OPEN SUBSET
WHITE TRIANGLE CONTAINING SMALL WHITE TRIANGLE
OPEN SUPERSET
LEFT S-SHAPED BAG DELIMITER
OR WITH DOT INSIDE
REVERSE SOLIDUS PRECEDING SUBSET
MATHEMATICAL RISING DIAGONAL
WHITE DIAMOND WITH CENTRED DOT
ELEMENT OF OPENING UPWARDS
LOWER RIGHT CORNER WITH DOT
RIGHT OUTER JOIN
LEFT MULTIMAP
LONG RIGHT TACK
LONG LEFT TACK
LOZENGE DIVIDED BY HORIZONTAL RULE
MATHEMATICAL RIGHT WHITE SQUARE BRACKET