• Leate_Wonceslace@lemmy.dbzer0.com
    link
    fedilink
    English
    arrow-up
    1
    arrow-down
    1
    ·
    edit-2
    1 month ago

    A set is infinite exactly when there exists a proper subset whose cardinality is that of the set.

    Edit: someone hates people who know shirt lmao.