OPEN SUPERSET
OPEN SUBSET
LEFT S-SHAPED BAG DELIMITER
REVERSE SOLIDUS PRECEDING SUBSET
VERTICAL BAR WITH HORIZONTAL STROKE
MATHEMATICAL RISING DIAGONAL
WHITE DIAMOND WITH CENTRED DOT
LOWER RIGHT CORNER WITH DOT
LEFT OUTER JOIN
LEFT AND RIGHT DOUBLE TURNSTILE
LONG RIGHT TACK
WHITE CONCAVE-SIDED DIAMOND
MATHEMATICAL LEFT WHITE SQUARE BRACKET
MATHEMATICAL RIGHT WHITE SQUARE BRACKET
MATHEMATICAL RIGHT ANGLE BRACKET
MATHEMATICAL RIGHT WHITE TORTOISE SHELL BRACKET