27D0

WHITE DIAMOND WITH CENTRED DOT

27D1

AND WITH DOT
x (logical and - 2227)
x (intersection with dot - 2A40)

27D2

ELEMENT OF OPENING UPWARDS
x (element of opening downwards - 2AD9)

27D3

LOWER RIGHT CORNER WITH DOT
= pullback
x (right floor - 230B)

27D4

UPPER LEFT CORNER WITH DOT
= pushout
x (left ceiling - 2308)

27D5

LEFT OUTER JOIN

27D6

RIGHT OUTER JOIN

27D7

FULL OUTER JOIN
x (join - 2A1D)

27D8

LARGE UP TACK
x (up tack - 22A5)

27D9

LARGE DOWN TACK
x (down tack - 22A4)

27DA

LEFT AND RIGHT DOUBLE TURNSTILE
x (true - 22A8)
x (vertical bar double left turnstile - 2AE4)

27DB

LEFT AND RIGHT TACK
x (right tack - 22A2)

27DC

LEFT MULTIMAP
x (multimap - 22B8)

27DD

LONG RIGHT TACK
x (right tack - 22A2)

27DE

LONG LEFT TACK
x (left tack - 22A3)

27DF

UP TACK WITH CIRCLE ABOVE
= radial component
x (down tack with circle below - 2AF1)

27E0

LOZENGE DIVIDED BY HORIZONTAL RULE
* used as form of possibility in modal logic
x (lozenge - 25CA)

27E1

WHITE CONCAVE-SIDED DIAMOND
= never (modal operator)

27E2

WHITE CONCAVE-SIDED DIAMOND WITH LEFTWARDS TICK
= was never (modal operator)

27E3

WHITE CONCAVE-SIDED DIAMOND WITH RIGHTWARDS TICK
= will never be (modal operator)

27E4

WHITE SQUARE WITH LEFTWARDS TICK
= was always (modal operator)
x (white square - 25A1)

27E5

WHITE SQUARE WITH RIGHTWARDS TICK
= will always be (modal operator)

27E6

MATHEMATICAL LEFT WHITE SQUARE BRACKET
x (left white square bracket - 301A)

27E7

MATHEMATICAL RIGHT WHITE SQUARE BRACKET
x (right white square bracket - 301B)

27E8

MATHEMATICAL LEFT ANGLE BRACKET
= bra
= z notation left sequence bracket
x (left-pointing angle bracket - 2329)
x (left angle bracket - 3008)

27E9

MATHEMATICAL RIGHT ANGLE BRACKET
= ket
= z notation right sequence bracket
x (right-pointing angle bracket - 232A)
x (right angle bracket - 3009)

27EA

MATHEMATICAL LEFT DOUBLE ANGLE BRACKET
= z notation left chevron bracket
x (left double angle bracket - 300A)

27EB

MATHEMATICAL RIGHT DOUBLE ANGLE BRACKET
= z notation right chevron bracket
x (right double angle bracket - 300B)