WHITE SQUARE WITH LEFTWARDS TICK
THREE DIMENSIONAL ANGLE
PERPENDICULAR
OPEN SUBSET
OPEN SUPERSET
LEFT S-SHAPED BAG DELIMITER
OR WITH DOT INSIDE
REVERSE SOLIDUS PRECEDING SUBSET
VERTICAL BAR WITH HORIZONTAL STROKE
SQUARED LOGICAL AND
WHITE DIAMOND WITH CENTRED DOT
ELEMENT OF OPENING UPWARDS
LOWER RIGHT CORNER WITH DOT
LEFT AND RIGHT TACK
MATHEMATICAL LEFT WHITE SQUARE BRACKET
MATHEMATICAL RIGHT WHITE TORTOISE SHELL BRACKET