Set complement symbol (Aᶜ, A′, Ā) in LaTeX

In mathematics, the complement of A set is denoted in three ways which are: A^c, A′, and Ā. In order to get these symbols in LaTeX you can follow the table below.

Package	Command	Output
amssymb	$A^\complement$
None	$A^\prime$
None	$\overline{A}$

\documentclass{article}
\usepackage{amssymb}
\begin{document}

  $$ (A \cup B)^\complement = A^\complement \cap B^\complement $$
  $$ (A \cup B)^\prime = A^\prime \cap B^\prime $$
  $$ \overline{(A \cup B)} = \overline{A} \cap \overline{B} $$

\end{document}

Output:

Set Complement (∁) symbol with other packages

This set of complement symbols is also printed by other packages, but the output may be slightly different.

Package	Command	Output
amssymb	$A^\complement$
None	$A^\mathsf{c}$
mathabx	$A^\complement$
mathabx	$A^{\bigcomplementop}$
fdsymbol	$A^\complement$
boisik	$A^\complement$
stix	$A^\complement$