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    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeOct 25th 2012
    • CommentRowNumber2.
    • CommentAuthorUrs
    • CommentTimeJul 21st 2021

    Added more original references:

    Under the name “braided gr-categories” or “braided cat-groups” and thought of as a sub-class of braided monoidal categories, the notion of braided 2-groups is considered in:

    In the generality of braided ∞-group stacks that are double loopings, the notion is made explicit in:

    diff, v3, current

    • CommentRowNumber3.
    • CommentAuthorUrs
    • CommentTimeJul 21st 2021
    • (edited Jul 21st 2021)


    As a special case of k-tuply groupal n-groupoids:

    diff, v3, current

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeJul 21st 2021

    also pointer to:

    diff, v4, current