吸収の法則II

$\displaystyle x \lor \sim x \land y$	$\textstyle =$	$\displaystyle x \lor y$	(71)
$\displaystyle x \lor \sim x \cdot y$	$\textstyle =$	$\displaystyle x \lor y$	(72)
$\displaystyle x \lor \sim x y$	$\textstyle =$	$\displaystyle x \lor y$	(73)


$\displaystyle x \land (\sim x \lor y)$	$\textstyle =$	$\displaystyle x \land y$	(74)
$\displaystyle x \cdot (\sim x \lor y)$	$\textstyle =$	$\displaystyle x \cdot y$	(75)
$\displaystyle x (\sim x \lor y)$	$\textstyle =$	$\displaystyle xy$	(76)