NotSuperset 
NotSuperset
NotSuperset[x,y,…]
displays as 
.
Details
- NotSuperset[x,y,…] has no built-in meaning.
is by default interpreted as NotSuperset[x,y].
can be entered as \[NotSuperset] or 
!sup
.
Examples
Basic Examples (2)
Typeset output automatically uses the corresponding character:
NotSuperset[x, y, z]An input using the typeset character gives a NotSuperset expression:
x⊅y⊅z//FullForm
Wolfram Research (1996), NotSuperset, Wolfram Language function, https://reference.wolfram.com/language/ref/NotSuperset.html.
Text
Wolfram Research (1996), NotSuperset, Wolfram Language function, https://reference.wolfram.com/language/ref/NotSuperset.html.
CMS
Wolfram Language. 1996. "NotSuperset." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/NotSuperset.html.
APA
Wolfram Language. (1996). NotSuperset. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/NotSuperset.html