MATHEMATICAL FALLING DIAGONAL
OPEN SUBSET
MATHEMATICAL RISING DIAGONAL
SQUARED LOGICAL OR
WHITE DIAMOND WITH CENTRED DOT
UPPER LEFT CORNER WITH DOT
LEFT OUTER JOIN
RIGHT OUTER JOIN
LEFT AND RIGHT TACK
WHITE CONCAVE-SIDED DIAMOND WITH LEFTWARDS TICK
WHITE CONCAVE-SIDED DIAMOND WITH RIGHTWARDS TICK
WHITE SQUARE WITH RIGHTWARDS TICK
MATHEMATICAL RIGHT WHITE SQUARE BRACKET
MATHEMATICAL LEFT DOUBLE ANGLE BRACKET
MATHEMATICAL RIGHT DOUBLE ANGLE BRACKET
MATHEMATICAL LEFT FLATTENED PARENTHESIS