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⨠

z notation schema piping

Z Notation Schema Piping Operator

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⨠ is Z’s schema-piping operator: it combines operation descriptions by passing variables between them and hides the linked variables. Plain-text Z writes the operation as S >> T.

Text symbol

What ⨠ means

It connects each matching output to an input.

A Z schema is a named description of a system state or operation. In Z, ? marks an input and ! an output.

Z notation grew from work in the 1970s to specify computer systems; piping is one operation in its schema calculus.

A specialist operator in Z’s schema calculus.

It is not a generic programming pipe.

Don't confuse it with

1

Questions people ask

1

Why does ⨠ show as a box on some devices?

Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.

How to type or find ⨠

Search it as
z pipe · z schema pipe · schema piping · z notation pipe symbol · z schema piping
Shows up in
Anything that takes text · its shape is whatever your font draws
Windows (Word)
⎇Alt+XType 2A20, then AltX to get ⨠.
Windows
⊞Win+Rrun charmap for the full table, or use the emoji picker's Ω symbols tab (Win .).
macOS
⌃Control+⌘Command+␣SpaceOpen the character viewer and search “z notation schema piping”.
Linux
⎈Ctrl+⇧Shift+UType 2a20, then Enter or Space.
HTML
⨠
CSS
\2A20
Type Z schema piping
In plain-text Z, write S >> T with two ordinary greater-than signs.
Codes and encoding1 code points
HTML decimal
⨠
HTML hex
⨠
CSS content
content: "\2A20";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E2%A8%A0
1
On screen
1
Code points
1
JS .length
3
UTF-8 bytes

A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.

Families this belongs to

1

Maths & numbers1,835 symbols