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nLab > Latest Changes: boolean domain

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  1.  
    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeJan 2nd 2023

    added the following redirects (which used to point to truth value):

      [[!redirects boolean]]
  [[!redirects booleans]]

  [[!redirects Boolean]]
  [[!redirects Booleans]]

    and to

      [[!redirects Bit]]

    and cross-linked with bit and more terms (such as top and bottom)

    added reference to the Wikipedia entry

    will next add inference rules for Bool as an inductive type…

    diff, v19, current

    • CommentRowNumber2.
    • CommentAuthorUrs
    • CommentTimeJan 2nd 2023

    spelled out (here) the type inference rules.

    added pointer to

    diff, v19, current

    • CommentRowNumber3.
    • CommentAuthorUrs
    • CommentTimeJan 3rd 2023

    added pointer to:

    diff, v20, current

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeJan 5th 2023

    added a paragraph (here) making explicit that Bit≃S 0Bit \;\simeq\; S^0, and used the occasion for the fun remark that in this sense the S nS^n are types of “higher homotopy bits”

    am making a corresponding edit also at 0-sphere

    diff, v21, current

  5. added section about the boolean domain’s rules with typal computation and uniqueness rules, and the corresponding dependent universal property of the boolean domain

    Anonymous

    diff, v23, current

    • CommentRowNumber6.
    • CommentAuthorUrs
    • CommentTimeJan 24th 2023

    Not sure if it makes sense to duplicate the rules in this way, it seems confusing without comment. Maybe better to merge the two rule sets and add a comment below on the different posdibilities of equality in the computation rule.

    • CommentRowNumber7.
    • CommentAuthorGuest
    • CommentTime4 days ago

    adding a section about the extensionality principle for the boolean domain.

    diff, v26, current

1 to 7 of 7

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