are the arithmetic symbols that preserve their original meaning but take on a geometric interpretation. Here is a sample but not an exhaustive list of such operators:
\(\bot\) means "perpendicular to"
\(\|\) means "parallel to"
\(\in\) means "on" a straight line or a circumference
\(\notin\) means "not on" a straight line or a circumference
\(\subset\) means "inside" a shape - angle, circle, triangle, square, etc.
\(\not\subset\) means "not inside" a shape - angle, circle, triangle, square, etc.
\(\cap\) means "a geometric intersection of two objects" - a line and a line, a line and a circle, a circle and a circle, etc.
\(=\) means "some number of operations on the left side of the equal sign results in some number of objects on the right side of the equal sign"
\(\colon\) means "such that"
\(,\) means "and"
\(\blacksquare\)