REVERSE SOLIDUS PRECEDING SUBSET
OPEN SUBSET
SUPERSET PRECEDING SOLIDUS
MATHEMATICAL RISING DIAGONAL
SQUARED LOGICAL OR
WHITE DIAMOND WITH CENTRED DOT
AND WITH DOT
LEFT MULTIMAP
WHITE CONCAVE-SIDED DIAMOND WITH LEFTWARDS TICK
WHITE SQUARE WITH RIGHTWARDS TICK
MATHEMATICAL RIGHT WHITE SQUARE BRACKET
MATHEMATICAL RIGHT ANGLE BRACKET
MATHEMATICAL LEFT DOUBLE ANGLE BRACKET
MATHEMATICAL LEFT WHITE TORTOISE SHELL BRACKET
MATHEMATICAL LEFT FLATTENED PARENTHESIS
MATHEMATICAL RIGHT FLATTENED PARENTHESIS