Badge

 elementary-set-theory Earned 100 upvotes for at least 20 answers in the tag.

This badge has been awarded 21 times. Recently awarded to:
Ittay Weiss 19.1k12868
Clive Newstead 15.3k32265
MJD 21k436109
Cameron Buie 27.6k31966
Ross Millikan 83.6k555117
Hagen von Eitzen 42.6k23494
Michael Hardy 48.2k438110
amWhy 54.8k771156
Zev Chonoles 53.9k478178
joriki 92.7k577167
Arthur Fischer♦ 21.3k21750
Did 103k1074180
William 9,9011627
Martin Sleziak 20.3k33187
Henning Makholm 53.6k362135
André Nicolas 161k14129282
Brian M. Scott 155k17138275
Qiaochu Yuan 118k7245462
Andres Caicedo 24.4k35487
Asaf Karagila 91.2k12140284
Arturo Magidin 158k14250501