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The LaTeX command for mathbb F (π½) is \mathbb{F} β finite field.
\mathbb{F}Write \mathbb{F} inside math mode β that is, between $β¦$ for inline math or in a \[ β¦ \] / equation block for display math. This symbol needs the amssymb package, so add \usepackage{amssymb} to your preamble.
$A \mathbb{F} B$Prefer to see it live? Paste it into the LaTeX preview and it renders as you type β no compiler, no signup.
\emptyset\varnothing\mathbb{N}\mathbb{Z}\mathbb{Q}\mathbb{R}\mathbb{C}^\complement\bigcap\bigcup\bigsqcup\uplus\biguplus\mathcal{P}Search all 380+ LaTeX symbols β
Use \mathbb{F} in math mode after adding \usepackage{amssymb} to your preamble. For example, $A \mathbb{F} B$.
It comes from the amssymb package β add \usepackage{amssymb} to your preamble.