tuple+extensionality">current</a>

   starting page on the extensionality principle for tuple types

   Anonymous

   v1, current

2. • CommentRowNumber2.
   • CommentAuthorMike Shulman
   • CommentTimeJan 13th 2023
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   Author: Mike Shulman
   Format: MarkdownItex> Tuple extensionality is always true in ... dependent type theory, for the same reason that product extensionality is true. This is incorrect if "tuples" are defined as functions out of a finite set, as they are currently on the page, since then "tuple extensionality" requires function extensionality.

   Tuple extensionality is always true in … dependent type theory, for the same reason that product extensionality is true.

   This is incorrect if “tuples” are defined as functions out of a finite set, as they are currently on the page, since then “tuple extensionality” requires function extensionality.