MATHEMATICAL FALLING DIAGONAL
PERPENDICULAR
OPEN SUBSET
OPEN SUPERSET
LEFT S-SHAPED BAG DELIMITER
LARGE UP TACK
LEFT AND RIGHT DOUBLE TURNSTILE
LEFT MULTIMAP
UP TACK WITH CIRCLE ABOVE
WHITE CONCAVE-SIDED DIAMOND
WHITE SQUARE WITH LEFTWARDS TICK
WHITE SQUARE WITH RIGHTWARDS TICK
MATHEMATICAL LEFT WHITE SQUARE BRACKET
MATHEMATICAL RIGHT WHITE SQUARE BRACKET
MATHEMATICAL RIGHT ANGLE BRACKET
MATHEMATICAL LEFT DOUBLE ANGLE BRACKET