I wonder if there is any package that produces a \mathbb{} symbol for lowercase letters.

Thanks in advance!


2 Answers 2


After a little searching on the internet, I found the bbm package that produces the blackboard symbol for lowercase letter


You can use mathbbol package:




\[ \mathbb{abcd} \]


enter image description here

  • 2
    Well, they show some likeness with black board letters but I would not use them. I find those letters awkward. Especially the upper case letters are awful. The answer itself is syntactically ok.
    – user31729
    Jul 9, 2015 at 8:22
  • 1
    @ChristianHupfer I agree with you. Nothing like amsfonts :) Jul 9, 2015 at 9:01
  • The blackboard bold alphabets are described in table 213 of the Comprehensive list cited in the accepted answer.
    – egreg
    Jul 9, 2015 at 9:22

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