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This question already has an answer here:

Is there a way to write a blackboard version of the Greek capital letter Omega in LaTeX?

marked as duplicate by egreg symbols Jan 31 '18 at 9:00

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  • I must confess to never having encountered double-struck (aka blackboard or blackboard-bold) uppercase Greek letters. However, that may just be a reflection of my limited knowledge. Maybe, just maybe, there is indeed a math font out there which features a double-struck uppercase letter Omega. – Mico Jan 31 '18 at 8:22
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    There are the bbold fonts. Sans-serif, however. – campa Jan 31 '18 at 8:23
  • @Mico Kind friend, I have removed my duplicate of a question. – Sebastiano Jan 31 '18 at 9:00

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