OPEN SUBSET
WHITE TRIANGLE CONTAINING SMALL WHITE TRIANGLE
OPEN SUPERSET
LEFT S-SHAPED BAG DELIMITER
RIGHT S-SHAPED BAG DELIMITER
OR WITH DOT INSIDE
SQUARED LOGICAL AND
AND WITH DOT
ELEMENT OF OPENING UPWARDS
LEFT OUTER JOIN
LEFT AND RIGHT DOUBLE TURNSTILE
LEFT AND RIGHT TACK
WHITE CONCAVE-SIDED DIAMOND
WHITE CONCAVE-SIDED DIAMOND WITH LEFTWARDS TICK
MATHEMATICAL LEFT ANGLE BRACKET
MATHEMATICAL LEFT DOUBLE ANGLE BRACKET