The LaTeX command for therefore (∴) is \therefore (therefore).
\thereforeWriting a paper? The table generator and the BibTeX cleaner are one click away, no account.
Write \therefore inside math mode, that is between $…$ for inline math or in a \[ … \] or equation block for display math. This symbol needs the amssymb package, so add \usepackage{amssymb} to your preamble.
\therefore keeps its spacing inside a formula; for a word such as "and" in the middle of one, use \text{ and } from amsmath. With unicode-math under XeLaTeX or LuaLaTeX, typing ∴ in a formula gives the same symbol.
$p \therefore q$Open this example in the live preview: it renders as you type, with no compiler and no signup.
Logic symbols in LaTeX: the full table or search all 350+ LaTeX symbols.
Use \therefore in math mode after adding \usepackage{amssymb} to your preamble. For example, $p \therefore q$.
It comes from the amssymb package: add \usepackage{amssymb} to your preamble.